/**
 * @licstart The following is the entire license notice for the
 * Javascript code in this page
 *
 * Copyright 2018 Mozilla Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @licend The above is the entire license notice for the
 * Javascript code in this page
 */

(function webpackUniversalModuleDefinition(root, factory) {
  if (typeof exports === 'object' && typeof module === 'object')
    module.exports = factory();
  else if (typeof define === 'function' && define.amd)
    define("pdfjs-dist/build/pdf", [], factory);
  else if (typeof exports === 'object')
    exports["pdfjs-dist/build/pdf"] = factory();
  else
    root["pdfjs-dist/build/pdf"] = root.pdfjsLib = factory();
})(this, function () {
  return /******/ (function (modules) { // webpackBootstrap
    /******/ 	// The module cache
    /******/
    var installedModules = {};
    /******/
    /******/ 	// The require function
    /******/
    function __w_pdfjs_require__(moduleId) {
      /******/
      /******/ 		// Check if module is in cache
      /******/
      if (installedModules[moduleId]) {
        /******/
        return installedModules[moduleId].exports;
        /******/
      }
      /******/ 		// Create a new module (and put it into the cache)
      /******/
      var module = installedModules[moduleId] = {
        /******/      i: moduleId,
        /******/      l: false,
        /******/      exports: {}
        /******/
      };
      /******/
      /******/ 		// Execute the module function
      /******/
      modules[moduleId].call(module.exports, module, module.exports, __w_pdfjs_require__);
      /******/
      /******/ 		// Flag the module as loaded
      /******/
      module.l = true;
      /******/
      /******/ 		// Return the exports of the module
      /******/
      return module.exports;
      /******/
    }

    /******/
    /******/
    /******/ 	// expose the modules object (__webpack_modules__)
    /******/
    __w_pdfjs_require__.m = modules;
    /******/
    /******/ 	// expose the module cache
    /******/
    __w_pdfjs_require__.c = installedModules;
    /******/
    /******/ 	// define getter function for harmony exports
    /******/
    __w_pdfjs_require__.d = function (exports, name, getter) {
      /******/
      if (!__w_pdfjs_require__.o(exports, name)) {
        /******/
        Object.defineProperty(exports, name, {enumerable: true, get: getter});
        /******/
      }
      /******/
    };
    /******/
    /******/ 	// define __esModule on exports
    /******/
    __w_pdfjs_require__.r = function (exports) {
      /******/
      if (typeof Symbol !== 'undefined' && Symbol.toStringTag) {
        /******/
        Object.defineProperty(exports, Symbol.toStringTag, {value: 'Module'});
        /******/
      }
      /******/
      Object.defineProperty(exports, '__esModule', {value: true});
      /******/
    };
    /******/
    /******/ 	// create a fake namespace object
    /******/ 	// mode & 1: value is a module id, require it
    /******/ 	// mode & 2: merge all properties of value into the ns
    /******/ 	// mode & 4: return value when already ns object
    /******/ 	// mode & 8|1: behave like require
    /******/
    __w_pdfjs_require__.t = function (value, mode) {
      /******/
      if (mode & 1) value = __w_pdfjs_require__(value);
      /******/
      if (mode & 8) return value;
      /******/
      if ((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
      /******/
      var ns = Object.create(null);
      /******/
      __w_pdfjs_require__.r(ns);
      /******/
      Object.defineProperty(ns, 'default', {enumerable: true, value: value});
      /******/
      if (mode & 2 && typeof value != 'string') for (var key in value) __w_pdfjs_require__.d(ns, key, function (key) {
        return value[key];
      }.bind(null, key));
      /******/
      return ns;
      /******/
    };
    /******/
    /******/ 	// getDefaultExport function for compatibility with non-harmony modules
    /******/
    __w_pdfjs_require__.n = function (module) {
      /******/
      var getter = module && module.__esModule ?
        /******/      function getDefault() {
          return module['default'];
        } :
        /******/      function getModuleExports() {
          return module;
        };
      /******/
      __w_pdfjs_require__.d(getter, 'a', getter);
      /******/
      return getter;
      /******/
    };
    /******/
    /******/ 	// Object.prototype.hasOwnProperty.call
    /******/
    __w_pdfjs_require__.o = function (object, property) {
      return Object.prototype.hasOwnProperty.call(object, property);
    };
    /******/
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    /******/
    __w_pdfjs_require__.p = "";
    /******/
    /******/
    /******/ 	// Load entry module and return exports
    /******/
    return __w_pdfjs_require__(__w_pdfjs_require__.s = 0);
    /******/
  })
    /************************************************************************/
    /******/ ([
      /* 0 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var pdfjsVersion = '2.1.266';
        var pdfjsBuild = '81f5835c';

        var pdfjsSharedUtil = __w_pdfjs_require__(1);

        var pdfjsDisplayAPI = __w_pdfjs_require__(146);

        var pdfjsDisplayTextLayer = __w_pdfjs_require__(162);

        var pdfjsDisplayAnnotationLayer = __w_pdfjs_require__(163);

        var pdfjsDisplayDOMUtils = __w_pdfjs_require__(151);

        var pdfjsDisplaySVG = __w_pdfjs_require__(164);

        var pdfjsDisplayWorkerOptions = __w_pdfjs_require__(156);

        var pdfjsDisplayAPICompatibility = __w_pdfjs_require__(153);

        {
          var isNodeJS = __w_pdfjs_require__(4);

          if (isNodeJS()) {
            var PDFNodeStream = __w_pdfjs_require__(165).PDFNodeStream;

            pdfjsDisplayAPI.setPDFNetworkStreamFactory(function (params) {
              return new PDFNodeStream(params);
            });
          } else if (typeof Response !== 'undefined' && 'body' in Response.prototype && typeof ReadableStream !== 'undefined') {
            var PDFFetchStream = __w_pdfjs_require__(168).PDFFetchStream;

            pdfjsDisplayAPI.setPDFNetworkStreamFactory(function (params) {
              return new PDFFetchStream(params);
            });
          } else {
            var PDFNetworkStream = __w_pdfjs_require__(169).PDFNetworkStream;

            pdfjsDisplayAPI.setPDFNetworkStreamFactory(function (params) {
              return new PDFNetworkStream(params);
            });
          }
        }
        exports.build = pdfjsDisplayAPI.build;
        exports.version = pdfjsDisplayAPI.version;
        exports.getDocument = pdfjsDisplayAPI.getDocument;
        exports.LoopbackPort = pdfjsDisplayAPI.LoopbackPort;
        exports.PDFDataRangeTransport = pdfjsDisplayAPI.PDFDataRangeTransport;
        exports.PDFWorker = pdfjsDisplayAPI.PDFWorker;
        exports.renderTextLayer = pdfjsDisplayTextLayer.renderTextLayer;
        exports.AnnotationLayer = pdfjsDisplayAnnotationLayer.AnnotationLayer;
        exports.createPromiseCapability = pdfjsSharedUtil.createPromiseCapability;
        exports.PasswordResponses = pdfjsSharedUtil.PasswordResponses;
        exports.InvalidPDFException = pdfjsSharedUtil.InvalidPDFException;
        exports.MissingPDFException = pdfjsSharedUtil.MissingPDFException;
        exports.SVGGraphics = pdfjsDisplaySVG.SVGGraphics;
        exports.NativeImageDecoding = pdfjsSharedUtil.NativeImageDecoding;
        exports.CMapCompressionType = pdfjsSharedUtil.CMapCompressionType;
        exports.PermissionFlag = pdfjsSharedUtil.PermissionFlag;
        exports.UnexpectedResponseException = pdfjsSharedUtil.UnexpectedResponseException;
        exports.OPS = pdfjsSharedUtil.OPS;
        exports.VerbosityLevel = pdfjsSharedUtil.VerbosityLevel;
        exports.UNSUPPORTED_FEATURES = pdfjsSharedUtil.UNSUPPORTED_FEATURES;
        exports.createValidAbsoluteUrl = pdfjsSharedUtil.createValidAbsoluteUrl;
        exports.createObjectURL = pdfjsSharedUtil.createObjectURL;
        exports.removeNullCharacters = pdfjsSharedUtil.removeNullCharacters;
        exports.shadow = pdfjsSharedUtil.shadow;
        exports.Util = pdfjsSharedUtil.Util;
        exports.ReadableStream = pdfjsSharedUtil.ReadableStream;
        exports.URL = pdfjsSharedUtil.URL;
        exports.RenderingCancelledException = pdfjsDisplayDOMUtils.RenderingCancelledException;
        exports.getFilenameFromUrl = pdfjsDisplayDOMUtils.getFilenameFromUrl;
        exports.LinkTarget = pdfjsDisplayDOMUtils.LinkTarget;
        exports.addLinkAttributes = pdfjsDisplayDOMUtils.addLinkAttributes;
        exports.loadScript = pdfjsDisplayDOMUtils.loadScript;
        exports.GlobalWorkerOptions = pdfjsDisplayWorkerOptions.GlobalWorkerOptions;
        exports.apiCompatibilityParams = pdfjsDisplayAPICompatibility.apiCompatibilityParams;

        /***/
      }),
      /* 1 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.toRomanNumerals = toRomanNumerals;
        exports.arrayByteLength = arrayByteLength;
        exports.arraysToBytes = arraysToBytes;
        exports.assert = assert;
        exports.bytesToString = bytesToString;
        exports.createPromiseCapability = createPromiseCapability;
        exports.deprecated = deprecated;
        exports.getInheritableProperty = getInheritableProperty;
        exports.getLookupTableFactory = getLookupTableFactory;
        exports.getVerbosityLevel = getVerbosityLevel;
        exports.info = info;
        exports.isArrayBuffer = isArrayBuffer;
        exports.isBool = isBool;
        exports.isEmptyObj = isEmptyObj;
        exports.isNum = isNum;
        exports.isString = isString;
        exports.isSpace = isSpace;
        exports.isSameOrigin = isSameOrigin;
        exports.createValidAbsoluteUrl = createValidAbsoluteUrl;
        exports.isLittleEndian = isLittleEndian;
        exports.isEvalSupported = isEvalSupported;
        exports.log2 = log2;
        exports.readInt8 = readInt8;
        exports.readUint16 = readUint16;
        exports.readUint32 = readUint32;
        exports.removeNullCharacters = removeNullCharacters;
        exports.setVerbosityLevel = setVerbosityLevel;
        exports.shadow = shadow;
        exports.string32 = string32;
        exports.stringToBytes = stringToBytes;
        exports.stringToPDFString = stringToPDFString;
        exports.stringToUTF8String = stringToUTF8String;
        exports.utf8StringToString = utf8StringToString;
        exports.warn = warn;
        exports.unreachable = unreachable;
        Object.defineProperty(exports, "ReadableStream", {
          enumerable: true,
          get: function get() {
            return _streams_polyfill.ReadableStream;
          }
        });
        Object.defineProperty(exports, "URL", {
          enumerable: true,
          get: function get() {
            return _url_polyfill.URL;
          }
        });
        exports.createObjectURL = exports.FormatError = exports.XRefParseException = exports.XRefEntryException = exports.Util = exports.UnknownErrorException = exports.UnexpectedResponseException = exports.TextRenderingMode = exports.StreamType = exports.PermissionFlag = exports.PasswordResponses = exports.PasswordException = exports.NativeImageDecoding = exports.MissingPDFException = exports.MissingDataException = exports.InvalidPDFException = exports.AbortException = exports.CMapCompressionType = exports.ImageKind = exports.FontType = exports.AnnotationType = exports.AnnotationFlag = exports.AnnotationFieldFlag = exports.AnnotationBorderStyleType = exports.UNSUPPORTED_FEATURES = exports.VerbosityLevel = exports.OPS = exports.IDENTITY_MATRIX = exports.FONT_IDENTITY_MATRIX = void 0;

        __w_pdfjs_require__(2);

        var _streams_polyfill = __w_pdfjs_require__(142);

        var _url_polyfill = __w_pdfjs_require__(144);

        function _typeof(obj) {
          if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof = function _typeof(obj) {
              return typeof obj;
            };
          } else {
            _typeof = function _typeof(obj) {
              return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
          }
          return _typeof(obj);
        }

        var IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];
        exports.IDENTITY_MATRIX = IDENTITY_MATRIX;
        var FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];
        exports.FONT_IDENTITY_MATRIX = FONT_IDENTITY_MATRIX;
        var NativeImageDecoding = {
          NONE: 'none',
          DECODE: 'decode',
          DISPLAY: 'display'
        };
        exports.NativeImageDecoding = NativeImageDecoding;
        var PermissionFlag = {
          PRINT: 0x04,
          MODIFY_CONTENTS: 0x08,
          COPY: 0x10,
          MODIFY_ANNOTATIONS: 0x20,
          FILL_INTERACTIVE_FORMS: 0x100,
          COPY_FOR_ACCESSIBILITY: 0x200,
          ASSEMBLE: 0x400,
          PRINT_HIGH_QUALITY: 0x800
        };
        exports.PermissionFlag = PermissionFlag;
        var TextRenderingMode = {
          FILL: 0,
          STROKE: 1,
          FILL_STROKE: 2,
          INVISIBLE: 3,
          FILL_ADD_TO_PATH: 4,
          STROKE_ADD_TO_PATH: 5,
          FILL_STROKE_ADD_TO_PATH: 6,
          ADD_TO_PATH: 7,
          FILL_STROKE_MASK: 3,
          ADD_TO_PATH_FLAG: 4
        };
        exports.TextRenderingMode = TextRenderingMode;
        var ImageKind = {
          GRAYSCALE_1BPP: 1,
          RGB_24BPP: 2,
          RGBA_32BPP: 3
        };
        exports.ImageKind = ImageKind;
        var AnnotationType = {
          TEXT: 1,
          LINK: 2,
          FREETEXT: 3,
          LINE: 4,
          SQUARE: 5,
          CIRCLE: 6,
          POLYGON: 7,
          POLYLINE: 8,
          HIGHLIGHT: 9,
          UNDERLINE: 10,
          SQUIGGLY: 11,
          STRIKEOUT: 12,
          STAMP: 13,
          CARET: 14,
          INK: 15,
          POPUP: 16,
          FILEATTACHMENT: 17,
          SOUND: 18,
          MOVIE: 19,
          WIDGET: 20,
          SCREEN: 21,
          PRINTERMARK: 22,
          TRAPNET: 23,
          WATERMARK: 24,
          THREED: 25,
          REDACT: 26
        };
        exports.AnnotationType = AnnotationType;
        var AnnotationFlag = {
          INVISIBLE: 0x01,
          HIDDEN: 0x02,
          PRINT: 0x04,
          NOZOOM: 0x08,
          NOROTATE: 0x10,
          NOVIEW: 0x20,
          READONLY: 0x40,
          LOCKED: 0x80,
          TOGGLENOVIEW: 0x100,
          LOCKEDCONTENTS: 0x200
        };
        exports.AnnotationFlag = AnnotationFlag;
        var AnnotationFieldFlag = {
          READONLY: 0x0000001,
          REQUIRED: 0x0000002,
          NOEXPORT: 0x0000004,
          MULTILINE: 0x0001000,
          PASSWORD: 0x0002000,
          NOTOGGLETOOFF: 0x0004000,
          RADIO: 0x0008000,
          PUSHBUTTON: 0x0010000,
          COMBO: 0x0020000,
          EDIT: 0x0040000,
          SORT: 0x0080000,
          FILESELECT: 0x0100000,
          MULTISELECT: 0x0200000,
          DONOTSPELLCHECK: 0x0400000,
          DONOTSCROLL: 0x0800000,
          COMB: 0x1000000,
          RICHTEXT: 0x2000000,
          RADIOSINUNISON: 0x2000000,
          COMMITONSELCHANGE: 0x4000000
        };
        exports.AnnotationFieldFlag = AnnotationFieldFlag;
        var AnnotationBorderStyleType = {
          SOLID: 1,
          DASHED: 2,
          BEVELED: 3,
          INSET: 4,
          UNDERLINE: 5
        };
        exports.AnnotationBorderStyleType = AnnotationBorderStyleType;
        var StreamType = {
          UNKNOWN: 0,
          FLATE: 1,
          LZW: 2,
          DCT: 3,
          JPX: 4,
          JBIG: 5,
          A85: 6,
          AHX: 7,
          CCF: 8,
          RL: 9
        };
        exports.StreamType = StreamType;
        var FontType = {
          UNKNOWN: 0,
          TYPE1: 1,
          TYPE1C: 2,
          CIDFONTTYPE0: 3,
          CIDFONTTYPE0C: 4,
          TRUETYPE: 5,
          CIDFONTTYPE2: 6,
          TYPE3: 7,
          OPENTYPE: 8,
          TYPE0: 9,
          MMTYPE1: 10
        };
        exports.FontType = FontType;
        var VerbosityLevel = {
          ERRORS: 0,
          WARNINGS: 1,
          INFOS: 5
        };
        exports.VerbosityLevel = VerbosityLevel;
        var CMapCompressionType = {
          NONE: 0,
          BINARY: 1,
          STREAM: 2
        };
        exports.CMapCompressionType = CMapCompressionType;
        var OPS = {
          dependency: 1,
          setLineWidth: 2,
          setLineCap: 3,
          setLineJoin: 4,
          setMiterLimit: 5,
          setDash: 6,
          setRenderingIntent: 7,
          setFlatness: 8,
          setGState: 9,
          save: 10,
          restore: 11,
          transform: 12,
          moveTo: 13,
          lineTo: 14,
          curveTo: 15,
          curveTo2: 16,
          curveTo3: 17,
          closePath: 18,
          rectangle: 19,
          stroke: 20,
          closeStroke: 21,
          fill: 22,
          eoFill: 23,
          fillStroke: 24,
          eoFillStroke: 25,
          closeFillStroke: 26,
          closeEOFillStroke: 27,
          endPath: 28,
          clip: 29,
          eoClip: 30,
          beginText: 31,
          endText: 32,
          setCharSpacing: 33,
          setWordSpacing: 34,
          setHScale: 35,
          setLeading: 36,
          setFont: 37,
          setTextRenderingMode: 38,
          setTextRise: 39,
          moveText: 40,
          setLeadingMoveText: 41,
          setTextMatrix: 42,
          nextLine: 43,
          showText: 44,
          showSpacedText: 45,
          nextLineShowText: 46,
          nextLineSetSpacingShowText: 47,
          setCharWidth: 48,
          setCharWidthAndBounds: 49,
          setStrokeColorSpace: 50,
          setFillColorSpace: 51,
          setStrokeColor: 52,
          setStrokeColorN: 53,
          setFillColor: 54,
          setFillColorN: 55,
          setStrokeGray: 56,
          setFillGray: 57,
          setStrokeRGBColor: 58,
          setFillRGBColor: 59,
          setStrokeCMYKColor: 60,
          setFillCMYKColor: 61,
          shadingFill: 62,
          beginInlineImage: 63,
          beginImageData: 64,
          endInlineImage: 65,
          paintXObject: 66,
          markPoint: 67,
          markPointProps: 68,
          beginMarkedContent: 69,
          beginMarkedContentProps: 70,
          endMarkedContent: 71,
          beginCompat: 72,
          endCompat: 73,
          paintFormXObjectBegin: 74,
          paintFormXObjectEnd: 75,
          beginGroup: 76,
          endGroup: 77,
          beginAnnotations: 78,
          endAnnotations: 79,
          beginAnnotation: 80,
          endAnnotation: 81,
          paintJpegXObject: 82,
          paintImageMaskXObject: 83,
          paintImageMaskXObjectGroup: 84,
          paintImageXObject: 85,
          paintInlineImageXObject: 86,
          paintInlineImageXObjectGroup: 87,
          paintImageXObjectRepeat: 88,
          paintImageMaskXObjectRepeat: 89,
          paintSolidColorImageMask: 90,
          constructPath: 91
        };
        exports.OPS = OPS;
        var UNSUPPORTED_FEATURES = {
          unknown: 'unknown',
          forms: 'forms',
          javaScript: 'javaScript',
          smask: 'smask',
          shadingPattern: 'shadingPattern',
          font: 'font'
        };
        exports.UNSUPPORTED_FEATURES = UNSUPPORTED_FEATURES;
        var PasswordResponses = {
          NEED_PASSWORD: 1,
          INCORRECT_PASSWORD: 2
        };
        exports.PasswordResponses = PasswordResponses;
        var verbosity = VerbosityLevel.WARNINGS;

        function setVerbosityLevel(level) {
          if (Number.isInteger(level)) {
            verbosity = level;
          }
        }

        function getVerbosityLevel() {
          return verbosity;
        }

        function info(msg) {
          if (verbosity >= VerbosityLevel.INFOS) {
            console.log('Info: ' + msg);
          }
        }

        function warn(msg) {
          if (verbosity >= VerbosityLevel.WARNINGS) {
            console.log('Warning: ' + msg);
          }
        }

        function deprecated(details) {
          console.log('Deprecated API usage: ' + details);
        }

        function unreachable(msg) {
          throw new Error(msg);
        }

        function assert(cond, msg) {
          if (!cond) {
            unreachable(msg);
          }
        }

        function isSameOrigin(baseUrl, otherUrl) {
          try {
            var base = new _url_polyfill.URL(baseUrl);

            if (!base.origin || base.origin === 'null') {
              return false;
            }
          } catch (e) {
            return false;
          }

          var other = new _url_polyfill.URL(otherUrl, base);
          return base.origin === other.origin;
        }

        function _isValidProtocol(url) {
          if (!url) {
            return false;
          }

          switch (url.protocol) {
            case 'http:':
            case 'https:':
            case 'ftp:':
            case 'mailto:':
            case 'tel:':
              return true;

            default:
              return false;
          }
        }

        function createValidAbsoluteUrl(url, baseUrl) {
          if (!url) {
            return null;
          }

          try {
            var absoluteUrl = baseUrl ? new _url_polyfill.URL(url, baseUrl) : new _url_polyfill.URL(url);

            if (_isValidProtocol(absoluteUrl)) {
              return absoluteUrl;
            }
          } catch (ex) {
          }

          return null;
        }

        function shadow(obj, prop, value) {
          Object.defineProperty(obj, prop, {
            value: value,
            enumerable: true,
            configurable: true,
            writable: false
          });
          return value;
        }

        function getLookupTableFactory(initializer) {
          var lookup;
          return function () {
            if (initializer) {
              lookup = Object.create(null);
              initializer(lookup);
              initializer = null;
            }

            return lookup;
          };
        }

        var PasswordException = function PasswordExceptionClosure() {
          function PasswordException(msg, code) {
            this.name = 'PasswordException';
            this.message = msg;
            this.code = code;
          }

          PasswordException.prototype = new Error();
          PasswordException.constructor = PasswordException;
          return PasswordException;
        }();

        exports.PasswordException = PasswordException;

        var UnknownErrorException = function UnknownErrorExceptionClosure() {
          function UnknownErrorException(msg, details) {
            this.name = 'UnknownErrorException';
            this.message = msg;
            this.details = details;
          }

          UnknownErrorException.prototype = new Error();
          UnknownErrorException.constructor = UnknownErrorException;
          return UnknownErrorException;
        }();

        exports.UnknownErrorException = UnknownErrorException;

        var InvalidPDFException = function InvalidPDFExceptionClosure() {
          function InvalidPDFException(msg) {
            this.name = 'InvalidPDFException';
            this.message = msg;
          }

          InvalidPDFException.prototype = new Error();
          InvalidPDFException.constructor = InvalidPDFException;
          return InvalidPDFException;
        }();

        exports.InvalidPDFException = InvalidPDFException;

        var MissingPDFException = function MissingPDFExceptionClosure() {
          function MissingPDFException(msg) {
            this.name = 'MissingPDFException';
            this.message = msg;
          }

          MissingPDFException.prototype = new Error();
          MissingPDFException.constructor = MissingPDFException;
          return MissingPDFException;
        }();

        exports.MissingPDFException = MissingPDFException;

        var UnexpectedResponseException = function UnexpectedResponseExceptionClosure() {
          function UnexpectedResponseException(msg, status) {
            this.name = 'UnexpectedResponseException';
            this.message = msg;
            this.status = status;
          }

          UnexpectedResponseException.prototype = new Error();
          UnexpectedResponseException.constructor = UnexpectedResponseException;
          return UnexpectedResponseException;
        }();

        exports.UnexpectedResponseException = UnexpectedResponseException;

        var MissingDataException = function MissingDataExceptionClosure() {
          function MissingDataException(begin, end) {
            this.begin = begin;
            this.end = end;
            this.message = 'Missing data [' + begin + ', ' + end + ')';
          }

          MissingDataException.prototype = new Error();
          MissingDataException.prototype.name = 'MissingDataException';
          MissingDataException.constructor = MissingDataException;
          return MissingDataException;
        }();

        exports.MissingDataException = MissingDataException;

        var XRefEntryException = function XRefEntryExceptionClosure() {
          function XRefEntryException(msg) {
            this.message = msg;
          }

          XRefEntryException.prototype = new Error();
          XRefEntryException.prototype.name = 'XRefEntryException';
          XRefEntryException.constructor = XRefEntryException;
          return XRefEntryException;
        }();

        exports.XRefEntryException = XRefEntryException;

        var XRefParseException = function XRefParseExceptionClosure() {
          function XRefParseException(msg) {
            this.message = msg;
          }

          XRefParseException.prototype = new Error();
          XRefParseException.prototype.name = 'XRefParseException';
          XRefParseException.constructor = XRefParseException;
          return XRefParseException;
        }();

        exports.XRefParseException = XRefParseException;

        var FormatError = function FormatErrorClosure() {
          function FormatError(msg) {
            this.message = msg;
          }

          FormatError.prototype = new Error();
          FormatError.prototype.name = 'FormatError';
          FormatError.constructor = FormatError;
          return FormatError;
        }();

        exports.FormatError = FormatError;

        var AbortException = function AbortExceptionClosure() {
          function AbortException(msg) {
            this.name = 'AbortException';
            this.message = msg;
          }

          AbortException.prototype = new Error();
          AbortException.constructor = AbortException;
          return AbortException;
        }();

        exports.AbortException = AbortException;
        var NullCharactersRegExp = /\x00/g;

        function removeNullCharacters(str) {
          if (typeof str !== 'string') {
            warn('The argument for removeNullCharacters must be a string.');
            return str;
          }

          return str.replace(NullCharactersRegExp, '');
        }

        function bytesToString(bytes) {
          assert(bytes !== null && _typeof(bytes) === 'object' && bytes.length !== undefined, 'Invalid argument for bytesToString');
          var length = bytes.length;
          var MAX_ARGUMENT_COUNT = 8192;

          if (length < MAX_ARGUMENT_COUNT) {
            return String.fromCharCode.apply(null, bytes);
          }

          var strBuf = [];

          for (var i = 0; i < length; i += MAX_ARGUMENT_COUNT) {
            var chunkEnd = Math.min(i + MAX_ARGUMENT_COUNT, length);
            var chunk = bytes.subarray(i, chunkEnd);
            strBuf.push(String.fromCharCode.apply(null, chunk));
          }

          return strBuf.join('');
        }

        function stringToBytes(str) {
          assert(typeof str === 'string', 'Invalid argument for stringToBytes');
          var length = str.length;
          var bytes = new Uint8Array(length);

          for (var i = 0; i < length; ++i) {
            bytes[i] = str.charCodeAt(i) & 0xFF;
          }

          return bytes;
        }

        function arrayByteLength(arr) {
          if (arr.length !== undefined) {
            return arr.length;
          }

          assert(arr.byteLength !== undefined);
          return arr.byteLength;
        }

        function arraysToBytes(arr) {
          if (arr.length === 1 && arr[0] instanceof Uint8Array) {
            return arr[0];
          }

          var resultLength = 0;
          var i,
            ii = arr.length;
          var item, itemLength;

          for (i = 0; i < ii; i++) {
            item = arr[i];
            itemLength = arrayByteLength(item);
            resultLength += itemLength;
          }

          var pos = 0;
          var data = new Uint8Array(resultLength);

          for (i = 0; i < ii; i++) {
            item = arr[i];

            if (!(item instanceof Uint8Array)) {
              if (typeof item === 'string') {
                item = stringToBytes(item);
              } else {
                item = new Uint8Array(item);
              }
            }

            itemLength = item.byteLength;
            data.set(item, pos);
            pos += itemLength;
          }

          return data;
        }

        function string32(value) {
          return String.fromCharCode(value >> 24 & 0xff, value >> 16 & 0xff, value >> 8 & 0xff, value & 0xff);
        }

        function log2(x) {
          if (x <= 0) {
            return 0;
          }

          return Math.ceil(Math.log2(x));
        }

        function readInt8(data, start) {
          return data[start] << 24 >> 24;
        }

        function readUint16(data, offset) {
          return data[offset] << 8 | data[offset + 1];
        }

        function readUint32(data, offset) {
          return (data[offset] << 24 | data[offset + 1] << 16 | data[offset + 2] << 8 | data[offset + 3]) >>> 0;
        }

        function isLittleEndian() {
          var buffer8 = new Uint8Array(4);
          buffer8[0] = 1;
          var view32 = new Uint32Array(buffer8.buffer, 0, 1);
          return view32[0] === 1;
        }

        function isEvalSupported() {
          try {
            new Function('');
            return true;
          } catch (e) {
            return false;
          }
        }

        function getInheritableProperty(_ref) {
          var dict = _ref.dict,
            key = _ref.key,
            _ref$getArray = _ref.getArray,
            getArray = _ref$getArray === void 0 ? false : _ref$getArray,
            _ref$stopWhenFound = _ref.stopWhenFound,
            stopWhenFound = _ref$stopWhenFound === void 0 ? true : _ref$stopWhenFound;
          var LOOP_LIMIT = 100;
          var loopCount = 0;
          var values;

          while (dict) {
            var value = getArray ? dict.getArray(key) : dict.get(key);

            if (value !== undefined) {
              if (stopWhenFound) {
                return value;
              }

              if (!values) {
                values = [];
              }

              values.push(value);
            }

            if (++loopCount > LOOP_LIMIT) {
              warn("getInheritableProperty: maximum loop count exceeded for \"".concat(key, "\""));
              break;
            }

            dict = dict.get('Parent');
          }

          return values;
        }

        var Util = function UtilClosure() {
          function Util() {
          }

          var rgbBuf = ['rgb(', 0, ',', 0, ',', 0, ')'];

          Util.makeCssRgb = function Util_makeCssRgb(r, g, b) {
            rgbBuf[1] = r;
            rgbBuf[3] = g;
            rgbBuf[5] = b;
            return rgbBuf.join('');
          };

          Util.transform = function Util_transform(m1, m2) {
            return [m1[0] * m2[0] + m1[2] * m2[1], m1[1] * m2[0] + m1[3] * m2[1], m1[0] * m2[2] + m1[2] * m2[3], m1[1] * m2[2] + m1[3] * m2[3], m1[0] * m2[4] + m1[2] * m2[5] + m1[4], m1[1] * m2[4] + m1[3] * m2[5] + m1[5]];
          };

          Util.applyTransform = function Util_applyTransform(p, m) {
            var xt = p[0] * m[0] + p[1] * m[2] + m[4];
            var yt = p[0] * m[1] + p[1] * m[3] + m[5];
            return [xt, yt];
          };

          Util.applyInverseTransform = function Util_applyInverseTransform(p, m) {
            var d = m[0] * m[3] - m[1] * m[2];
            var xt = (p[0] * m[3] - p[1] * m[2] + m[2] * m[5] - m[4] * m[3]) / d;
            var yt = (-p[0] * m[1] + p[1] * m[0] + m[4] * m[1] - m[5] * m[0]) / d;
            return [xt, yt];
          };

          Util.getAxialAlignedBoundingBox = function Util_getAxialAlignedBoundingBox(r, m) {
            var p1 = Util.applyTransform(r, m);
            var p2 = Util.applyTransform(r.slice(2, 4), m);
            var p3 = Util.applyTransform([r[0], r[3]], m);
            var p4 = Util.applyTransform([r[2], r[1]], m);
            return [Math.min(p1[0], p2[0], p3[0], p4[0]), Math.min(p1[1], p2[1], p3[1], p4[1]), Math.max(p1[0], p2[0], p3[0], p4[0]), Math.max(p1[1], p2[1], p3[1], p4[1])];
          };

          Util.inverseTransform = function Util_inverseTransform(m) {
            var d = m[0] * m[3] - m[1] * m[2];
            return [m[3] / d, -m[1] / d, -m[2] / d, m[0] / d, (m[2] * m[5] - m[4] * m[3]) / d, (m[4] * m[1] - m[5] * m[0]) / d];
          };

          Util.apply3dTransform = function Util_apply3dTransform(m, v) {
            return [m[0] * v[0] + m[1] * v[1] + m[2] * v[2], m[3] * v[0] + m[4] * v[1] + m[5] * v[2], m[6] * v[0] + m[7] * v[1] + m[8] * v[2]];
          };

          Util.singularValueDecompose2dScale = function Util_singularValueDecompose2dScale(m) {
            var transpose = [m[0], m[2], m[1], m[3]];
            var a = m[0] * transpose[0] + m[1] * transpose[2];
            var b = m[0] * transpose[1] + m[1] * transpose[3];
            var c = m[2] * transpose[0] + m[3] * transpose[2];
            var d = m[2] * transpose[1] + m[3] * transpose[3];
            var first = (a + d) / 2;
            var second = Math.sqrt((a + d) * (a + d) - 4 * (a * d - c * b)) / 2;
            var sx = first + second || 1;
            var sy = first - second || 1;
            return [Math.sqrt(sx), Math.sqrt(sy)];
          };

          Util.normalizeRect = function Util_normalizeRect(rect) {
            var r = rect.slice(0);

            if (rect[0] > rect[2]) {
              r[0] = rect[2];
              r[2] = rect[0];
            }

            if (rect[1] > rect[3]) {
              r[1] = rect[3];
              r[3] = rect[1];
            }

            return r;
          };

          Util.intersect = function Util_intersect(rect1, rect2) {
            function compare(a, b) {
              return a - b;
            }

            var orderedX = [rect1[0], rect1[2], rect2[0], rect2[2]].sort(compare),
              orderedY = [rect1[1], rect1[3], rect2[1], rect2[3]].sort(compare),
              result = [];
            rect1 = Util.normalizeRect(rect1);
            rect2 = Util.normalizeRect(rect2);

            if (orderedX[0] === rect1[0] && orderedX[1] === rect2[0] || orderedX[0] === rect2[0] && orderedX[1] === rect1[0]) {
              result[0] = orderedX[1];
              result[2] = orderedX[2];
            } else {
              return false;
            }

            if (orderedY[0] === rect1[1] && orderedY[1] === rect2[1] || orderedY[0] === rect2[1] && orderedY[1] === rect1[1]) {
              result[1] = orderedY[1];
              result[3] = orderedY[2];
            } else {
              return false;
            }

            return result;
          };

          return Util;
        }();

        exports.Util = Util;
        var ROMAN_NUMBER_MAP = ['', 'C', 'CC', 'CCC', 'CD', 'D', 'DC', 'DCC', 'DCCC', 'CM', '', 'X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC', '', 'I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX'];

        function toRomanNumerals(number) {
          var lowerCase = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
          assert(Number.isInteger(number) && number > 0, 'The number should be a positive integer.');
          var pos,
            romanBuf = [];

          while (number >= 1000) {
            number -= 1000;
            romanBuf.push('M');
          }

          pos = number / 100 | 0;
          number %= 100;
          romanBuf.push(ROMAN_NUMBER_MAP[pos]);
          pos = number / 10 | 0;
          number %= 10;
          romanBuf.push(ROMAN_NUMBER_MAP[10 + pos]);
          romanBuf.push(ROMAN_NUMBER_MAP[20 + number]);
          var romanStr = romanBuf.join('');
          return lowerCase ? romanStr.toLowerCase() : romanStr;
        }

        var PDFStringTranslateTable = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2D8, 0x2C7, 0x2C6, 0x2D9, 0x2DD, 0x2DB, 0x2DA, 0x2DC, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2022, 0x2020, 0x2021, 0x2026, 0x2014, 0x2013, 0x192, 0x2044, 0x2039, 0x203A, 0x2212, 0x2030, 0x201E, 0x201C, 0x201D, 0x2018, 0x2019, 0x201A, 0x2122, 0xFB01, 0xFB02, 0x141, 0x152, 0x160, 0x178, 0x17D, 0x131, 0x142, 0x153, 0x161, 0x17E, 0, 0x20AC];

        function stringToPDFString(str) {
          var i,
            n = str.length,
            strBuf = [];

          if (str[0] === '\xFE' && str[1] === '\xFF') {
            for (i = 2; i < n; i += 2) {
              strBuf.push(String.fromCharCode(str.charCodeAt(i) << 8 | str.charCodeAt(i + 1)));
            }
          } else {
            for (i = 0; i < n; ++i) {
              var code = PDFStringTranslateTable[str.charCodeAt(i)];
              strBuf.push(code ? String.fromCharCode(code) : str.charAt(i));
            }
          }

          return strBuf.join('');
        }

        function stringToUTF8String(str) {
          return decodeURIComponent(escape(str));
        }

        function utf8StringToString(str) {
          return unescape(encodeURIComponent(str));
        }

        function isEmptyObj(obj) {
          for (var key in obj) {
            return false;
          }

          return true;
        }

        function isBool(v) {
          return typeof v === 'boolean';
        }

        function isNum(v) {
          return typeof v === 'number';
        }

        function isString(v) {
          return typeof v === 'string';
        }

        function isArrayBuffer(v) {
          return _typeof(v) === 'object' && v !== null && v.byteLength !== undefined;
        }

        function isSpace(ch) {
          return ch === 0x20 || ch === 0x09 || ch === 0x0D || ch === 0x0A;
        }

        function createPromiseCapability() {
          var capability = Object.create(null);
          var isSettled = false;
          Object.defineProperty(capability, 'settled', {
            get: function get() {
              return isSettled;
            }
          });
          capability.promise = new Promise(function (resolve, reject) {
            capability.resolve = function (data) {
              isSettled = true;
              resolve(data);
            };

            capability.reject = function (reason) {
              isSettled = true;
              reject(reason);
            };
          });
          return capability;
        }

        var createObjectURL = function createObjectURLClosure() {
          var digits = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
          return function createObjectURL(data, contentType) {
            var forceDataSchema = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

            if (!forceDataSchema && _url_polyfill.URL.createObjectURL) {
              var blob = new Blob([data], {
                type: contentType
              });
              return _url_polyfill.URL.createObjectURL(blob);
            }

            var buffer = 'data:' + contentType + ';base64,';

            for (var i = 0, ii = data.length; i < ii; i += 3) {
              var b1 = data[i] & 0xFF;
              var b2 = data[i + 1] & 0xFF;
              var b3 = data[i + 2] & 0xFF;
              var d1 = b1 >> 2,
                d2 = (b1 & 3) << 4 | b2 >> 4;
              var d3 = i + 1 < ii ? (b2 & 0xF) << 2 | b3 >> 6 : 64;
              var d4 = i + 2 < ii ? b3 & 0x3F : 64;
              buffer += digits[d1] + digits[d2] + digits[d3] + digits[d4];
            }

            return buffer;
          };
        }();

        exports.createObjectURL = createObjectURL;

        /***/
      }),
      /* 2 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        function _typeof(obj) {
          if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof = function _typeof(obj) {
              return typeof obj;
            };
          } else {
            _typeof = function _typeof(obj) {
              return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
          }
          return _typeof(obj);
        }

        var globalScope = __w_pdfjs_require__(3);

        if (!globalScope._pdfjsCompatibilityChecked) {
          globalScope._pdfjsCompatibilityChecked = true;

          var isNodeJS = __w_pdfjs_require__(4);

          var hasDOM = (typeof window === "undefined" ? "undefined" : _typeof(window)) === 'object' && (typeof document === "undefined" ? "undefined" : _typeof(document)) === 'object';

          (function checkNodeBtoa() {
            if (globalScope.btoa || !isNodeJS()) {
              return;
            }

            globalScope.btoa = function (chars) {
              return Buffer.from(chars, 'binary').toString('base64');
            };
          })();

          (function checkNodeAtob() {
            if (globalScope.atob || !isNodeJS()) {
              return;
            }

            globalScope.atob = function (input) {
              return Buffer.from(input, 'base64').toString('binary');
            };
          })();

          (function checkChildNodeRemove() {
            if (!hasDOM) {
              return;
            }

            if (typeof Element.prototype.remove !== 'undefined') {
              return;
            }

            Element.prototype.remove = function () {
              if (this.parentNode) {
                this.parentNode.removeChild(this);
              }
            };
          })();

          (function checkDOMTokenListAddRemove() {
            if (!hasDOM || isNodeJS()) {
              return;
            }

            var div = document.createElement('div');
            div.classList.add('testOne', 'testTwo');

            if (div.classList.contains('testOne') === true && div.classList.contains('testTwo') === true) {
              return;
            }

            var OriginalDOMTokenListAdd = DOMTokenList.prototype.add;
            var OriginalDOMTokenListRemove = DOMTokenList.prototype.remove;

            DOMTokenList.prototype.add = function () {
              for (var _len = arguments.length, tokens = new Array(_len), _key = 0; _key < _len; _key++) {
                tokens[_key] = arguments[_key];
              }

              for (var _i = 0; _i < tokens.length; _i++) {
                var token = tokens[_i];
                OriginalDOMTokenListAdd.call(this, token);
              }
            };

            DOMTokenList.prototype.remove = function () {
              for (var _len2 = arguments.length, tokens = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
                tokens[_key2] = arguments[_key2];
              }

              for (var _i2 = 0; _i2 < tokens.length; _i2++) {
                var token = tokens[_i2];
                OriginalDOMTokenListRemove.call(this, token);
              }
            };
          })();

          (function checkDOMTokenListToggle() {
            if (!hasDOM || isNodeJS()) {
              return;
            }

            var div = document.createElement('div');

            if (div.classList.toggle('test', 0) === false) {
              return;
            }

            DOMTokenList.prototype.toggle = function (token) {
              var force = arguments.length > 1 ? !!arguments[1] : !this.contains(token);
              return this[force ? 'add' : 'remove'](token), force;
            };
          })();

          (function checkStringStartsWith() {
            if (String.prototype.startsWith) {
              return;
            }

            __w_pdfjs_require__(5);
          })();

          (function checkStringEndsWith() {
            if (String.prototype.endsWith) {
              return;
            }

            __w_pdfjs_require__(35);
          })();

          (function checkStringIncludes() {
            if (String.prototype.includes) {
              return;
            }

            __w_pdfjs_require__(37);
          })();

          (function checkArrayIncludes() {
            if (Array.prototype.includes) {
              return;
            }

            __w_pdfjs_require__(39);
          })();

          (function checkArrayFrom() {
            if (Array.from) {
              return;
            }

            __w_pdfjs_require__(46);
          })();

          (function checkObjectAssign() {
            if (Object.assign) {
              return;
            }

            __w_pdfjs_require__(69);
          })();

          (function checkMathLog2() {
            if (Math.log2) {
              return;
            }

            Math.log2 = __w_pdfjs_require__(74);
          })();

          (function checkNumberIsNaN() {
            if (Number.isNaN) {
              return;
            }

            Number.isNaN = __w_pdfjs_require__(76);
          })();

          (function checkNumberIsInteger() {
            if (Number.isInteger) {
              return;
            }

            Number.isInteger = __w_pdfjs_require__(78);
          })();

          (function checkPromise() {
            if (globalScope.Promise && globalScope.Promise.prototype && globalScope.Promise.prototype.finally) {
              return;
            }

            globalScope.Promise = __w_pdfjs_require__(81);
          })();

          (function checkWeakMap() {
            if (globalScope.WeakMap) {
              return;
            }

            globalScope.WeakMap = __w_pdfjs_require__(101);
          })();

          (function checkWeakSet() {
            if (globalScope.WeakSet) {
              return;
            }

            globalScope.WeakSet = __w_pdfjs_require__(118);
          })();

          (function checkStringCodePointAt() {
            if (String.codePointAt) {
              return;
            }

            String.codePointAt = __w_pdfjs_require__(122);
          })();

          (function checkStringFromCodePoint() {
            if (String.fromCodePoint) {
              return;
            }

            String.fromCodePoint = __w_pdfjs_require__(124);
          })();

          (function checkSymbol() {
            if (globalScope.Symbol) {
              return;
            }

            __w_pdfjs_require__(126);
          })();

          (function checkStringPadStart() {
            if (String.prototype.padStart) {
              return;
            }

            __w_pdfjs_require__(133);
          })();

          (function checkStringPadEnd() {
            if (String.prototype.padEnd) {
              return;
            }

            __w_pdfjs_require__(137);
          })();

          (function checkObjectValues() {
            if (Object.values) {
              return;
            }

            Object.values = __w_pdfjs_require__(139);
          })();
        }

        /***/
      }),
      /* 3 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        module.exports = typeof window !== 'undefined' && window.Math === Math ? window : typeof global !== 'undefined' && global.Math === Math ? global : typeof self !== 'undefined' && self.Math === Math ? self : {};

        /***/
      }),
      /* 4 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        function _typeof(obj) {
          if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof = function _typeof(obj) {
              return typeof obj;
            };
          } else {
            _typeof = function _typeof(obj) {
              return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
          }
          return _typeof(obj);
        }

        module.exports = function isNodeJS() {
          return (typeof process === "undefined" ? "undefined" : _typeof(process)) === 'object' && process + '' === '[object process]' && !process.versions['nw'];
        };

        /***/
      }),
      /* 5 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(6);

        module.exports = __w_pdfjs_require__(9).String.startsWith;

        /***/
      }),
      /* 6 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        var toLength = __w_pdfjs_require__(25);

        var context = __w_pdfjs_require__(27);

        var STARTS_WITH = 'startsWith';
        var $startsWith = ''[STARTS_WITH];
        $export($export.P + $export.F * __w_pdfjs_require__(34)(STARTS_WITH), 'String', {
          startsWith: function startsWith(searchString) {
            var that = context(this, searchString, STARTS_WITH);
            var index = toLength(Math.min(arguments.length > 1 ? arguments[1] : undefined, that.length));
            var search = String(searchString);
            return $startsWith ? $startsWith.call(that, search, index) : that.slice(index, index + search.length) === search;
          }
        });

        /***/
      }),
      /* 7 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var global = __w_pdfjs_require__(8);

        var core = __w_pdfjs_require__(9);

        var hide = __w_pdfjs_require__(10);

        var redefine = __w_pdfjs_require__(20);

        var ctx = __w_pdfjs_require__(23);

        var PROTOTYPE = 'prototype';

        var $export = function $export(type, name, source) {
          var IS_FORCED = type & $export.F;
          var IS_GLOBAL = type & $export.G;
          var IS_STATIC = type & $export.S;
          var IS_PROTO = type & $export.P;
          var IS_BIND = type & $export.B;
          var target = IS_GLOBAL ? global : IS_STATIC ? global[name] || (global[name] = {}) : (global[name] || {})[PROTOTYPE];
          var exports = IS_GLOBAL ? core : core[name] || (core[name] = {});
          var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});
          var key, own, out, exp;
          if (IS_GLOBAL) source = name;

          for (key in source) {
            own = !IS_FORCED && target && target[key] !== undefined;
            out = (own ? target : source)[key];
            exp = IS_BIND && own ? ctx(out, global) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out;
            if (target) redefine(target, key, out, type & $export.U);
            if (exports[key] != out) hide(exports, key, exp);
            if (IS_PROTO && expProto[key] != out) expProto[key] = out;
          }
        };

        global.core = core;
        $export.F = 1;
        $export.G = 2;
        $export.S = 4;
        $export.P = 8;
        $export.B = 16;
        $export.W = 32;
        $export.U = 64;
        $export.R = 128;
        module.exports = $export;

        /***/
      }),
      /* 8 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var global = module.exports = typeof window != 'undefined' && window.Math == Math ? window : typeof self != 'undefined' && self.Math == Math ? self : Function('return this')();
        if (typeof __g == 'number') __g = global;

        /***/
      }),
      /* 9 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var core = module.exports = {
          version: '2.6.2'
        };
        if (typeof __e == 'number') __e = core;

        /***/
      }),
      /* 10 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var dP = __w_pdfjs_require__(11);

        var createDesc = __w_pdfjs_require__(19);

        module.exports = __w_pdfjs_require__(15) ? function (object, key, value) {
          return dP.f(object, key, createDesc(1, value));
        } : function (object, key, value) {
          object[key] = value;
          return object;
        };

        /***/
      }),
      /* 11 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var anObject = __w_pdfjs_require__(12);

        var IE8_DOM_DEFINE = __w_pdfjs_require__(14);

        var toPrimitive = __w_pdfjs_require__(18);

        var dP = Object.defineProperty;
        exports.f = __w_pdfjs_require__(15) ? Object.defineProperty : function defineProperty(O, P, Attributes) {
          anObject(O);
          P = toPrimitive(P, true);
          anObject(Attributes);
          if (IE8_DOM_DEFINE) try {
            return dP(O, P, Attributes);
          } catch (e) {
          }
          if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
          if ('value' in Attributes) O[P] = Attributes.value;
          return O;
        };

        /***/
      }),
      /* 12 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var isObject = __w_pdfjs_require__(13);

        module.exports = function (it) {
          if (!isObject(it)) throw TypeError(it + ' is not an object!');
          return it;
        };

        /***/
      }),
      /* 13 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        function _typeof(obj) {
          if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof = function _typeof(obj) {
              return typeof obj;
            };
          } else {
            _typeof = function _typeof(obj) {
              return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
          }
          return _typeof(obj);
        }

        module.exports = function (it) {
          return _typeof(it) === 'object' ? it !== null : typeof it === 'function';
        };

        /***/
      }),
      /* 14 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        module.exports = !__w_pdfjs_require__(15) && !__w_pdfjs_require__(16)(function () {
          return Object.defineProperty(__w_pdfjs_require__(17)('div'), 'a', {
            get: function get() {
              return 7;
            }
          }).a != 7;
        });

        /***/
      }),
      /* 15 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        module.exports = !__w_pdfjs_require__(16)(function () {
          return Object.defineProperty({}, 'a', {
            get: function get() {
              return 7;
            }
          }).a != 7;
        });

        /***/
      }),
      /* 16 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        module.exports = function (exec) {
          try {
            return !!exec();
          } catch (e) {
            return true;
          }
        };

        /***/
      }),
      /* 17 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var isObject = __w_pdfjs_require__(13);

        var document = __w_pdfjs_require__(8).document;

        var is = isObject(document) && isObject(document.createElement);

        module.exports = function (it) {
          return is ? document.createElement(it) : {};
        };

        /***/
      }),
      /* 18 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var isObject = __w_pdfjs_require__(13);

        module.exports = function (it, S) {
          if (!isObject(it)) return it;
          var fn, val;
          if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
          if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;
          if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
          throw TypeError("Can't convert object to primitive value");
        };

        /***/
      }),
      /* 19 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        module.exports = function (bitmap, value) {
          return {
            enumerable: !(bitmap & 1),
            configurable: !(bitmap & 2),
            writable: !(bitmap & 4),
            value: value
          };
        };

        /***/
      }),
      /* 20 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var global = __w_pdfjs_require__(8);

        var hide = __w_pdfjs_require__(10);

        var has = __w_pdfjs_require__(21);

        var SRC = __w_pdfjs_require__(22)('src');

        var TO_STRING = 'toString';
        var $toString = Function[TO_STRING];
        var TPL = ('' + $toString).split(TO_STRING);

        __w_pdfjs_require__(9).inspectSource = function (it) {
          return $toString.call(it);
        };

        (module.exports = function (O, key, val, safe) {
          var isFunction = typeof val == 'function';
          if (isFunction) has(val, 'name') || hide(val, 'name', key);
          if (O[key] === val) return;
          if (isFunction) has(val, SRC) || hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));

          if (O === global) {
            O[key] = val;
          } else if (!safe) {
            delete O[key];
            hide(O, key, val);
          } else if (O[key]) {
            O[key] = val;
          } else {
            hide(O, key, val);
          }
        })(Function.prototype, TO_STRING, function toString() {
          return typeof this == 'function' && this[SRC] || $toString.call(this);
        });

        /***/
      }),
      /* 21 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var hasOwnProperty = {}.hasOwnProperty;

        module.exports = function (it, key) {
          return hasOwnProperty.call(it, key);
        };

        /***/
      }),
      /* 22 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var id = 0;
        var px = Math.random();

        module.exports = function (key) {
          return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
        };

        /***/
      }),
      /* 23 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var aFunction = __w_pdfjs_require__(24);

        module.exports = function (fn, that, length) {
          aFunction(fn);
          if (that === undefined) return fn;

          switch (length) {
            case 1:
              return function (a) {
                return fn.call(that, a);
              };

            case 2:
              return function (a, b) {
                return fn.call(that, a, b);
              };

            case 3:
              return function (a, b, c) {
                return fn.call(that, a, b, c);
              };
          }

          return function () {
            return fn.apply(that, arguments);
          };
        };

        /***/
      }),
      /* 24 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        module.exports = function (it) {
          if (typeof it != 'function') throw TypeError(it + ' is not a function!');
          return it;
        };

        /***/
      }),
      /* 25 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var toInteger = __w_pdfjs_require__(26);

        var min = Math.min;

        module.exports = function (it) {
          return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0;
        };

        /***/
      }),
      /* 26 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var ceil = Math.ceil;
        var floor = Math.floor;

        module.exports = function (it) {
          return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
        };

        /***/
      }),
      /* 27 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var isRegExp = __w_pdfjs_require__(28);

        var defined = __w_pdfjs_require__(33);

        module.exports = function (that, searchString, NAME) {
          if (isRegExp(searchString)) throw TypeError('String#' + NAME + " doesn't accept regex!");
          return String(defined(that));
        };

        /***/
      }),
      /* 28 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var isObject = __w_pdfjs_require__(13);

        var cof = __w_pdfjs_require__(29);

        var MATCH = __w_pdfjs_require__(30)('match');

        module.exports = function (it) {
          var isRegExp;
          return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : cof(it) == 'RegExp');
        };

        /***/
      }),
      /* 29 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var toString = {}.toString;

        module.exports = function (it) {
          return toString.call(it).slice(8, -1);
        };

        /***/
      }),
      /* 30 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var store = __w_pdfjs_require__(31)('wks');

        var uid = __w_pdfjs_require__(22);

        var _Symbol = __w_pdfjs_require__(8).Symbol;

        var USE_SYMBOL = typeof _Symbol == 'function';

        var $exports = module.exports = function (name) {
          return store[name] || (store[name] = USE_SYMBOL && _Symbol[name] || (USE_SYMBOL ? _Symbol : uid)('Symbol.' + name));
        };

        $exports.store = store;

        /***/
      }),
      /* 31 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var core = __w_pdfjs_require__(9);

        var global = __w_pdfjs_require__(8);

        var SHARED = '__core-js_shared__';
        var store = global[SHARED] || (global[SHARED] = {});
        (module.exports = function (key, value) {
          return store[key] || (store[key] = value !== undefined ? value : {});
        })('versions', []).push({
          version: core.version,
          mode: __w_pdfjs_require__(32) ? 'pure' : 'global',
          copyright: '© 2019 Denis Pushkarev (zloirock.ru)'
        });

        /***/
      }),
      /* 32 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        module.exports = false;

        /***/
      }),
      /* 33 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        module.exports = function (it) {
          if (it == undefined) throw TypeError("Can't call method on  " + it);
          return it;
        };

        /***/
      }),
      /* 34 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var MATCH = __w_pdfjs_require__(30)('match');

        module.exports = function (KEY) {
          var re = /./;

          try {
            '/./'[KEY](re);
          } catch (e) {
            try {
              re[MATCH] = false;
              return !'/./'[KEY](re);
            } catch (f) {
            }
          }

          return true;
        };

        /***/
      }),
      /* 35 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(36);

        module.exports = __w_pdfjs_require__(9).String.endsWith;

        /***/
      }),
      /* 36 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        var toLength = __w_pdfjs_require__(25);

        var context = __w_pdfjs_require__(27);

        var ENDS_WITH = 'endsWith';
        var $endsWith = ''[ENDS_WITH];
        $export($export.P + $export.F * __w_pdfjs_require__(34)(ENDS_WITH), 'String', {
          endsWith: function endsWith(searchString) {
            var that = context(this, searchString, ENDS_WITH);
            var endPosition = arguments.length > 1 ? arguments[1] : undefined;
            var len = toLength(that.length);
            var end = endPosition === undefined ? len : Math.min(toLength(endPosition), len);
            var search = String(searchString);
            return $endsWith ? $endsWith.call(that, search, end) : that.slice(end - search.length, end) === search;
          }
        });

        /***/
      }),
      /* 37 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(38);

        module.exports = __w_pdfjs_require__(9).String.includes;

        /***/
      }),
      /* 38 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        var context = __w_pdfjs_require__(27);

        var INCLUDES = 'includes';
        $export($export.P + $export.F * __w_pdfjs_require__(34)(INCLUDES), 'String', {
          includes: function includes(searchString) {
            return !!~context(this, searchString, INCLUDES).indexOf(searchString, arguments.length > 1 ? arguments[1] : undefined);
          }
        });

        /***/
      }),
      /* 39 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(40);

        module.exports = __w_pdfjs_require__(9).Array.includes;

        /***/
      }),
      /* 40 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        var $includes = __w_pdfjs_require__(41)(true);

        $export($export.P, 'Array', {
          includes: function includes(el) {
            return $includes(this, el, arguments.length > 1 ? arguments[1] : undefined);
          }
        });

        __w_pdfjs_require__(45)('includes');

        /***/
      }),
      /* 41 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var toIObject = __w_pdfjs_require__(42);

        var toLength = __w_pdfjs_require__(25);

        var toAbsoluteIndex = __w_pdfjs_require__(44);

        module.exports = function (IS_INCLUDES) {
          return function ($this, el, fromIndex) {
            var O = toIObject($this);
            var length = toLength(O.length);
            var index = toAbsoluteIndex(fromIndex, length);
            var value;
            if (IS_INCLUDES && el != el) while (length > index) {
              value = O[index++];
              if (value != value) return true;
            } else for (; length > index; index++) {
              if (IS_INCLUDES || index in O) {
                if (O[index] === el) return IS_INCLUDES || index || 0;
              }
            }
            return !IS_INCLUDES && -1;
          };
        };

        /***/
      }),
      /* 42 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var IObject = __w_pdfjs_require__(43);

        var defined = __w_pdfjs_require__(33);

        module.exports = function (it) {
          return IObject(defined(it));
        };

        /***/
      }),
      /* 43 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var cof = __w_pdfjs_require__(29);

        module.exports = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
          return cof(it) == 'String' ? it.split('') : Object(it);
        };

        /***/
      }),
      /* 44 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var toInteger = __w_pdfjs_require__(26);

        var max = Math.max;
        var min = Math.min;

        module.exports = function (index, length) {
          index = toInteger(index);
          return index < 0 ? max(index + length, 0) : min(index, length);
        };

        /***/
      }),
      /* 45 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var UNSCOPABLES = __w_pdfjs_require__(30)('unscopables');

        var ArrayProto = Array.prototype;
        if (ArrayProto[UNSCOPABLES] == undefined) __w_pdfjs_require__(10)(ArrayProto, UNSCOPABLES, {});

        module.exports = function (key) {
          ArrayProto[UNSCOPABLES][key] = true;
        };

        /***/
      }),
      /* 46 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(47);

        __w_pdfjs_require__(62);

        module.exports = __w_pdfjs_require__(9).Array.from;

        /***/
      }),
      /* 47 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $at = __w_pdfjs_require__(48)(true);

        __w_pdfjs_require__(49)(String, 'String', function (iterated) {
          this._t = String(iterated);
          this._i = 0;
        }, function () {
          var O = this._t;
          var index = this._i;
          var point;
          if (index >= O.length) return {
            value: undefined,
            done: true
          };
          point = $at(O, index);
          this._i += point.length;
          return {
            value: point,
            done: false
          };
        });

        /***/
      }),
      /* 48 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var toInteger = __w_pdfjs_require__(26);

        var defined = __w_pdfjs_require__(33);

        module.exports = function (TO_STRING) {
          return function (that, pos) {
            var s = String(defined(that));
            var i = toInteger(pos);
            var l = s.length;
            var a, b;
            if (i < 0 || i >= l) return TO_STRING ? '' : undefined;
            a = s.charCodeAt(i);
            return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff ? TO_STRING ? s.charAt(i) : a : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
          };
        };

        /***/
      }),
      /* 49 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var LIBRARY = __w_pdfjs_require__(32);

        var $export = __w_pdfjs_require__(7);

        var redefine = __w_pdfjs_require__(20);

        var hide = __w_pdfjs_require__(10);

        var Iterators = __w_pdfjs_require__(50);

        var $iterCreate = __w_pdfjs_require__(51);

        var setToStringTag = __w_pdfjs_require__(59);

        var getPrototypeOf = __w_pdfjs_require__(60);

        var ITERATOR = __w_pdfjs_require__(30)('iterator');

        var BUGGY = !([].keys && 'next' in [].keys());
        var FF_ITERATOR = '@@iterator';
        var KEYS = 'keys';
        var VALUES = 'values';

        var returnThis = function returnThis() {
          return this;
        };

        module.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {
          $iterCreate(Constructor, NAME, next);

          var getMethod = function getMethod(kind) {
            if (!BUGGY && kind in proto) return proto[kind];

            switch (kind) {
              case KEYS:
                return function keys() {
                  return new Constructor(this, kind);
                };

              case VALUES:
                return function values() {
                  return new Constructor(this, kind);
                };
            }

            return function entries() {
              return new Constructor(this, kind);
            };
          };

          var TAG = NAME + ' Iterator';
          var DEF_VALUES = DEFAULT == VALUES;
          var VALUES_BUG = false;
          var proto = Base.prototype;
          var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];
          var $default = $native || getMethod(DEFAULT);
          var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;
          var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;
          var methods, key, IteratorPrototype;

          if ($anyNative) {
            IteratorPrototype = getPrototypeOf($anyNative.call(new Base()));

            if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {
              setToStringTag(IteratorPrototype, TAG, true);
              if (!LIBRARY && typeof IteratorPrototype[ITERATOR] != 'function') hide(IteratorPrototype, ITERATOR, returnThis);
            }
          }

          if (DEF_VALUES && $native && $native.name !== VALUES) {
            VALUES_BUG = true;

            $default = function values() {
              return $native.call(this);
            };
          }

          if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {
            hide(proto, ITERATOR, $default);
          }

          Iterators[NAME] = $default;
          Iterators[TAG] = returnThis;

          if (DEFAULT) {
            methods = {
              values: DEF_VALUES ? $default : getMethod(VALUES),
              keys: IS_SET ? $default : getMethod(KEYS),
              entries: $entries
            };
            if (FORCED) for (key in methods) {
              if (!(key in proto)) redefine(proto, key, methods[key]);
            } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);
          }

          return methods;
        };

        /***/
      }),
      /* 50 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        module.exports = {};

        /***/
      }),
      /* 51 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var create = __w_pdfjs_require__(52);

        var descriptor = __w_pdfjs_require__(19);

        var setToStringTag = __w_pdfjs_require__(59);

        var IteratorPrototype = {};

        __w_pdfjs_require__(10)(IteratorPrototype, __w_pdfjs_require__(30)('iterator'), function () {
          return this;
        });

        module.exports = function (Constructor, NAME, next) {
          Constructor.prototype = create(IteratorPrototype, {
            next: descriptor(1, next)
          });
          setToStringTag(Constructor, NAME + ' Iterator');
        };

        /***/
      }),
      /* 52 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var anObject = __w_pdfjs_require__(12);

        var dPs = __w_pdfjs_require__(53);

        var enumBugKeys = __w_pdfjs_require__(57);

        var IE_PROTO = __w_pdfjs_require__(56)('IE_PROTO');

        var Empty = function Empty() {
        };

        var PROTOTYPE = 'prototype';

        var _createDict = function createDict() {
          var iframe = __w_pdfjs_require__(17)('iframe');

          var i = enumBugKeys.length;
          var lt = '<';
          var gt = '>';
          var iframeDocument;
          iframe.style.display = 'none';

          __w_pdfjs_require__(58).appendChild(iframe);

          iframe.src = 'javascript:';
          iframeDocument = iframe.contentWindow.document;
          iframeDocument.open();
          iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);
          iframeDocument.close();
          _createDict = iframeDocument.F;

          while (i--) {
            delete _createDict[PROTOTYPE][enumBugKeys[i]];
          }

          return _createDict();
        };

        module.exports = Object.create || function create(O, Properties) {
          var result;

          if (O !== null) {
            Empty[PROTOTYPE] = anObject(O);
            result = new Empty();
            Empty[PROTOTYPE] = null;
            result[IE_PROTO] = O;
          } else result = _createDict();

          return Properties === undefined ? result : dPs(result, Properties);
        };

        /***/
      }),
      /* 53 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var dP = __w_pdfjs_require__(11);

        var anObject = __w_pdfjs_require__(12);

        var getKeys = __w_pdfjs_require__(54);

        module.exports = __w_pdfjs_require__(15) ? Object.defineProperties : function defineProperties(O, Properties) {
          anObject(O);
          var keys = getKeys(Properties);
          var length = keys.length;
          var i = 0;
          var P;

          while (length > i) {
            dP.f(O, P = keys[i++], Properties[P]);
          }

          return O;
        };

        /***/
      }),
      /* 54 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $keys = __w_pdfjs_require__(55);

        var enumBugKeys = __w_pdfjs_require__(57);

        module.exports = Object.keys || function keys(O) {
          return $keys(O, enumBugKeys);
        };

        /***/
      }),
      /* 55 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var has = __w_pdfjs_require__(21);

        var toIObject = __w_pdfjs_require__(42);

        var arrayIndexOf = __w_pdfjs_require__(41)(false);

        var IE_PROTO = __w_pdfjs_require__(56)('IE_PROTO');

        module.exports = function (object, names) {
          var O = toIObject(object);
          var i = 0;
          var result = [];
          var key;

          for (key in O) {
            if (key != IE_PROTO) has(O, key) && result.push(key);
          }

          while (names.length > i) {
            if (has(O, key = names[i++])) {
              ~arrayIndexOf(result, key) || result.push(key);
            }
          }

          return result;
        };

        /***/
      }),
      /* 56 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var shared = __w_pdfjs_require__(31)('keys');

        var uid = __w_pdfjs_require__(22);

        module.exports = function (key) {
          return shared[key] || (shared[key] = uid(key));
        };

        /***/
      }),
      /* 57 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        module.exports = 'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'.split(',');

        /***/
      }),
      /* 58 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var document = __w_pdfjs_require__(8).document;

        module.exports = document && document.documentElement;

        /***/
      }),
      /* 59 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var def = __w_pdfjs_require__(11).f;

        var has = __w_pdfjs_require__(21);

        var TAG = __w_pdfjs_require__(30)('toStringTag');

        module.exports = function (it, tag, stat) {
          if (it && !has(it = stat ? it : it.prototype, TAG)) def(it, TAG, {
            configurable: true,
            value: tag
          });
        };

        /***/
      }),
      /* 60 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var has = __w_pdfjs_require__(21);

        var toObject = __w_pdfjs_require__(61);

        var IE_PROTO = __w_pdfjs_require__(56)('IE_PROTO');

        var ObjectProto = Object.prototype;

        module.exports = Object.getPrototypeOf || function (O) {
          O = toObject(O);
          if (has(O, IE_PROTO)) return O[IE_PROTO];

          if (typeof O.constructor == 'function' && O instanceof O.constructor) {
            return O.constructor.prototype;
          }

          return O instanceof Object ? ObjectProto : null;
        };

        /***/
      }),
      /* 61 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var defined = __w_pdfjs_require__(33);

        module.exports = function (it) {
          return Object(defined(it));
        };

        /***/
      }),
      /* 62 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var ctx = __w_pdfjs_require__(23);

        var $export = __w_pdfjs_require__(7);

        var toObject = __w_pdfjs_require__(61);

        var call = __w_pdfjs_require__(63);

        var isArrayIter = __w_pdfjs_require__(64);

        var toLength = __w_pdfjs_require__(25);

        var createProperty = __w_pdfjs_require__(65);

        var getIterFn = __w_pdfjs_require__(66);

        $export($export.S + $export.F * !__w_pdfjs_require__(68)(function (iter) {
          Array.from(iter);
        }), 'Array', {
          from: function from(arrayLike) {
            var O = toObject(arrayLike);
            var C = typeof this == 'function' ? this : Array;
            var aLen = arguments.length;
            var mapfn = aLen > 1 ? arguments[1] : undefined;
            var mapping = mapfn !== undefined;
            var index = 0;
            var iterFn = getIterFn(O);
            var length, result, step, iterator;
            if (mapping) mapfn = ctx(mapfn, aLen > 2 ? arguments[2] : undefined, 2);

            if (iterFn != undefined && !(C == Array && isArrayIter(iterFn))) {
              for (iterator = iterFn.call(O), result = new C(); !(step = iterator.next()).done; index++) {
                createProperty(result, index, mapping ? call(iterator, mapfn, [step.value, index], true) : step.value);
              }
            } else {
              length = toLength(O.length);

              for (result = new C(length); length > index; index++) {
                createProperty(result, index, mapping ? mapfn(O[index], index) : O[index]);
              }
            }

            result.length = index;
            return result;
          }
        });

        /***/
      }),
      /* 63 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var anObject = __w_pdfjs_require__(12);

        module.exports = function (iterator, fn, value, entries) {
          try {
            return entries ? fn(anObject(value)[0], value[1]) : fn(value);
          } catch (e) {
            var ret = iterator['return'];
            if (ret !== undefined) anObject(ret.call(iterator));
            throw e;
          }
        };

        /***/
      }),
      /* 64 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var Iterators = __w_pdfjs_require__(50);

        var ITERATOR = __w_pdfjs_require__(30)('iterator');

        var ArrayProto = Array.prototype;

        module.exports = function (it) {
          return it !== undefined && (Iterators.Array === it || ArrayProto[ITERATOR] === it);
        };

        /***/
      }),
      /* 65 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $defineProperty = __w_pdfjs_require__(11);

        var createDesc = __w_pdfjs_require__(19);

        module.exports = function (object, index, value) {
          if (index in object) $defineProperty.f(object, index, createDesc(0, value)); else object[index] = value;
        };

        /***/
      }),
      /* 66 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var classof = __w_pdfjs_require__(67);

        var ITERATOR = __w_pdfjs_require__(30)('iterator');

        var Iterators = __w_pdfjs_require__(50);

        module.exports = __w_pdfjs_require__(9).getIteratorMethod = function (it) {
          if (it != undefined) return it[ITERATOR] || it['@@iterator'] || Iterators[classof(it)];
        };

        /***/
      }),
      /* 67 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var cof = __w_pdfjs_require__(29);

        var TAG = __w_pdfjs_require__(30)('toStringTag');

        var ARG = cof(function () {
          return arguments;
        }()) == 'Arguments';

        var tryGet = function tryGet(it, key) {
          try {
            return it[key];
          } catch (e) {
          }
        };

        module.exports = function (it) {
          var O, T, B;
          return it === undefined ? 'Undefined' : it === null ? 'Null' : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T : ARG ? cof(O) : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
        };

        /***/
      }),
      /* 68 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var ITERATOR = __w_pdfjs_require__(30)('iterator');

        var SAFE_CLOSING = false;

        try {
          var riter = [7][ITERATOR]();

          riter['return'] = function () {
            SAFE_CLOSING = true;
          };

          Array.from(riter, function () {
            throw 2;
          });
        } catch (e) {
        }

        module.exports = function (exec, skipClosing) {
          if (!skipClosing && !SAFE_CLOSING) return false;
          var safe = false;

          try {
            var arr = [7];
            var iter = arr[ITERATOR]();

            iter.next = function () {
              return {
                done: safe = true
              };
            };

            arr[ITERATOR] = function () {
              return iter;
            };

            exec(arr);
          } catch (e) {
          }

          return safe;
        };

        /***/
      }),
      /* 69 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(70);

        module.exports = __w_pdfjs_require__(9).Object.assign;

        /***/
      }),
      /* 70 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        $export($export.S + $export.F, 'Object', {
          assign: __w_pdfjs_require__(71)
        });

        /***/
      }),
      /* 71 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var getKeys = __w_pdfjs_require__(54);

        var gOPS = __w_pdfjs_require__(72);

        var pIE = __w_pdfjs_require__(73);

        var toObject = __w_pdfjs_require__(61);

        var IObject = __w_pdfjs_require__(43);

        var $assign = Object.assign;
        module.exports = !$assign || __w_pdfjs_require__(16)(function () {
          var A = {};
          var B = {};
          var S = Symbol();
          var K = 'abcdefghijklmnopqrst';
          A[S] = 7;
          K.split('').forEach(function (k) {
            B[k] = k;
          });
          return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;
        }) ? function assign(target, source) {
          var T = toObject(target);
          var aLen = arguments.length;
          var index = 1;
          var getSymbols = gOPS.f;
          var isEnum = pIE.f;

          while (aLen > index) {
            var S = IObject(arguments[index++]);
            var keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S);
            var length = keys.length;
            var j = 0;
            var key;

            while (length > j) {
              if (isEnum.call(S, key = keys[j++])) T[key] = S[key];
            }
          }

          return T;
        } : $assign;

        /***/
      }),
      /* 72 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        exports.f = Object.getOwnPropertySymbols;

        /***/
      }),
      /* 73 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        exports.f = {}.propertyIsEnumerable;

        /***/
      }),
      /* 74 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(75);

        module.exports = __w_pdfjs_require__(9).Math.log2;

        /***/
      }),
      /* 75 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        $export($export.S, 'Math', {
          log2: function log2(x) {
            return Math.log(x) / Math.LN2;
          }
        });

        /***/
      }),
      /* 76 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(77);

        module.exports = __w_pdfjs_require__(9).Number.isNaN;

        /***/
      }),
      /* 77 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        $export($export.S, 'Number', {
          isNaN: function isNaN(number) {
            return number != number;
          }
        });

        /***/
      }),
      /* 78 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(79);

        module.exports = __w_pdfjs_require__(9).Number.isInteger;

        /***/
      }),
      /* 79 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        $export($export.S, 'Number', {
          isInteger: __w_pdfjs_require__(80)
        });

        /***/
      }),
      /* 80 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var isObject = __w_pdfjs_require__(13);

        var floor = Math.floor;

        module.exports = function isInteger(it) {
          return !isObject(it) && isFinite(it) && floor(it) === it;
        };

        /***/
      }),
      /* 81 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(82);

        __w_pdfjs_require__(47);

        __w_pdfjs_require__(83);

        __w_pdfjs_require__(86);

        __w_pdfjs_require__(99);

        __w_pdfjs_require__(100);

        module.exports = __w_pdfjs_require__(9).Promise;

        /***/
      }),
      /* 82 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var classof = __w_pdfjs_require__(67);

        var test = {};
        test[__w_pdfjs_require__(30)('toStringTag')] = 'z';

        if (test + '' != '[object z]') {
          __w_pdfjs_require__(20)(Object.prototype, 'toString', function toString() {
            return '[object ' + classof(this) + ']';
          }, true);
        }

        /***/
      }),
      /* 83 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $iterators = __w_pdfjs_require__(84);

        var getKeys = __w_pdfjs_require__(54);

        var redefine = __w_pdfjs_require__(20);

        var global = __w_pdfjs_require__(8);

        var hide = __w_pdfjs_require__(10);

        var Iterators = __w_pdfjs_require__(50);

        var wks = __w_pdfjs_require__(30);

        var ITERATOR = wks('iterator');
        var TO_STRING_TAG = wks('toStringTag');
        var ArrayValues = Iterators.Array;
        var DOMIterables = {
          CSSRuleList: true,
          CSSStyleDeclaration: false,
          CSSValueList: false,
          ClientRectList: false,
          DOMRectList: false,
          DOMStringList: false,
          DOMTokenList: true,
          DataTransferItemList: false,
          FileList: false,
          HTMLAllCollection: false,
          HTMLCollection: false,
          HTMLFormElement: false,
          HTMLSelectElement: false,
          MediaList: true,
          MimeTypeArray: false,
          NamedNodeMap: false,
          NodeList: true,
          PaintRequestList: false,
          Plugin: false,
          PluginArray: false,
          SVGLengthList: false,
          SVGNumberList: false,
          SVGPathSegList: false,
          SVGPointList: false,
          SVGStringList: false,
          SVGTransformList: false,
          SourceBufferList: false,
          StyleSheetList: true,
          TextTrackCueList: false,
          TextTrackList: false,
          TouchList: false
        };

        for (var collections = getKeys(DOMIterables), i = 0; i < collections.length; i++) {
          var NAME = collections[i];
          var explicit = DOMIterables[NAME];
          var Collection = global[NAME];
          var proto = Collection && Collection.prototype;
          var key;

          if (proto) {
            if (!proto[ITERATOR]) hide(proto, ITERATOR, ArrayValues);
            if (!proto[TO_STRING_TAG]) hide(proto, TO_STRING_TAG, NAME);
            Iterators[NAME] = ArrayValues;
            if (explicit) for (key in $iterators) {
              if (!proto[key]) redefine(proto, key, $iterators[key], true);
            }
          }
        }

        /***/
      }),
      /* 84 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var addToUnscopables = __w_pdfjs_require__(45);

        var step = __w_pdfjs_require__(85);

        var Iterators = __w_pdfjs_require__(50);

        var toIObject = __w_pdfjs_require__(42);

        module.exports = __w_pdfjs_require__(49)(Array, 'Array', function (iterated, kind) {
          this._t = toIObject(iterated);
          this._i = 0;
          this._k = kind;
        }, function () {
          var O = this._t;
          var kind = this._k;
          var index = this._i++;

          if (!O || index >= O.length) {
            this._t = undefined;
            return step(1);
          }

          if (kind == 'keys') return step(0, index);
          if (kind == 'values') return step(0, O[index]);
          return step(0, [index, O[index]]);
        }, 'values');
        Iterators.Arguments = Iterators.Array;
        addToUnscopables('keys');
        addToUnscopables('values');
        addToUnscopables('entries');

        /***/
      }),
      /* 85 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        module.exports = function (done, value) {
          return {
            value: value,
            done: !!done
          };
        };

        /***/
      }),
      /* 86 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var LIBRARY = __w_pdfjs_require__(32);

        var global = __w_pdfjs_require__(8);

        var ctx = __w_pdfjs_require__(23);

        var classof = __w_pdfjs_require__(67);

        var $export = __w_pdfjs_require__(7);

        var isObject = __w_pdfjs_require__(13);

        var aFunction = __w_pdfjs_require__(24);

        var anInstance = __w_pdfjs_require__(87);

        var forOf = __w_pdfjs_require__(88);

        var speciesConstructor = __w_pdfjs_require__(89);

        var task = __w_pdfjs_require__(90).set;

        var microtask = __w_pdfjs_require__(92)();

        var newPromiseCapabilityModule = __w_pdfjs_require__(93);

        var perform = __w_pdfjs_require__(94);

        var userAgent = __w_pdfjs_require__(95);

        var promiseResolve = __w_pdfjs_require__(96);

        var PROMISE = 'Promise';
        var TypeError = global.TypeError;
        var process = global.process;
        var versions = process && process.versions;
        var v8 = versions && versions.v8 || '';
        var $Promise = global[PROMISE];
        var isNode = classof(process) == 'process';

        var empty = function empty() {
        };

        var Internal, newGenericPromiseCapability, OwnPromiseCapability, Wrapper;
        var newPromiseCapability = newGenericPromiseCapability = newPromiseCapabilityModule.f;
        var USE_NATIVE = !!function () {
          try {
            var promise = $Promise.resolve(1);

            var FakePromise = (promise.constructor = {})[__w_pdfjs_require__(30)('species')] = function (exec) {
              exec(empty, empty);
            };

            return (isNode || typeof PromiseRejectionEvent == 'function') && promise.then(empty) instanceof FakePromise && v8.indexOf('6.6') !== 0 && userAgent.indexOf('Chrome/66') === -1;
          } catch (e) {
          }
        }();

        var isThenable = function isThenable(it) {
          var then;
          return isObject(it) && typeof (then = it.then) == 'function' ? then : false;
        };

        var notify = function notify(promise, isReject) {
          if (promise._n) return;
          promise._n = true;
          var chain = promise._c;
          microtask(function () {
            var value = promise._v;
            var ok = promise._s == 1;
            var i = 0;

            var run = function run(reaction) {
              var handler = ok ? reaction.ok : reaction.fail;
              var resolve = reaction.resolve;
              var reject = reaction.reject;
              var domain = reaction.domain;
              var result, then, exited;

              try {
                if (handler) {
                  if (!ok) {
                    if (promise._h == 2) onHandleUnhandled(promise);
                    promise._h = 1;
                  }

                  if (handler === true) result = value; else {
                    if (domain) domain.enter();
                    result = handler(value);

                    if (domain) {
                      domain.exit();
                      exited = true;
                    }
                  }

                  if (result === reaction.promise) {
                    reject(TypeError('Promise-chain cycle'));
                  } else if (then = isThenable(result)) {
                    then.call(result, resolve, reject);
                  } else resolve(result);
                } else reject(value);
              } catch (e) {
                if (domain && !exited) domain.exit();
                reject(e);
              }
            };

            while (chain.length > i) {
              run(chain[i++]);
            }

            promise._c = [];
            promise._n = false;
            if (isReject && !promise._h) onUnhandled(promise);
          });
        };

        var onUnhandled = function onUnhandled(promise) {
          task.call(global, function () {
            var value = promise._v;
            var unhandled = isUnhandled(promise);
            var result, handler, console;

            if (unhandled) {
              result = perform(function () {
                if (isNode) {
                  process.emit('unhandledRejection', value, promise);
                } else if (handler = global.onunhandledrejection) {
                  handler({
                    promise: promise,
                    reason: value
                  });
                } else if ((console = global.console) && console.error) {
                  console.error('Unhandled promise rejection', value);
                }
              });
              promise._h = isNode || isUnhandled(promise) ? 2 : 1;
            }

            promise._a = undefined;
            if (unhandled && result.e) throw result.v;
          });
        };

        var isUnhandled = function isUnhandled(promise) {
          return promise._h !== 1 && (promise._a || promise._c).length === 0;
        };

        var onHandleUnhandled = function onHandleUnhandled(promise) {
          task.call(global, function () {
            var handler;

            if (isNode) {
              process.emit('rejectionHandled', promise);
            } else if (handler = global.onrejectionhandled) {
              handler({
                promise: promise,
                reason: promise._v
              });
            }
          });
        };

        var $reject = function $reject(value) {
          var promise = this;
          if (promise._d) return;
          promise._d = true;
          promise = promise._w || promise;
          promise._v = value;
          promise._s = 2;
          if (!promise._a) promise._a = promise._c.slice();
          notify(promise, true);
        };

        var $resolve = function $resolve(value) {
          var promise = this;
          var then;
          if (promise._d) return;
          promise._d = true;
          promise = promise._w || promise;

          try {
            if (promise === value) throw TypeError("Promise can't be resolved itself");

            if (then = isThenable(value)) {
              microtask(function () {
                var wrapper = {
                  _w: promise,
                  _d: false
                };

                try {
                  then.call(value, ctx($resolve, wrapper, 1), ctx($reject, wrapper, 1));
                } catch (e) {
                  $reject.call(wrapper, e);
                }
              });
            } else {
              promise._v = value;
              promise._s = 1;
              notify(promise, false);
            }
          } catch (e) {
            $reject.call({
              _w: promise,
              _d: false
            }, e);
          }
        };

        if (!USE_NATIVE) {
          $Promise = function Promise(executor) {
            anInstance(this, $Promise, PROMISE, '_h');
            aFunction(executor);
            Internal.call(this);

            try {
              executor(ctx($resolve, this, 1), ctx($reject, this, 1));
            } catch (err) {
              $reject.call(this, err);
            }
          };

          Internal = function Promise(executor) {
            this._c = [];
            this._a = undefined;
            this._s = 0;
            this._d = false;
            this._v = undefined;
            this._h = 0;
            this._n = false;
          };

          Internal.prototype = __w_pdfjs_require__(97)($Promise.prototype, {
            then: function then(onFulfilled, onRejected) {
              var reaction = newPromiseCapability(speciesConstructor(this, $Promise));
              reaction.ok = typeof onFulfilled == 'function' ? onFulfilled : true;
              reaction.fail = typeof onRejected == 'function' && onRejected;
              reaction.domain = isNode ? process.domain : undefined;

              this._c.push(reaction);

              if (this._a) this._a.push(reaction);
              if (this._s) notify(this, false);
              return reaction.promise;
            },
            'catch': function _catch(onRejected) {
              return this.then(undefined, onRejected);
            }
          });

          OwnPromiseCapability = function OwnPromiseCapability() {
            var promise = new Internal();
            this.promise = promise;
            this.resolve = ctx($resolve, promise, 1);
            this.reject = ctx($reject, promise, 1);
          };

          newPromiseCapabilityModule.f = newPromiseCapability = function newPromiseCapability(C) {
            return C === $Promise || C === Wrapper ? new OwnPromiseCapability(C) : newGenericPromiseCapability(C);
          };
        }

        $export($export.G + $export.W + $export.F * !USE_NATIVE, {
          Promise: $Promise
        });

        __w_pdfjs_require__(59)($Promise, PROMISE);

        __w_pdfjs_require__(98)(PROMISE);

        Wrapper = __w_pdfjs_require__(9)[PROMISE];
        $export($export.S + $export.F * !USE_NATIVE, PROMISE, {
          reject: function reject(r) {
            var capability = newPromiseCapability(this);
            var $$reject = capability.reject;
            $$reject(r);
            return capability.promise;
          }
        });
        $export($export.S + $export.F * (LIBRARY || !USE_NATIVE), PROMISE, {
          resolve: function resolve(x) {
            return promiseResolve(LIBRARY && this === Wrapper ? $Promise : this, x);
          }
        });
        $export($export.S + $export.F * !(USE_NATIVE && __w_pdfjs_require__(68)(function (iter) {
          $Promise.all(iter)['catch'](empty);
        })), PROMISE, {
          all: function all(iterable) {
            var C = this;
            var capability = newPromiseCapability(C);
            var resolve = capability.resolve;
            var reject = capability.reject;
            var result = perform(function () {
              var values = [];
              var index = 0;
              var remaining = 1;
              forOf(iterable, false, function (promise) {
                var $index = index++;
                var alreadyCalled = false;
                values.push(undefined);
                remaining++;
                C.resolve(promise).then(function (value) {
                  if (alreadyCalled) return;
                  alreadyCalled = true;
                  values[$index] = value;
                  --remaining || resolve(values);
                }, reject);
              });
              --remaining || resolve(values);
            });
            if (result.e) reject(result.v);
            return capability.promise;
          },
          race: function race(iterable) {
            var C = this;
            var capability = newPromiseCapability(C);
            var reject = capability.reject;
            var result = perform(function () {
              forOf(iterable, false, function (promise) {
                C.resolve(promise).then(capability.resolve, reject);
              });
            });
            if (result.e) reject(result.v);
            return capability.promise;
          }
        });

        /***/
      }),
      /* 87 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        module.exports = function (it, Constructor, name, forbiddenField) {
          if (!(it instanceof Constructor) || forbiddenField !== undefined && forbiddenField in it) {
            throw TypeError(name + ': incorrect invocation!');
          }

          return it;
        };

        /***/
      }),
      /* 88 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var ctx = __w_pdfjs_require__(23);

        var call = __w_pdfjs_require__(63);

        var isArrayIter = __w_pdfjs_require__(64);

        var anObject = __w_pdfjs_require__(12);

        var toLength = __w_pdfjs_require__(25);

        var getIterFn = __w_pdfjs_require__(66);

        var BREAK = {};
        var RETURN = {};

        var _exports = module.exports = function (iterable, entries, fn, that, ITERATOR) {
          var iterFn = ITERATOR ? function () {
            return iterable;
          } : getIterFn(iterable);
          var f = ctx(fn, that, entries ? 2 : 1);
          var index = 0;
          var length, step, iterator, result;
          if (typeof iterFn != 'function') throw TypeError(iterable + ' is not iterable!');
          if (isArrayIter(iterFn)) for (length = toLength(iterable.length); length > index; index++) {
            result = entries ? f(anObject(step = iterable[index])[0], step[1]) : f(iterable[index]);
            if (result === BREAK || result === RETURN) return result;
          } else for (iterator = iterFn.call(iterable); !(step = iterator.next()).done;) {
            result = call(iterator, f, step.value, entries);
            if (result === BREAK || result === RETURN) return result;
          }
        };

        _exports.BREAK = BREAK;
        _exports.RETURN = RETURN;

        /***/
      }),
      /* 89 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var anObject = __w_pdfjs_require__(12);

        var aFunction = __w_pdfjs_require__(24);

        var SPECIES = __w_pdfjs_require__(30)('species');

        module.exports = function (O, D) {
          var C = anObject(O).constructor;
          var S;
          return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? D : aFunction(S);
        };

        /***/
      }),
      /* 90 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var ctx = __w_pdfjs_require__(23);

        var invoke = __w_pdfjs_require__(91);

        var html = __w_pdfjs_require__(58);

        var cel = __w_pdfjs_require__(17);

        var global = __w_pdfjs_require__(8);

        var process = global.process;
        var setTask = global.setImmediate;
        var clearTask = global.clearImmediate;
        var MessageChannel = global.MessageChannel;
        var Dispatch = global.Dispatch;
        var counter = 0;
        var queue = {};
        var ONREADYSTATECHANGE = 'onreadystatechange';
        var defer, channel, port;

        var run = function run() {
          var id = +this;

          if (queue.hasOwnProperty(id)) {
            var fn = queue[id];
            delete queue[id];
            fn();
          }
        };

        var listener = function listener(event) {
          run.call(event.data);
        };

        if (!setTask || !clearTask) {
          setTask = function setImmediate(fn) {
            var args = [];
            var i = 1;

            while (arguments.length > i) {
              args.push(arguments[i++]);
            }

            queue[++counter] = function () {
              invoke(typeof fn == 'function' ? fn : Function(fn), args);
            };

            defer(counter);
            return counter;
          };

          clearTask = function clearImmediate(id) {
            delete queue[id];
          };

          if (__w_pdfjs_require__(29)(process) == 'process') {
            defer = function defer(id) {
              process.nextTick(ctx(run, id, 1));
            };
          } else if (Dispatch && Dispatch.now) {
            defer = function defer(id) {
              Dispatch.now(ctx(run, id, 1));
            };
          } else if (MessageChannel) {
            channel = new MessageChannel();
            port = channel.port2;
            channel.port1.onmessage = listener;
            defer = ctx(port.postMessage, port, 1);
          } else if (global.addEventListener && typeof postMessage == 'function' && !global.importScripts) {
            defer = function defer(id) {
              global.postMessage(id + '', '*');
            };

            global.addEventListener('message', listener, false);
          } else if (ONREADYSTATECHANGE in cel('script')) {
            defer = function defer(id) {
              html.appendChild(cel('script'))[ONREADYSTATECHANGE] = function () {
                html.removeChild(this);
                run.call(id);
              };
            };
          } else {
            defer = function defer(id) {
              setTimeout(ctx(run, id, 1), 0);
            };
          }
        }

        module.exports = {
          set: setTask,
          clear: clearTask
        };

        /***/
      }),
      /* 91 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        module.exports = function (fn, args, that) {
          var un = that === undefined;

          switch (args.length) {
            case 0:
              return un ? fn() : fn.call(that);

            case 1:
              return un ? fn(args[0]) : fn.call(that, args[0]);

            case 2:
              return un ? fn(args[0], args[1]) : fn.call(that, args[0], args[1]);

            case 3:
              return un ? fn(args[0], args[1], args[2]) : fn.call(that, args[0], args[1], args[2]);

            case 4:
              return un ? fn(args[0], args[1], args[2], args[3]) : fn.call(that, args[0], args[1], args[2], args[3]);
          }

          return fn.apply(that, args);
        };

        /***/
      }),
      /* 92 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var global = __w_pdfjs_require__(8);

        var macrotask = __w_pdfjs_require__(90).set;

        var Observer = global.MutationObserver || global.WebKitMutationObserver;
        var process = global.process;
        var Promise = global.Promise;
        var isNode = __w_pdfjs_require__(29)(process) == 'process';

        module.exports = function () {
          var head, last, notify;

          var flush = function flush() {
            var parent, fn;
            if (isNode && (parent = process.domain)) parent.exit();

            while (head) {
              fn = head.fn;
              head = head.next;

              try {
                fn();
              } catch (e) {
                if (head) notify(); else last = undefined;
                throw e;
              }
            }

            last = undefined;
            if (parent) parent.enter();
          };

          if (isNode) {
            notify = function notify() {
              process.nextTick(flush);
            };
          } else if (Observer && !(global.navigator && global.navigator.standalone)) {
            var toggle = true;
            var node = document.createTextNode('');
            new Observer(flush).observe(node, {
              characterData: true
            });

            notify = function notify() {
              node.data = toggle = !toggle;
            };
          } else if (Promise && Promise.resolve) {
            var promise = Promise.resolve(undefined);

            notify = function notify() {
              promise.then(flush);
            };
          } else {
            notify = function notify() {
              macrotask.call(global, flush);
            };
          }

          return function (fn) {
            var task = {
              fn: fn,
              next: undefined
            };
            if (last) last.next = task;

            if (!head) {
              head = task;
              notify();
            }

            last = task;
          };
        };

        /***/
      }),
      /* 93 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var aFunction = __w_pdfjs_require__(24);

        function PromiseCapability(C) {
          var resolve, reject;
          this.promise = new C(function ($$resolve, $$reject) {
            if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');
            resolve = $$resolve;
            reject = $$reject;
          });
          this.resolve = aFunction(resolve);
          this.reject = aFunction(reject);
        }

        module.exports.f = function (C) {
          return new PromiseCapability(C);
        };

        /***/
      }),
      /* 94 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        module.exports = function (exec) {
          try {
            return {
              e: false,
              v: exec()
            };
          } catch (e) {
            return {
              e: true,
              v: e
            };
          }
        };

        /***/
      }),
      /* 95 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var global = __w_pdfjs_require__(8);

        var navigator = global.navigator;
        module.exports = navigator && navigator.userAgent || '';

        /***/
      }),
      /* 96 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var anObject = __w_pdfjs_require__(12);

        var isObject = __w_pdfjs_require__(13);

        var newPromiseCapability = __w_pdfjs_require__(93);

        module.exports = function (C, x) {
          anObject(C);
          if (isObject(x) && x.constructor === C) return x;
          var promiseCapability = newPromiseCapability.f(C);
          var resolve = promiseCapability.resolve;
          resolve(x);
          return promiseCapability.promise;
        };

        /***/
      }),
      /* 97 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var redefine = __w_pdfjs_require__(20);

        module.exports = function (target, src, safe) {
          for (var key in src) {
            redefine(target, key, src[key], safe);
          }

          return target;
        };

        /***/
      }),
      /* 98 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var global = __w_pdfjs_require__(8);

        var dP = __w_pdfjs_require__(11);

        var DESCRIPTORS = __w_pdfjs_require__(15);

        var SPECIES = __w_pdfjs_require__(30)('species');

        module.exports = function (KEY) {
          var C = global[KEY];
          if (DESCRIPTORS && C && !C[SPECIES]) dP.f(C, SPECIES, {
            configurable: true,
            get: function get() {
              return this;
            }
          });
        };

        /***/
      }),
      /* 99 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        var core = __w_pdfjs_require__(9);

        var global = __w_pdfjs_require__(8);

        var speciesConstructor = __w_pdfjs_require__(89);

        var promiseResolve = __w_pdfjs_require__(96);

        $export($export.P + $export.R, 'Promise', {
          'finally': function _finally(onFinally) {
            var C = speciesConstructor(this, core.Promise || global.Promise);
            var isFunction = typeof onFinally == 'function';
            return this.then(isFunction ? function (x) {
              return promiseResolve(C, onFinally()).then(function () {
                return x;
              });
            } : onFinally, isFunction ? function (e) {
              return promiseResolve(C, onFinally()).then(function () {
                throw e;
              });
            } : onFinally);
          }
        });

        /***/
      }),
      /* 100 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        var newPromiseCapability = __w_pdfjs_require__(93);

        var perform = __w_pdfjs_require__(94);

        $export($export.S, 'Promise', {
          'try': function _try(callbackfn) {
            var promiseCapability = newPromiseCapability.f(this);
            var result = perform(callbackfn);
            (result.e ? promiseCapability.reject : promiseCapability.resolve)(result.v);
            return promiseCapability.promise;
          }
        });

        /***/
      }),
      /* 101 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(82);

        __w_pdfjs_require__(83);

        __w_pdfjs_require__(102);

        __w_pdfjs_require__(114);

        __w_pdfjs_require__(116);

        module.exports = __w_pdfjs_require__(9).WeakMap;

        /***/
      }),
      /* 102 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var each = __w_pdfjs_require__(103)(0);

        var redefine = __w_pdfjs_require__(20);

        var meta = __w_pdfjs_require__(107);

        var assign = __w_pdfjs_require__(71);

        var weak = __w_pdfjs_require__(108);

        var isObject = __w_pdfjs_require__(13);

        var fails = __w_pdfjs_require__(16);

        var validate = __w_pdfjs_require__(109);

        var WEAK_MAP = 'WeakMap';
        var getWeak = meta.getWeak;
        var isExtensible = Object.isExtensible;
        var uncaughtFrozenStore = weak.ufstore;
        var tmp = {};
        var InternalMap;

        var wrapper = function wrapper(get) {
          return function WeakMap() {
            return get(this, arguments.length > 0 ? arguments[0] : undefined);
          };
        };

        var methods = {
          get: function get(key) {
            if (isObject(key)) {
              var data = getWeak(key);
              if (data === true) return uncaughtFrozenStore(validate(this, WEAK_MAP)).get(key);
              return data ? data[this._i] : undefined;
            }
          },
          set: function set(key, value) {
            return weak.def(validate(this, WEAK_MAP), key, value);
          }
        };

        var $WeakMap = module.exports = __w_pdfjs_require__(110)(WEAK_MAP, wrapper, methods, weak, true, true);

        if (fails(function () {
          return new $WeakMap().set((Object.freeze || Object)(tmp), 7).get(tmp) != 7;
        })) {
          InternalMap = weak.getConstructor(wrapper, WEAK_MAP);
          assign(InternalMap.prototype, methods);
          meta.NEED = true;
          each(['delete', 'has', 'get', 'set'], function (key) {
            var proto = $WeakMap.prototype;
            var method = proto[key];
            redefine(proto, key, function (a, b) {
              if (isObject(a) && !isExtensible(a)) {
                if (!this._f) this._f = new InternalMap();

                var result = this._f[key](a, b);

                return key == 'set' ? this : result;
              }

              return method.call(this, a, b);
            });
          });
        }

        /***/
      }),
      /* 103 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var ctx = __w_pdfjs_require__(23);

        var IObject = __w_pdfjs_require__(43);

        var toObject = __w_pdfjs_require__(61);

        var toLength = __w_pdfjs_require__(25);

        var asc = __w_pdfjs_require__(104);

        module.exports = function (TYPE, $create) {
          var IS_MAP = TYPE == 1;
          var IS_FILTER = TYPE == 2;
          var IS_SOME = TYPE == 3;
          var IS_EVERY = TYPE == 4;
          var IS_FIND_INDEX = TYPE == 6;
          var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
          var create = $create || asc;
          return function ($this, callbackfn, that) {
            var O = toObject($this);
            var self = IObject(O);
            var f = ctx(callbackfn, that, 3);
            var length = toLength(self.length);
            var index = 0;
            var result = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;
            var val, res;

            for (; length > index; index++) {
              if (NO_HOLES || index in self) {
                val = self[index];
                res = f(val, index, O);

                if (TYPE) {
                  if (IS_MAP) result[index] = res; else if (res) switch (TYPE) {
                    case 3:
                      return true;

                    case 5:
                      return val;

                    case 6:
                      return index;

                    case 2:
                      result.push(val);
                  } else if (IS_EVERY) return false;
                }
              }
            }

            return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;
          };
        };

        /***/
      }),
      /* 104 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var speciesConstructor = __w_pdfjs_require__(105);

        module.exports = function (original, length) {
          return new (speciesConstructor(original))(length);
        };

        /***/
      }),
      /* 105 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var isObject = __w_pdfjs_require__(13);

        var isArray = __w_pdfjs_require__(106);

        var SPECIES = __w_pdfjs_require__(30)('species');

        module.exports = function (original) {
          var C;

          if (isArray(original)) {
            C = original.constructor;
            if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined;

            if (isObject(C)) {
              C = C[SPECIES];
              if (C === null) C = undefined;
            }
          }

          return C === undefined ? Array : C;
        };

        /***/
      }),
      /* 106 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var cof = __w_pdfjs_require__(29);

        module.exports = Array.isArray || function isArray(arg) {
          return cof(arg) == 'Array';
        };

        /***/
      }),
      /* 107 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        function _typeof(obj) {
          if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof = function _typeof(obj) {
              return typeof obj;
            };
          } else {
            _typeof = function _typeof(obj) {
              return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
          }
          return _typeof(obj);
        }

        var META = __w_pdfjs_require__(22)('meta');

        var isObject = __w_pdfjs_require__(13);

        var has = __w_pdfjs_require__(21);

        var setDesc = __w_pdfjs_require__(11).f;

        var id = 0;

        var isExtensible = Object.isExtensible || function () {
          return true;
        };

        var FREEZE = !__w_pdfjs_require__(16)(function () {
          return isExtensible(Object.preventExtensions({}));
        });

        var setMeta = function setMeta(it) {
          setDesc(it, META, {
            value: {
              i: 'O' + ++id,
              w: {}
            }
          });
        };

        var fastKey = function fastKey(it, create) {
          if (!isObject(it)) return _typeof(it) == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;

          if (!has(it, META)) {
            if (!isExtensible(it)) return 'F';
            if (!create) return 'E';
            setMeta(it);
          }

          return it[META].i;
        };

        var getWeak = function getWeak(it, create) {
          if (!has(it, META)) {
            if (!isExtensible(it)) return true;
            if (!create) return false;
            setMeta(it);
          }

          return it[META].w;
        };

        var onFreeze = function onFreeze(it) {
          if (FREEZE && meta.NEED && isExtensible(it) && !has(it, META)) setMeta(it);
          return it;
        };

        var meta = module.exports = {
          KEY: META,
          NEED: false,
          fastKey: fastKey,
          getWeak: getWeak,
          onFreeze: onFreeze
        };

        /***/
      }),
      /* 108 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var redefineAll = __w_pdfjs_require__(97);

        var getWeak = __w_pdfjs_require__(107).getWeak;

        var anObject = __w_pdfjs_require__(12);

        var isObject = __w_pdfjs_require__(13);

        var anInstance = __w_pdfjs_require__(87);

        var forOf = __w_pdfjs_require__(88);

        var createArrayMethod = __w_pdfjs_require__(103);

        var $has = __w_pdfjs_require__(21);

        var validate = __w_pdfjs_require__(109);

        var arrayFind = createArrayMethod(5);
        var arrayFindIndex = createArrayMethod(6);
        var id = 0;

        var uncaughtFrozenStore = function uncaughtFrozenStore(that) {
          return that._l || (that._l = new UncaughtFrozenStore());
        };

        var UncaughtFrozenStore = function UncaughtFrozenStore() {
          this.a = [];
        };

        var findUncaughtFrozen = function findUncaughtFrozen(store, key) {
          return arrayFind(store.a, function (it) {
            return it[0] === key;
          });
        };

        UncaughtFrozenStore.prototype = {
          get: function get(key) {
            var entry = findUncaughtFrozen(this, key);
            if (entry) return entry[1];
          },
          has: function has(key) {
            return !!findUncaughtFrozen(this, key);
          },
          set: function set(key, value) {
            var entry = findUncaughtFrozen(this, key);
            if (entry) entry[1] = value; else this.a.push([key, value]);
          },
          'delete': function _delete(key) {
            var index = arrayFindIndex(this.a, function (it) {
              return it[0] === key;
            });
            if (~index) this.a.splice(index, 1);
            return !!~index;
          }
        };
        module.exports = {
          getConstructor: function getConstructor(wrapper, NAME, IS_MAP, ADDER) {
            var C = wrapper(function (that, iterable) {
              anInstance(that, C, NAME, '_i');
              that._t = NAME;
              that._i = id++;
              that._l = undefined;
              if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
            });
            redefineAll(C.prototype, {
              'delete': function _delete(key) {
                if (!isObject(key)) return false;
                var data = getWeak(key);
                if (data === true) return uncaughtFrozenStore(validate(this, NAME))['delete'](key);
                return data && $has(data, this._i) && delete data[this._i];
              },
              has: function has(key) {
                if (!isObject(key)) return false;
                var data = getWeak(key);
                if (data === true) return uncaughtFrozenStore(validate(this, NAME)).has(key);
                return data && $has(data, this._i);
              }
            });
            return C;
          },
          def: function def(that, key, value) {
            var data = getWeak(anObject(key), true);
            if (data === true) uncaughtFrozenStore(that).set(key, value); else data[that._i] = value;
            return that;
          },
          ufstore: uncaughtFrozenStore
        };

        /***/
      }),
      /* 109 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var isObject = __w_pdfjs_require__(13);

        module.exports = function (it, TYPE) {
          if (!isObject(it) || it._t !== TYPE) throw TypeError('Incompatible receiver, ' + TYPE + ' required!');
          return it;
        };

        /***/
      }),
      /* 110 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var global = __w_pdfjs_require__(8);

        var $export = __w_pdfjs_require__(7);

        var redefine = __w_pdfjs_require__(20);

        var redefineAll = __w_pdfjs_require__(97);

        var meta = __w_pdfjs_require__(107);

        var forOf = __w_pdfjs_require__(88);

        var anInstance = __w_pdfjs_require__(87);

        var isObject = __w_pdfjs_require__(13);

        var fails = __w_pdfjs_require__(16);

        var $iterDetect = __w_pdfjs_require__(68);

        var setToStringTag = __w_pdfjs_require__(59);

        var inheritIfRequired = __w_pdfjs_require__(111);

        module.exports = function (NAME, wrapper, methods, common, IS_MAP, IS_WEAK) {
          var Base = global[NAME];
          var C = Base;
          var ADDER = IS_MAP ? 'set' : 'add';
          var proto = C && C.prototype;
          var O = {};

          var fixMethod = function fixMethod(KEY) {
            var fn = proto[KEY];
            redefine(proto, KEY, KEY == 'delete' ? function (a) {
              return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);
            } : KEY == 'has' ? function has(a) {
              return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);
            } : KEY == 'get' ? function get(a) {
              return IS_WEAK && !isObject(a) ? undefined : fn.call(this, a === 0 ? 0 : a);
            } : KEY == 'add' ? function add(a) {
              fn.call(this, a === 0 ? 0 : a);
              return this;
            } : function set(a, b) {
              fn.call(this, a === 0 ? 0 : a, b);
              return this;
            });
          };

          if (typeof C != 'function' || !(IS_WEAK || proto.forEach && !fails(function () {
            new C().entries().next();
          }))) {
            C = common.getConstructor(wrapper, NAME, IS_MAP, ADDER);
            redefineAll(C.prototype, methods);
            meta.NEED = true;
          } else {
            var instance = new C();
            var HASNT_CHAINING = instance[ADDER](IS_WEAK ? {} : -0, 1) != instance;
            var THROWS_ON_PRIMITIVES = fails(function () {
              instance.has(1);
            });
            var ACCEPT_ITERABLES = $iterDetect(function (iter) {
              new C(iter);
            });
            var BUGGY_ZERO = !IS_WEAK && fails(function () {
              var $instance = new C();
              var index = 5;

              while (index--) {
                $instance[ADDER](index, index);
              }

              return !$instance.has(-0);
            });

            if (!ACCEPT_ITERABLES) {
              C = wrapper(function (target, iterable) {
                anInstance(target, C, NAME);
                var that = inheritIfRequired(new Base(), target, C);
                if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
                return that;
              });
              C.prototype = proto;
              proto.constructor = C;
            }

            if (THROWS_ON_PRIMITIVES || BUGGY_ZERO) {
              fixMethod('delete');
              fixMethod('has');
              IS_MAP && fixMethod('get');
            }

            if (BUGGY_ZERO || HASNT_CHAINING) fixMethod(ADDER);
            if (IS_WEAK && proto.clear) delete proto.clear;
          }

          setToStringTag(C, NAME);
          O[NAME] = C;
          $export($export.G + $export.W + $export.F * (C != Base), O);
          if (!IS_WEAK) common.setStrong(C, NAME, IS_MAP);
          return C;
        };

        /***/
      }),
      /* 111 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var isObject = __w_pdfjs_require__(13);

        var setPrototypeOf = __w_pdfjs_require__(112).set;

        module.exports = function (that, target, C) {
          var S = target.constructor;
          var P;

          if (S !== C && typeof S == 'function' && (P = S.prototype) !== C.prototype && isObject(P) && setPrototypeOf) {
            setPrototypeOf(that, P);
          }

          return that;
        };

        /***/
      }),
      /* 112 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var isObject = __w_pdfjs_require__(13);

        var anObject = __w_pdfjs_require__(12);

        var check = function check(O, proto) {
          anObject(O);
          if (!isObject(proto) && proto !== null) throw TypeError(proto + ": can't set as prototype!");
        };

        module.exports = {
          set: Object.setPrototypeOf || ('__proto__' in {} ? function (test, buggy, set) {
            try {
              set = __w_pdfjs_require__(23)(Function.call, __w_pdfjs_require__(113).f(Object.prototype, '__proto__').set, 2);
              set(test, []);
              buggy = !(test instanceof Array);
            } catch (e) {
              buggy = true;
            }

            return function setPrototypeOf(O, proto) {
              check(O, proto);
              if (buggy) O.__proto__ = proto; else set(O, proto);
              return O;
            };
          }({}, false) : undefined),
          check: check
        };

        /***/
      }),
      /* 113 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var pIE = __w_pdfjs_require__(73);

        var createDesc = __w_pdfjs_require__(19);

        var toIObject = __w_pdfjs_require__(42);

        var toPrimitive = __w_pdfjs_require__(18);

        var has = __w_pdfjs_require__(21);

        var IE8_DOM_DEFINE = __w_pdfjs_require__(14);

        var gOPD = Object.getOwnPropertyDescriptor;
        exports.f = __w_pdfjs_require__(15) ? gOPD : function getOwnPropertyDescriptor(O, P) {
          O = toIObject(O);
          P = toPrimitive(P, true);
          if (IE8_DOM_DEFINE) try {
            return gOPD(O, P);
          } catch (e) {
          }
          if (has(O, P)) return createDesc(!pIE.f.call(O, P), O[P]);
        };

        /***/
      }),
      /* 114 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(115)('WeakMap');

        /***/
      }),
      /* 115 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        module.exports = function (COLLECTION) {
          $export($export.S, COLLECTION, {
            of: function of() {
              var length = arguments.length;
              var A = new Array(length);

              while (length--) {
                A[length] = arguments[length];
              }

              return new this(A);
            }
          });
        };

        /***/
      }),
      /* 116 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(117)('WeakMap');

        /***/
      }),
      /* 117 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        var aFunction = __w_pdfjs_require__(24);

        var ctx = __w_pdfjs_require__(23);

        var forOf = __w_pdfjs_require__(88);

        module.exports = function (COLLECTION) {
          $export($export.S, COLLECTION, {
            from: function from(source) {
              var mapFn = arguments[1];
              var mapping, A, n, cb;
              aFunction(this);
              mapping = mapFn !== undefined;
              if (mapping) aFunction(mapFn);
              if (source == undefined) return new this();
              A = [];

              if (mapping) {
                n = 0;
                cb = ctx(mapFn, arguments[2], 2);
                forOf(source, false, function (nextItem) {
                  A.push(cb(nextItem, n++));
                });
              } else {
                forOf(source, false, A.push, A);
              }

              return new this(A);
            }
          });
        };

        /***/
      }),
      /* 118 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(82);

        __w_pdfjs_require__(83);

        __w_pdfjs_require__(119);

        __w_pdfjs_require__(120);

        __w_pdfjs_require__(121);

        module.exports = __w_pdfjs_require__(9).WeakSet;

        /***/
      }),
      /* 119 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var weak = __w_pdfjs_require__(108);

        var validate = __w_pdfjs_require__(109);

        var WEAK_SET = 'WeakSet';

        __w_pdfjs_require__(110)(WEAK_SET, function (get) {
          return function WeakSet() {
            return get(this, arguments.length > 0 ? arguments[0] : undefined);
          };
        }, {
          add: function add(value) {
            return weak.def(validate(this, WEAK_SET), value, true);
          }
        }, weak, false, true);

        /***/
      }),
      /* 120 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(115)('WeakSet');

        /***/
      }),
      /* 121 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(117)('WeakSet');

        /***/
      }),
      /* 122 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(123);

        module.exports = __w_pdfjs_require__(9).String.codePointAt;

        /***/
      }),
      /* 123 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        var $at = __w_pdfjs_require__(48)(false);

        $export($export.P, 'String', {
          codePointAt: function codePointAt(pos) {
            return $at(this, pos);
          }
        });

        /***/
      }),
      /* 124 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(125);

        module.exports = __w_pdfjs_require__(9).String.fromCodePoint;

        /***/
      }),
      /* 125 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        var toAbsoluteIndex = __w_pdfjs_require__(44);

        var fromCharCode = String.fromCharCode;
        var $fromCodePoint = String.fromCodePoint;
        $export($export.S + $export.F * (!!$fromCodePoint && $fromCodePoint.length != 1), 'String', {
          fromCodePoint: function fromCodePoint(x) {
            var res = [];
            var aLen = arguments.length;
            var i = 0;
            var code;

            while (aLen > i) {
              code = +arguments[i++];
              if (toAbsoluteIndex(code, 0x10ffff) !== code) throw RangeError(code + ' is not a valid code point');
              res.push(code < 0x10000 ? fromCharCode(code) : fromCharCode(((code -= 0x10000) >> 10) + 0xd800, code % 0x400 + 0xdc00));
            }

            return res.join('');
          }
        });

        /***/
      }),
      /* 126 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(127);

        __w_pdfjs_require__(82);

        module.exports = __w_pdfjs_require__(9).Symbol;

        /***/
      }),
      /* 127 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        function _typeof(obj) {
          if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof = function _typeof(obj) {
              return typeof obj;
            };
          } else {
            _typeof = function _typeof(obj) {
              return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
          }
          return _typeof(obj);
        }

        var global = __w_pdfjs_require__(8);

        var has = __w_pdfjs_require__(21);

        var DESCRIPTORS = __w_pdfjs_require__(15);

        var $export = __w_pdfjs_require__(7);

        var redefine = __w_pdfjs_require__(20);

        var META = __w_pdfjs_require__(107).KEY;

        var $fails = __w_pdfjs_require__(16);

        var shared = __w_pdfjs_require__(31);

        var setToStringTag = __w_pdfjs_require__(59);

        var uid = __w_pdfjs_require__(22);

        var wks = __w_pdfjs_require__(30);

        var wksExt = __w_pdfjs_require__(128);

        var wksDefine = __w_pdfjs_require__(129);

        var enumKeys = __w_pdfjs_require__(130);

        var isArray = __w_pdfjs_require__(106);

        var anObject = __w_pdfjs_require__(12);

        var isObject = __w_pdfjs_require__(13);

        var toIObject = __w_pdfjs_require__(42);

        var toPrimitive = __w_pdfjs_require__(18);

        var createDesc = __w_pdfjs_require__(19);

        var _create = __w_pdfjs_require__(52);

        var gOPNExt = __w_pdfjs_require__(131);

        var $GOPD = __w_pdfjs_require__(113);

        var $DP = __w_pdfjs_require__(11);

        var $keys = __w_pdfjs_require__(54);

        var gOPD = $GOPD.f;
        var dP = $DP.f;
        var gOPN = gOPNExt.f;
        var $Symbol = global.Symbol;
        var $JSON = global.JSON;

        var _stringify = $JSON && $JSON.stringify;

        var PROTOTYPE = 'prototype';
        var HIDDEN = wks('_hidden');
        var TO_PRIMITIVE = wks('toPrimitive');
        var isEnum = {}.propertyIsEnumerable;
        var SymbolRegistry = shared('symbol-registry');
        var AllSymbols = shared('symbols');
        var OPSymbols = shared('op-symbols');
        var ObjectProto = Object[PROTOTYPE];
        var USE_NATIVE = typeof $Symbol == 'function';
        var QObject = global.QObject;
        var setter = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;
        var setSymbolDesc = DESCRIPTORS && $fails(function () {
          return _create(dP({}, 'a', {
            get: function get() {
              return dP(this, 'a', {
                value: 7
              }).a;
            }
          })).a != 7;
        }) ? function (it, key, D) {
          var protoDesc = gOPD(ObjectProto, key);
          if (protoDesc) delete ObjectProto[key];
          dP(it, key, D);
          if (protoDesc && it !== ObjectProto) dP(ObjectProto, key, protoDesc);
        } : dP;

        var wrap = function wrap(tag) {
          var sym = AllSymbols[tag] = _create($Symbol[PROTOTYPE]);

          sym._k = tag;
          return sym;
        };

        var isSymbol = USE_NATIVE && _typeof($Symbol.iterator) == 'symbol' ? function (it) {
          return _typeof(it) == 'symbol';
        } : function (it) {
          return it instanceof $Symbol;
        };

        var $defineProperty = function defineProperty(it, key, D) {
          if (it === ObjectProto) $defineProperty(OPSymbols, key, D);
          anObject(it);
          key = toPrimitive(key, true);
          anObject(D);

          if (has(AllSymbols, key)) {
            if (!D.enumerable) {
              if (!has(it, HIDDEN)) dP(it, HIDDEN, createDesc(1, {}));
              it[HIDDEN][key] = true;
            } else {
              if (has(it, HIDDEN) && it[HIDDEN][key]) it[HIDDEN][key] = false;
              D = _create(D, {
                enumerable: createDesc(0, false)
              });
            }

            return setSymbolDesc(it, key, D);
          }

          return dP(it, key, D);
        };

        var $defineProperties = function defineProperties(it, P) {
          anObject(it);
          var keys = enumKeys(P = toIObject(P));
          var i = 0;
          var l = keys.length;
          var key;

          while (l > i) {
            $defineProperty(it, key = keys[i++], P[key]);
          }

          return it;
        };

        var $create = function create(it, P) {
          return P === undefined ? _create(it) : $defineProperties(_create(it), P);
        };

        var $propertyIsEnumerable = function propertyIsEnumerable(key) {
          var E = isEnum.call(this, key = toPrimitive(key, true));
          if (this === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return false;
          return E || !has(this, key) || !has(AllSymbols, key) || has(this, HIDDEN) && this[HIDDEN][key] ? E : true;
        };

        var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(it, key) {
          it = toIObject(it);
          key = toPrimitive(key, true);
          if (it === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return;
          var D = gOPD(it, key);
          if (D && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) D.enumerable = true;
          return D;
        };

        var $getOwnPropertyNames = function getOwnPropertyNames(it) {
          var names = gOPN(toIObject(it));
          var result = [];
          var i = 0;
          var key;

          while (names.length > i) {
            if (!has(AllSymbols, key = names[i++]) && key != HIDDEN && key != META) result.push(key);
          }

          return result;
        };

        var $getOwnPropertySymbols = function getOwnPropertySymbols(it) {
          var IS_OP = it === ObjectProto;
          var names = gOPN(IS_OP ? OPSymbols : toIObject(it));
          var result = [];
          var i = 0;
          var key;

          while (names.length > i) {
            if (has(AllSymbols, key = names[i++]) && (IS_OP ? has(ObjectProto, key) : true)) result.push(AllSymbols[key]);
          }

          return result;
        };

        if (!USE_NATIVE) {
          $Symbol = function _Symbol() {
            if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor!');
            var tag = uid(arguments.length > 0 ? arguments[0] : undefined);

            var $set = function $set(value) {
              if (this === ObjectProto) $set.call(OPSymbols, value);
              if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
              setSymbolDesc(this, tag, createDesc(1, value));
            };

            if (DESCRIPTORS && setter) setSymbolDesc(ObjectProto, tag, {
              configurable: true,
              set: $set
            });
            return wrap(tag);
          };

          redefine($Symbol[PROTOTYPE], 'toString', function toString() {
            return this._k;
          });
          $GOPD.f = $getOwnPropertyDescriptor;
          $DP.f = $defineProperty;
          __w_pdfjs_require__(132).f = gOPNExt.f = $getOwnPropertyNames;
          __w_pdfjs_require__(73).f = $propertyIsEnumerable;
          __w_pdfjs_require__(72).f = $getOwnPropertySymbols;

          if (DESCRIPTORS && !__w_pdfjs_require__(32)) {
            redefine(ObjectProto, 'propertyIsEnumerable', $propertyIsEnumerable, true);
          }

          wksExt.f = function (name) {
            return wrap(wks(name));
          };
        }

        $export($export.G + $export.W + $export.F * !USE_NATIVE, {
          Symbol: $Symbol
        });

        for (var es6Symbols = 'hasInstance,isConcatSpreadable,iterator,match,replace,search,species,split,toPrimitive,toStringTag,unscopables'.split(','), j = 0; es6Symbols.length > j;) {
          wks(es6Symbols[j++]);
        }

        for (var wellKnownSymbols = $keys(wks.store), k = 0; wellKnownSymbols.length > k;) {
          wksDefine(wellKnownSymbols[k++]);
        }

        $export($export.S + $export.F * !USE_NATIVE, 'Symbol', {
          'for': function _for(key) {
            return has(SymbolRegistry, key += '') ? SymbolRegistry[key] : SymbolRegistry[key] = $Symbol(key);
          },
          keyFor: function keyFor(sym) {
            if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol!');

            for (var key in SymbolRegistry) {
              if (SymbolRegistry[key] === sym) return key;
            }
          },
          useSetter: function useSetter() {
            setter = true;
          },
          useSimple: function useSimple() {
            setter = false;
          }
        });
        $export($export.S + $export.F * !USE_NATIVE, 'Object', {
          create: $create,
          defineProperty: $defineProperty,
          defineProperties: $defineProperties,
          getOwnPropertyDescriptor: $getOwnPropertyDescriptor,
          getOwnPropertyNames: $getOwnPropertyNames,
          getOwnPropertySymbols: $getOwnPropertySymbols
        });
        $JSON && $export($export.S + $export.F * (!USE_NATIVE || $fails(function () {
          var S = $Symbol();
          return _stringify([S]) != '[null]' || _stringify({
            a: S
          }) != '{}' || _stringify(Object(S)) != '{}';
        })), 'JSON', {
          stringify: function stringify(it) {
            var args = [it];
            var i = 1;
            var replacer, $replacer;

            while (arguments.length > i) {
              args.push(arguments[i++]);
            }

            $replacer = replacer = args[1];
            if (!isObject(replacer) && it === undefined || isSymbol(it)) return;
            if (!isArray(replacer)) replacer = function replacer(key, value) {
              if (typeof $replacer == 'function') value = $replacer.call(this, key, value);
              if (!isSymbol(value)) return value;
            };
            args[1] = replacer;
            return _stringify.apply($JSON, args);
          }
        });
        $Symbol[PROTOTYPE][TO_PRIMITIVE] || __w_pdfjs_require__(10)($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);
        setToStringTag($Symbol, 'Symbol');
        setToStringTag(Math, 'Math', true);
        setToStringTag(global.JSON, 'JSON', true);

        /***/
      }),
      /* 128 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        exports.f = __w_pdfjs_require__(30);

        /***/
      }),
      /* 129 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var global = __w_pdfjs_require__(8);

        var core = __w_pdfjs_require__(9);

        var LIBRARY = __w_pdfjs_require__(32);

        var wksExt = __w_pdfjs_require__(128);

        var defineProperty = __w_pdfjs_require__(11).f;

        module.exports = function (name) {
          var $Symbol = core.Symbol || (core.Symbol = LIBRARY ? {} : global.Symbol || {});
          if (name.charAt(0) != '_' && !(name in $Symbol)) defineProperty($Symbol, name, {
            value: wksExt.f(name)
          });
        };

        /***/
      }),
      /* 130 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var getKeys = __w_pdfjs_require__(54);

        var gOPS = __w_pdfjs_require__(72);

        var pIE = __w_pdfjs_require__(73);

        module.exports = function (it) {
          var result = getKeys(it);
          var getSymbols = gOPS.f;

          if (getSymbols) {
            var symbols = getSymbols(it);
            var isEnum = pIE.f;
            var i = 0;
            var key;

            while (symbols.length > i) {
              if (isEnum.call(it, key = symbols[i++])) result.push(key);
            }
          }

          return result;
        };

        /***/
      }),
      /* 131 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        function _typeof(obj) {
          if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof = function _typeof(obj) {
              return typeof obj;
            };
          } else {
            _typeof = function _typeof(obj) {
              return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
          }
          return _typeof(obj);
        }

        var toIObject = __w_pdfjs_require__(42);

        var gOPN = __w_pdfjs_require__(132).f;

        var toString = {}.toString;
        var windowNames = (typeof window === "undefined" ? "undefined" : _typeof(window)) == 'object' && window && Object.getOwnPropertyNames ? Object.getOwnPropertyNames(window) : [];

        var getWindowNames = function getWindowNames(it) {
          try {
            return gOPN(it);
          } catch (e) {
            return windowNames.slice();
          }
        };

        module.exports.f = function getOwnPropertyNames(it) {
          return windowNames && toString.call(it) == '[object Window]' ? getWindowNames(it) : gOPN(toIObject(it));
        };

        /***/
      }),
      /* 132 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $keys = __w_pdfjs_require__(55);

        var hiddenKeys = __w_pdfjs_require__(57).concat('length', 'prototype');

        exports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
          return $keys(O, hiddenKeys);
        };

        /***/
      }),
      /* 133 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(134);

        module.exports = __w_pdfjs_require__(9).String.padStart;

        /***/
      }),
      /* 134 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        var $pad = __w_pdfjs_require__(135);

        var userAgent = __w_pdfjs_require__(95);

        $export($export.P + $export.F * /Version\/10\.\d+(\.\d+)? Safari\//.test(userAgent), 'String', {
          padStart: function padStart(maxLength) {
            return $pad(this, maxLength, arguments.length > 1 ? arguments[1] : undefined, true);
          }
        });

        /***/
      }),
      /* 135 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var toLength = __w_pdfjs_require__(25);

        var repeat = __w_pdfjs_require__(136);

        var defined = __w_pdfjs_require__(33);

        module.exports = function (that, maxLength, fillString, left) {
          var S = String(defined(that));
          var stringLength = S.length;
          var fillStr = fillString === undefined ? ' ' : String(fillString);
          var intMaxLength = toLength(maxLength);
          if (intMaxLength <= stringLength || fillStr == '') return S;
          var fillLen = intMaxLength - stringLength;
          var stringFiller = repeat.call(fillStr, Math.ceil(fillLen / fillStr.length));
          if (stringFiller.length > fillLen) stringFiller = stringFiller.slice(0, fillLen);
          return left ? stringFiller + S : S + stringFiller;
        };

        /***/
      }),
      /* 136 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var toInteger = __w_pdfjs_require__(26);

        var defined = __w_pdfjs_require__(33);

        module.exports = function repeat(count) {
          var str = String(defined(this));
          var res = '';
          var n = toInteger(count);
          if (n < 0 || n == Infinity) throw RangeError("Count can't be negative");

          for (; n > 0; (n >>>= 1) && (str += str)) {
            if (n & 1) res += str;
          }

          return res;
        };

        /***/
      }),
      /* 137 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(138);

        module.exports = __w_pdfjs_require__(9).String.padEnd;

        /***/
      }),
      /* 138 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        var $pad = __w_pdfjs_require__(135);

        var userAgent = __w_pdfjs_require__(95);

        $export($export.P + $export.F * /Version\/10\.\d+(\.\d+)? Safari\//.test(userAgent), 'String', {
          padEnd: function padEnd(maxLength) {
            return $pad(this, maxLength, arguments.length > 1 ? arguments[1] : undefined, false);
          }
        });

        /***/
      }),
      /* 139 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        __w_pdfjs_require__(140);

        module.exports = __w_pdfjs_require__(9).Object.values;

        /***/
      }),
      /* 140 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var $export = __w_pdfjs_require__(7);

        var $values = __w_pdfjs_require__(141)(false);

        $export($export.S, 'Object', {
          values: function values(it) {
            return $values(it);
          }
        });

        /***/
      }),
      /* 141 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var getKeys = __w_pdfjs_require__(54);

        var toIObject = __w_pdfjs_require__(42);

        var isEnum = __w_pdfjs_require__(73).f;

        module.exports = function (isEntries) {
          return function (it) {
            var O = toIObject(it);
            var keys = getKeys(O);
            var length = keys.length;
            var i = 0;
            var result = [];
            var key;

            while (length > i) {
              if (isEnum.call(O, key = keys[i++])) {
                result.push(isEntries ? [key, O[key]] : O[key]);
              }
            }

            return result;
          };
        };

        /***/
      }),
      /* 142 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        {
          var isReadableStreamSupported = false;

          if (typeof ReadableStream !== 'undefined') {
            try {
              new ReadableStream({
                start: function start(controller) {
                  controller.close();
                }
              });
              isReadableStreamSupported = true;
            } catch (e) {
            }
          }

          if (isReadableStreamSupported) {
            exports.ReadableStream = ReadableStream;
          } else {
            exports.ReadableStream = __w_pdfjs_require__(143).ReadableStream;
          }
        }

        /***/
      }),
      /* 143 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        function _typeof2(obj) {
          if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof2 = function _typeof2(obj) {
              return typeof obj;
            };
          } else {
            _typeof2 = function _typeof2(obj) {
              return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
          }
          return _typeof2(obj);
        }

        (function (e, a) {
          for (var i in a) {
            e[i] = a[i];
          }
        })(exports, function (modules) {
          var installedModules = {};

          function __w_pdfjs_require__(moduleId) {
            if (installedModules[moduleId]) return installedModules[moduleId].exports;
            var module = installedModules[moduleId] = {
              i: moduleId,
              l: false,
              exports: {}
            };
            modules[moduleId].call(module.exports, module, module.exports, __w_pdfjs_require__);
            module.l = true;
            return module.exports;
          }

          __w_pdfjs_require__.m = modules;
          __w_pdfjs_require__.c = installedModules;

          __w_pdfjs_require__.i = function (value) {
            return value;
          };

          __w_pdfjs_require__.d = function (exports, name, getter) {
            if (!__w_pdfjs_require__.o(exports, name)) {
              Object.defineProperty(exports, name, {
                configurable: false,
                enumerable: true,
                get: getter
              });
            }
          };

          __w_pdfjs_require__.n = function (module) {
            var getter = module && module.__esModule ? function getDefault() {
              return module['default'];
            } : function getModuleExports() {
              return module;
            };

            __w_pdfjs_require__.d(getter, 'a', getter);

            return getter;
          };

          __w_pdfjs_require__.o = function (object, property) {
            return Object.prototype.hasOwnProperty.call(object, property);
          };

          __w_pdfjs_require__.p = "";
          return __w_pdfjs_require__(__w_pdfjs_require__.s = 7);
        }([function (module, exports, __w_pdfjs_require__) {
          "use strict";

          var _typeof = typeof Symbol === "function" && _typeof2(Symbol.iterator) === "symbol" ? function (obj) {
            return _typeof2(obj);
          } : function (obj) {
            return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : _typeof2(obj);
          };

          var _require = __w_pdfjs_require__(1),
            assert = _require.assert;

          function IsPropertyKey(argument) {
            return typeof argument === 'string' || (typeof argument === 'undefined' ? 'undefined' : _typeof(argument)) === 'symbol';
          }

          exports.typeIsObject = function (x) {
            return (typeof x === 'undefined' ? 'undefined' : _typeof(x)) === 'object' && x !== null || typeof x === 'function';
          };

          exports.createDataProperty = function (o, p, v) {
            assert(exports.typeIsObject(o));
            Object.defineProperty(o, p, {
              value: v,
              writable: true,
              enumerable: true,
              configurable: true
            });
          };

          exports.createArrayFromList = function (elements) {
            return elements.slice();
          };

          exports.ArrayBufferCopy = function (dest, destOffset, src, srcOffset, n) {
            new Uint8Array(dest).set(new Uint8Array(src, srcOffset, n), destOffset);
          };

          exports.CreateIterResultObject = function (value, done) {
            assert(typeof done === 'boolean');
            var obj = {};
            Object.defineProperty(obj, 'value', {
              value: value,
              enumerable: true,
              writable: true,
              configurable: true
            });
            Object.defineProperty(obj, 'done', {
              value: done,
              enumerable: true,
              writable: true,
              configurable: true
            });
            return obj;
          };

          exports.IsFiniteNonNegativeNumber = function (v) {
            if (Number.isNaN(v)) {
              return false;
            }

            if (v === Infinity) {
              return false;
            }

            if (v < 0) {
              return false;
            }

            return true;
          };

          function Call(F, V, args) {
            if (typeof F !== 'function') {
              throw new TypeError('Argument is not a function');
            }

            return Function.prototype.apply.call(F, V, args);
          }

          exports.InvokeOrNoop = function (O, P, args) {
            assert(O !== undefined);
            assert(IsPropertyKey(P));
            assert(Array.isArray(args));
            var method = O[P];

            if (method === undefined) {
              return undefined;
            }

            return Call(method, O, args);
          };

          exports.PromiseInvokeOrNoop = function (O, P, args) {
            assert(O !== undefined);
            assert(IsPropertyKey(P));
            assert(Array.isArray(args));

            try {
              return Promise.resolve(exports.InvokeOrNoop(O, P, args));
            } catch (returnValueE) {
              return Promise.reject(returnValueE);
            }
          };

          exports.PromiseInvokeOrPerformFallback = function (O, P, args, F, argsF) {
            assert(O !== undefined);
            assert(IsPropertyKey(P));
            assert(Array.isArray(args));
            assert(Array.isArray(argsF));
            var method = void 0;

            try {
              method = O[P];
            } catch (methodE) {
              return Promise.reject(methodE);
            }

            if (method === undefined) {
              return F.apply(null, argsF);
            }

            try {
              return Promise.resolve(Call(method, O, args));
            } catch (e) {
              return Promise.reject(e);
            }
          };

          exports.TransferArrayBuffer = function (O) {
            return O.slice();
          };

          exports.ValidateAndNormalizeHighWaterMark = function (highWaterMark) {
            highWaterMark = Number(highWaterMark);

            if (Number.isNaN(highWaterMark) || highWaterMark < 0) {
              throw new RangeError('highWaterMark property of a queuing strategy must be non-negative and non-NaN');
            }

            return highWaterMark;
          };

          exports.ValidateAndNormalizeQueuingStrategy = function (size, highWaterMark) {
            if (size !== undefined && typeof size !== 'function') {
              throw new TypeError('size property of a queuing strategy must be a function');
            }

            highWaterMark = exports.ValidateAndNormalizeHighWaterMark(highWaterMark);
            return {
              size: size,
              highWaterMark: highWaterMark
            };
          };
        }, function (module, exports, __w_pdfjs_require__) {
          "use strict";

          function rethrowAssertionErrorRejection(e) {
            if (e && e.constructor === AssertionError) {
              setTimeout(function () {
                throw e;
              }, 0);
            }
          }

          function AssertionError(message) {
            this.name = 'AssertionError';
            this.message = message || '';
            this.stack = new Error().stack;
          }

          AssertionError.prototype = Object.create(Error.prototype);
          AssertionError.prototype.constructor = AssertionError;

          function assert(value, message) {
            if (!value) {
              throw new AssertionError(message);
            }
          }

          module.exports = {
            rethrowAssertionErrorRejection: rethrowAssertionErrorRejection,
            AssertionError: AssertionError,
            assert: assert
          };
        }, function (module, exports, __w_pdfjs_require__) {
          "use strict";

          var _createClass = function () {
            function defineProperties(target, props) {
              for (var i = 0; i < props.length; i++) {
                var descriptor = props[i];
                descriptor.enumerable = descriptor.enumerable || false;
                descriptor.configurable = true;
                if ("value" in descriptor) descriptor.writable = true;
                Object.defineProperty(target, descriptor.key, descriptor);
              }
            }

            return function (Constructor, protoProps, staticProps) {
              if (protoProps) defineProperties(Constructor.prototype, protoProps);
              if (staticProps) defineProperties(Constructor, staticProps);
              return Constructor;
            };
          }();

          function _classCallCheck(instance, Constructor) {
            if (!(instance instanceof Constructor)) {
              throw new TypeError("Cannot call a class as a function");
            }
          }

          var _require = __w_pdfjs_require__(0),
            InvokeOrNoop = _require.InvokeOrNoop,
            PromiseInvokeOrNoop = _require.PromiseInvokeOrNoop,
            ValidateAndNormalizeQueuingStrategy = _require.ValidateAndNormalizeQueuingStrategy,
            typeIsObject = _require.typeIsObject;

          var _require2 = __w_pdfjs_require__(1),
            assert = _require2.assert,
            rethrowAssertionErrorRejection = _require2.rethrowAssertionErrorRejection;

          var _require3 = __w_pdfjs_require__(3),
            DequeueValue = _require3.DequeueValue,
            EnqueueValueWithSize = _require3.EnqueueValueWithSize,
            PeekQueueValue = _require3.PeekQueueValue,
            ResetQueue = _require3.ResetQueue;

          var WritableStream = function () {
            function WritableStream() {
              var underlyingSink = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

              var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
                size = _ref.size,
                _ref$highWaterMark = _ref.highWaterMark,
                highWaterMark = _ref$highWaterMark === undefined ? 1 : _ref$highWaterMark;

              _classCallCheck(this, WritableStream);

              this._state = 'writable';
              this._storedError = undefined;
              this._writer = undefined;
              this._writableStreamController = undefined;
              this._writeRequests = [];
              this._inFlightWriteRequest = undefined;
              this._closeRequest = undefined;
              this._inFlightCloseRequest = undefined;
              this._pendingAbortRequest = undefined;
              this._backpressure = false;
              var type = underlyingSink.type;

              if (type !== undefined) {
                throw new RangeError('Invalid type is specified');
              }

              this._writableStreamController = new WritableStreamDefaultController(this, underlyingSink, size, highWaterMark);

              this._writableStreamController.__startSteps();
            }

            _createClass(WritableStream, [{
              key: 'abort',
              value: function abort(reason) {
                if (IsWritableStream(this) === false) {
                  return Promise.reject(streamBrandCheckException('abort'));
                }

                if (IsWritableStreamLocked(this) === true) {
                  return Promise.reject(new TypeError('Cannot abort a stream that already has a writer'));
                }

                return WritableStreamAbort(this, reason);
              }
            }, {
              key: 'getWriter',
              value: function getWriter() {
                if (IsWritableStream(this) === false) {
                  throw streamBrandCheckException('getWriter');
                }

                return AcquireWritableStreamDefaultWriter(this);
              }
            }, {
              key: 'locked',
              get: function get() {
                if (IsWritableStream(this) === false) {
                  throw streamBrandCheckException('locked');
                }

                return IsWritableStreamLocked(this);
              }
            }]);

            return WritableStream;
          }();

          module.exports = {
            AcquireWritableStreamDefaultWriter: AcquireWritableStreamDefaultWriter,
            IsWritableStream: IsWritableStream,
            IsWritableStreamLocked: IsWritableStreamLocked,
            WritableStream: WritableStream,
            WritableStreamAbort: WritableStreamAbort,
            WritableStreamDefaultControllerError: WritableStreamDefaultControllerError,
            WritableStreamDefaultWriterCloseWithErrorPropagation: WritableStreamDefaultWriterCloseWithErrorPropagation,
            WritableStreamDefaultWriterRelease: WritableStreamDefaultWriterRelease,
            WritableStreamDefaultWriterWrite: WritableStreamDefaultWriterWrite,
            WritableStreamCloseQueuedOrInFlight: WritableStreamCloseQueuedOrInFlight
          };

          function AcquireWritableStreamDefaultWriter(stream) {
            return new WritableStreamDefaultWriter(stream);
          }

          function IsWritableStream(x) {
            if (!typeIsObject(x)) {
              return false;
            }

            if (!Object.prototype.hasOwnProperty.call(x, '_writableStreamController')) {
              return false;
            }

            return true;
          }

          function IsWritableStreamLocked(stream) {
            assert(IsWritableStream(stream) === true, 'IsWritableStreamLocked should only be used on known writable streams');

            if (stream._writer === undefined) {
              return false;
            }

            return true;
          }

          function WritableStreamAbort(stream, reason) {
            var state = stream._state;

            if (state === 'closed') {
              return Promise.resolve(undefined);
            }

            if (state === 'errored') {
              return Promise.reject(stream._storedError);
            }

            var error = new TypeError('Requested to abort');

            if (stream._pendingAbortRequest !== undefined) {
              return Promise.reject(error);
            }

            assert(state === 'writable' || state === 'erroring', 'state must be writable or erroring');
            var wasAlreadyErroring = false;

            if (state === 'erroring') {
              wasAlreadyErroring = true;
              reason = undefined;
            }

            var promise = new Promise(function (resolve, reject) {
              stream._pendingAbortRequest = {
                _resolve: resolve,
                _reject: reject,
                _reason: reason,
                _wasAlreadyErroring: wasAlreadyErroring
              };
            });

            if (wasAlreadyErroring === false) {
              WritableStreamStartErroring(stream, error);
            }

            return promise;
          }

          function WritableStreamAddWriteRequest(stream) {
            assert(IsWritableStreamLocked(stream) === true);
            assert(stream._state === 'writable');
            var promise = new Promise(function (resolve, reject) {
              var writeRequest = {
                _resolve: resolve,
                _reject: reject
              };

              stream._writeRequests.push(writeRequest);
            });
            return promise;
          }

          function WritableStreamDealWithRejection(stream, error) {
            var state = stream._state;

            if (state === 'writable') {
              WritableStreamStartErroring(stream, error);
              return;
            }

            assert(state === 'erroring');
            WritableStreamFinishErroring(stream);
          }

          function WritableStreamStartErroring(stream, reason) {
            assert(stream._storedError === undefined, 'stream._storedError === undefined');
            assert(stream._state === 'writable', 'state must be writable');
            var controller = stream._writableStreamController;
            assert(controller !== undefined, 'controller must not be undefined');
            stream._state = 'erroring';
            stream._storedError = reason;
            var writer = stream._writer;

            if (writer !== undefined) {
              WritableStreamDefaultWriterEnsureReadyPromiseRejected(writer, reason);
            }

            if (WritableStreamHasOperationMarkedInFlight(stream) === false && controller._started === true) {
              WritableStreamFinishErroring(stream);
            }
          }

          function WritableStreamFinishErroring(stream) {
            assert(stream._state === 'erroring', 'stream._state === erroring');
            assert(WritableStreamHasOperationMarkedInFlight(stream) === false, 'WritableStreamHasOperationMarkedInFlight(stream) === false');
            stream._state = 'errored';

            stream._writableStreamController.__errorSteps();

            var storedError = stream._storedError;

            for (var i = 0; i < stream._writeRequests.length; i++) {
              var writeRequest = stream._writeRequests[i];

              writeRequest._reject(storedError);
            }

            stream._writeRequests = [];

            if (stream._pendingAbortRequest === undefined) {
              WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
              return;
            }

            var abortRequest = stream._pendingAbortRequest;
            stream._pendingAbortRequest = undefined;

            if (abortRequest._wasAlreadyErroring === true) {
              abortRequest._reject(storedError);

              WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
              return;
            }

            var promise = stream._writableStreamController.__abortSteps(abortRequest._reason);

            promise.then(function () {
              abortRequest._resolve();

              WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
            }, function (reason) {
              abortRequest._reject(reason);

              WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
            });
          }

          function WritableStreamFinishInFlightWrite(stream) {
            assert(stream._inFlightWriteRequest !== undefined);

            stream._inFlightWriteRequest._resolve(undefined);

            stream._inFlightWriteRequest = undefined;
          }

          function WritableStreamFinishInFlightWriteWithError(stream, error) {
            assert(stream._inFlightWriteRequest !== undefined);

            stream._inFlightWriteRequest._reject(error);

            stream._inFlightWriteRequest = undefined;
            assert(stream._state === 'writable' || stream._state === 'erroring');
            WritableStreamDealWithRejection(stream, error);
          }

          function WritableStreamFinishInFlightClose(stream) {
            assert(stream._inFlightCloseRequest !== undefined);

            stream._inFlightCloseRequest._resolve(undefined);

            stream._inFlightCloseRequest = undefined;
            var state = stream._state;
            assert(state === 'writable' || state === 'erroring');

            if (state === 'erroring') {
              stream._storedError = undefined;

              if (stream._pendingAbortRequest !== undefined) {
                stream._pendingAbortRequest._resolve();

                stream._pendingAbortRequest = undefined;
              }
            }

            stream._state = 'closed';
            var writer = stream._writer;

            if (writer !== undefined) {
              defaultWriterClosedPromiseResolve(writer);
            }

            assert(stream._pendingAbortRequest === undefined, 'stream._pendingAbortRequest === undefined');
            assert(stream._storedError === undefined, 'stream._storedError === undefined');
          }

          function WritableStreamFinishInFlightCloseWithError(stream, error) {
            assert(stream._inFlightCloseRequest !== undefined);

            stream._inFlightCloseRequest._reject(error);

            stream._inFlightCloseRequest = undefined;
            assert(stream._state === 'writable' || stream._state === 'erroring');

            if (stream._pendingAbortRequest !== undefined) {
              stream._pendingAbortRequest._reject(error);

              stream._pendingAbortRequest = undefined;
            }

            WritableStreamDealWithRejection(stream, error);
          }

          function WritableStreamCloseQueuedOrInFlight(stream) {
            if (stream._closeRequest === undefined && stream._inFlightCloseRequest === undefined) {
              return false;
            }

            return true;
          }

          function WritableStreamHasOperationMarkedInFlight(stream) {
            if (stream._inFlightWriteRequest === undefined && stream._inFlightCloseRequest === undefined) {
              return false;
            }

            return true;
          }

          function WritableStreamMarkCloseRequestInFlight(stream) {
            assert(stream._inFlightCloseRequest === undefined);
            assert(stream._closeRequest !== undefined);
            stream._inFlightCloseRequest = stream._closeRequest;
            stream._closeRequest = undefined;
          }

          function WritableStreamMarkFirstWriteRequestInFlight(stream) {
            assert(stream._inFlightWriteRequest === undefined, 'there must be no pending write request');
            assert(stream._writeRequests.length !== 0, 'writeRequests must not be empty');
            stream._inFlightWriteRequest = stream._writeRequests.shift();
          }

          function WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream) {
            assert(stream._state === 'errored', '_stream_.[[state]] is `"errored"`');

            if (stream._closeRequest !== undefined) {
              assert(stream._inFlightCloseRequest === undefined);

              stream._closeRequest._reject(stream._storedError);

              stream._closeRequest = undefined;
            }

            var writer = stream._writer;

            if (writer !== undefined) {
              defaultWriterClosedPromiseReject(writer, stream._storedError);

              writer._closedPromise.catch(function () {
              });
            }
          }

          function WritableStreamUpdateBackpressure(stream, backpressure) {
            assert(stream._state === 'writable');
            assert(WritableStreamCloseQueuedOrInFlight(stream) === false);
            var writer = stream._writer;

            if (writer !== undefined && backpressure !== stream._backpressure) {
              if (backpressure === true) {
                defaultWriterReadyPromiseReset(writer);
              } else {
                assert(backpressure === false);
                defaultWriterReadyPromiseResolve(writer);
              }
            }

            stream._backpressure = backpressure;
          }

          var WritableStreamDefaultWriter = function () {
            function WritableStreamDefaultWriter(stream) {
              _classCallCheck(this, WritableStreamDefaultWriter);

              if (IsWritableStream(stream) === false) {
                throw new TypeError('WritableStreamDefaultWriter can only be constructed with a WritableStream instance');
              }

              if (IsWritableStreamLocked(stream) === true) {
                throw new TypeError('This stream has already been locked for exclusive writing by another writer');
              }

              this._ownerWritableStream = stream;
              stream._writer = this;
              var state = stream._state;

              if (state === 'writable') {
                if (WritableStreamCloseQueuedOrInFlight(stream) === false && stream._backpressure === true) {
                  defaultWriterReadyPromiseInitialize(this);
                } else {
                  defaultWriterReadyPromiseInitializeAsResolved(this);
                }

                defaultWriterClosedPromiseInitialize(this);
              } else if (state === 'erroring') {
                defaultWriterReadyPromiseInitializeAsRejected(this, stream._storedError);

                this._readyPromise.catch(function () {
                });

                defaultWriterClosedPromiseInitialize(this);
              } else if (state === 'closed') {
                defaultWriterReadyPromiseInitializeAsResolved(this);
                defaultWriterClosedPromiseInitializeAsResolved(this);
              } else {
                assert(state === 'errored', 'state must be errored');
                var storedError = stream._storedError;
                defaultWriterReadyPromiseInitializeAsRejected(this, storedError);

                this._readyPromise.catch(function () {
                });

                defaultWriterClosedPromiseInitializeAsRejected(this, storedError);

                this._closedPromise.catch(function () {
                });
              }
            }

            _createClass(WritableStreamDefaultWriter, [{
              key: 'abort',
              value: function abort(reason) {
                if (IsWritableStreamDefaultWriter(this) === false) {
                  return Promise.reject(defaultWriterBrandCheckException('abort'));
                }

                if (this._ownerWritableStream === undefined) {
                  return Promise.reject(defaultWriterLockException('abort'));
                }

                return WritableStreamDefaultWriterAbort(this, reason);
              }
            }, {
              key: 'close',
              value: function close() {
                if (IsWritableStreamDefaultWriter(this) === false) {
                  return Promise.reject(defaultWriterBrandCheckException('close'));
                }

                var stream = this._ownerWritableStream;

                if (stream === undefined) {
                  return Promise.reject(defaultWriterLockException('close'));
                }

                if (WritableStreamCloseQueuedOrInFlight(stream) === true) {
                  return Promise.reject(new TypeError('cannot close an already-closing stream'));
                }

                return WritableStreamDefaultWriterClose(this);
              }
            }, {
              key: 'releaseLock',
              value: function releaseLock() {
                if (IsWritableStreamDefaultWriter(this) === false) {
                  throw defaultWriterBrandCheckException('releaseLock');
                }

                var stream = this._ownerWritableStream;

                if (stream === undefined) {
                  return;
                }

                assert(stream._writer !== undefined);
                WritableStreamDefaultWriterRelease(this);
              }
            }, {
              key: 'write',
              value: function write(chunk) {
                if (IsWritableStreamDefaultWriter(this) === false) {
                  return Promise.reject(defaultWriterBrandCheckException('write'));
                }

                if (this._ownerWritableStream === undefined) {
                  return Promise.reject(defaultWriterLockException('write to'));
                }

                return WritableStreamDefaultWriterWrite(this, chunk);
              }
            }, {
              key: 'closed',
              get: function get() {
                if (IsWritableStreamDefaultWriter(this) === false) {
                  return Promise.reject(defaultWriterBrandCheckException('closed'));
                }

                return this._closedPromise;
              }
            }, {
              key: 'desiredSize',
              get: function get() {
                if (IsWritableStreamDefaultWriter(this) === false) {
                  throw defaultWriterBrandCheckException('desiredSize');
                }

                if (this._ownerWritableStream === undefined) {
                  throw defaultWriterLockException('desiredSize');
                }

                return WritableStreamDefaultWriterGetDesiredSize(this);
              }
            }, {
              key: 'ready',
              get: function get() {
                if (IsWritableStreamDefaultWriter(this) === false) {
                  return Promise.reject(defaultWriterBrandCheckException('ready'));
                }

                return this._readyPromise;
              }
            }]);

            return WritableStreamDefaultWriter;
          }();

          function IsWritableStreamDefaultWriter(x) {
            if (!typeIsObject(x)) {
              return false;
            }

            if (!Object.prototype.hasOwnProperty.call(x, '_ownerWritableStream')) {
              return false;
            }

            return true;
          }

          function WritableStreamDefaultWriterAbort(writer, reason) {
            var stream = writer._ownerWritableStream;
            assert(stream !== undefined);
            return WritableStreamAbort(stream, reason);
          }

          function WritableStreamDefaultWriterClose(writer) {
            var stream = writer._ownerWritableStream;
            assert(stream !== undefined);
            var state = stream._state;

            if (state === 'closed' || state === 'errored') {
              return Promise.reject(new TypeError('The stream (in ' + state + ' state) is not in the writable state and cannot be closed'));
            }

            assert(state === 'writable' || state === 'erroring');
            assert(WritableStreamCloseQueuedOrInFlight(stream) === false);
            var promise = new Promise(function (resolve, reject) {
              var closeRequest = {
                _resolve: resolve,
                _reject: reject
              };
              stream._closeRequest = closeRequest;
            });

            if (stream._backpressure === true && state === 'writable') {
              defaultWriterReadyPromiseResolve(writer);
            }

            WritableStreamDefaultControllerClose(stream._writableStreamController);
            return promise;
          }

          function WritableStreamDefaultWriterCloseWithErrorPropagation(writer) {
            var stream = writer._ownerWritableStream;
            assert(stream !== undefined);
            var state = stream._state;

            if (WritableStreamCloseQueuedOrInFlight(stream) === true || state === 'closed') {
              return Promise.resolve();
            }

            if (state === 'errored') {
              return Promise.reject(stream._storedError);
            }

            assert(state === 'writable' || state === 'erroring');
            return WritableStreamDefaultWriterClose(writer);
          }

          function WritableStreamDefaultWriterEnsureClosedPromiseRejected(writer, error) {
            if (writer._closedPromiseState === 'pending') {
              defaultWriterClosedPromiseReject(writer, error);
            } else {
              defaultWriterClosedPromiseResetToRejected(writer, error);
            }

            writer._closedPromise.catch(function () {
            });
          }

          function WritableStreamDefaultWriterEnsureReadyPromiseRejected(writer, error) {
            if (writer._readyPromiseState === 'pending') {
              defaultWriterReadyPromiseReject(writer, error);
            } else {
              defaultWriterReadyPromiseResetToRejected(writer, error);
            }

            writer._readyPromise.catch(function () {
            });
          }

          function WritableStreamDefaultWriterGetDesiredSize(writer) {
            var stream = writer._ownerWritableStream;
            var state = stream._state;

            if (state === 'errored' || state === 'erroring') {
              return null;
            }

            if (state === 'closed') {
              return 0;
            }

            return WritableStreamDefaultControllerGetDesiredSize(stream._writableStreamController);
          }

          function WritableStreamDefaultWriterRelease(writer) {
            var stream = writer._ownerWritableStream;
            assert(stream !== undefined);
            assert(stream._writer === writer);
            var releasedError = new TypeError('Writer was released and can no longer be used to monitor the stream\'s closedness');
            WritableStreamDefaultWriterEnsureReadyPromiseRejected(writer, releasedError);
            WritableStreamDefaultWriterEnsureClosedPromiseRejected(writer, releasedError);
            stream._writer = undefined;
            writer._ownerWritableStream = undefined;
          }

          function WritableStreamDefaultWriterWrite(writer, chunk) {
            var stream = writer._ownerWritableStream;
            assert(stream !== undefined);
            var controller = stream._writableStreamController;
            var chunkSize = WritableStreamDefaultControllerGetChunkSize(controller, chunk);

            if (stream !== writer._ownerWritableStream) {
              return Promise.reject(defaultWriterLockException('write to'));
            }

            var state = stream._state;

            if (state === 'errored') {
              return Promise.reject(stream._storedError);
            }

            if (WritableStreamCloseQueuedOrInFlight(stream) === true || state === 'closed') {
              return Promise.reject(new TypeError('The stream is closing or closed and cannot be written to'));
            }

            if (state === 'erroring') {
              return Promise.reject(stream._storedError);
            }

            assert(state === 'writable');
            var promise = WritableStreamAddWriteRequest(stream);
            WritableStreamDefaultControllerWrite(controller, chunk, chunkSize);
            return promise;
          }

          var WritableStreamDefaultController = function () {
            function WritableStreamDefaultController(stream, underlyingSink, size, highWaterMark) {
              _classCallCheck(this, WritableStreamDefaultController);

              if (IsWritableStream(stream) === false) {
                throw new TypeError('WritableStreamDefaultController can only be constructed with a WritableStream instance');
              }

              if (stream._writableStreamController !== undefined) {
                throw new TypeError('WritableStreamDefaultController instances can only be created by the WritableStream constructor');
              }

              this._controlledWritableStream = stream;
              this._underlyingSink = underlyingSink;
              this._queue = undefined;
              this._queueTotalSize = undefined;
              ResetQueue(this);
              this._started = false;
              var normalizedStrategy = ValidateAndNormalizeQueuingStrategy(size, highWaterMark);
              this._strategySize = normalizedStrategy.size;
              this._strategyHWM = normalizedStrategy.highWaterMark;
              var backpressure = WritableStreamDefaultControllerGetBackpressure(this);
              WritableStreamUpdateBackpressure(stream, backpressure);
            }

            _createClass(WritableStreamDefaultController, [{
              key: 'error',
              value: function error(e) {
                if (IsWritableStreamDefaultController(this) === false) {
                  throw new TypeError('WritableStreamDefaultController.prototype.error can only be used on a WritableStreamDefaultController');
                }

                var state = this._controlledWritableStream._state;

                if (state !== 'writable') {
                  return;
                }

                WritableStreamDefaultControllerError(this, e);
              }
            }, {
              key: '__abortSteps',
              value: function __abortSteps(reason) {
                return PromiseInvokeOrNoop(this._underlyingSink, 'abort', [reason]);
              }
            }, {
              key: '__errorSteps',
              value: function __errorSteps() {
                ResetQueue(this);
              }
            }, {
              key: '__startSteps',
              value: function __startSteps() {
                var _this = this;

                var startResult = InvokeOrNoop(this._underlyingSink, 'start', [this]);
                var stream = this._controlledWritableStream;
                Promise.resolve(startResult).then(function () {
                  assert(stream._state === 'writable' || stream._state === 'erroring');
                  _this._started = true;
                  WritableStreamDefaultControllerAdvanceQueueIfNeeded(_this);
                }, function (r) {
                  assert(stream._state === 'writable' || stream._state === 'erroring');
                  _this._started = true;
                  WritableStreamDealWithRejection(stream, r);
                }).catch(rethrowAssertionErrorRejection);
              }
            }]);

            return WritableStreamDefaultController;
          }();

          function WritableStreamDefaultControllerClose(controller) {
            EnqueueValueWithSize(controller, 'close', 0);
            WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);
          }

          function WritableStreamDefaultControllerGetChunkSize(controller, chunk) {
            var strategySize = controller._strategySize;

            if (strategySize === undefined) {
              return 1;
            }

            try {
              return strategySize(chunk);
            } catch (chunkSizeE) {
              WritableStreamDefaultControllerErrorIfNeeded(controller, chunkSizeE);
              return 1;
            }
          }

          function WritableStreamDefaultControllerGetDesiredSize(controller) {
            return controller._strategyHWM - controller._queueTotalSize;
          }

          function WritableStreamDefaultControllerWrite(controller, chunk, chunkSize) {
            var writeRecord = {
              chunk: chunk
            };

            try {
              EnqueueValueWithSize(controller, writeRecord, chunkSize);
            } catch (enqueueE) {
              WritableStreamDefaultControllerErrorIfNeeded(controller, enqueueE);
              return;
            }

            var stream = controller._controlledWritableStream;

            if (WritableStreamCloseQueuedOrInFlight(stream) === false && stream._state === 'writable') {
              var backpressure = WritableStreamDefaultControllerGetBackpressure(controller);
              WritableStreamUpdateBackpressure(stream, backpressure);
            }

            WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);
          }

          function IsWritableStreamDefaultController(x) {
            if (!typeIsObject(x)) {
              return false;
            }

            if (!Object.prototype.hasOwnProperty.call(x, '_underlyingSink')) {
              return false;
            }

            return true;
          }

          function WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller) {
            var stream = controller._controlledWritableStream;

            if (controller._started === false) {
              return;
            }

            if (stream._inFlightWriteRequest !== undefined) {
              return;
            }

            var state = stream._state;

            if (state === 'closed' || state === 'errored') {
              return;
            }

            if (state === 'erroring') {
              WritableStreamFinishErroring(stream);
              return;
            }

            if (controller._queue.length === 0) {
              return;
            }

            var writeRecord = PeekQueueValue(controller);

            if (writeRecord === 'close') {
              WritableStreamDefaultControllerProcessClose(controller);
            } else {
              WritableStreamDefaultControllerProcessWrite(controller, writeRecord.chunk);
            }
          }

          function WritableStreamDefaultControllerErrorIfNeeded(controller, error) {
            if (controller._controlledWritableStream._state === 'writable') {
              WritableStreamDefaultControllerError(controller, error);
            }
          }

          function WritableStreamDefaultControllerProcessClose(controller) {
            var stream = controller._controlledWritableStream;
            WritableStreamMarkCloseRequestInFlight(stream);
            DequeueValue(controller);
            assert(controller._queue.length === 0, 'queue must be empty once the final write record is dequeued');
            var sinkClosePromise = PromiseInvokeOrNoop(controller._underlyingSink, 'close', []);
            sinkClosePromise.then(function () {
              WritableStreamFinishInFlightClose(stream);
            }, function (reason) {
              WritableStreamFinishInFlightCloseWithError(stream, reason);
            }).catch(rethrowAssertionErrorRejection);
          }

          function WritableStreamDefaultControllerProcessWrite(controller, chunk) {
            var stream = controller._controlledWritableStream;
            WritableStreamMarkFirstWriteRequestInFlight(stream);
            var sinkWritePromise = PromiseInvokeOrNoop(controller._underlyingSink, 'write', [chunk, controller]);
            sinkWritePromise.then(function () {
              WritableStreamFinishInFlightWrite(stream);
              var state = stream._state;
              assert(state === 'writable' || state === 'erroring');
              DequeueValue(controller);

              if (WritableStreamCloseQueuedOrInFlight(stream) === false && state === 'writable') {
                var backpressure = WritableStreamDefaultControllerGetBackpressure(controller);
                WritableStreamUpdateBackpressure(stream, backpressure);
              }

              WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);
            }, function (reason) {
              WritableStreamFinishInFlightWriteWithError(stream, reason);
            }).catch(rethrowAssertionErrorRejection);
          }

          function WritableStreamDefaultControllerGetBackpressure(controller) {
            var desiredSize = WritableStreamDefaultControllerGetDesiredSize(controller);
            return desiredSize <= 0;
          }

          function WritableStreamDefaultControllerError(controller, error) {
            var stream = controller._controlledWritableStream;
            assert(stream._state === 'writable');
            WritableStreamStartErroring(stream, error);
          }

          function streamBrandCheckException(name) {
            return new TypeError('WritableStream.prototype.' + name + ' can only be used on a WritableStream');
          }

          function defaultWriterBrandCheckException(name) {
            return new TypeError('WritableStreamDefaultWriter.prototype.' + name + ' can only be used on a WritableStreamDefaultWriter');
          }

          function defaultWriterLockException(name) {
            return new TypeError('Cannot ' + name + ' a stream using a released writer');
          }

          function defaultWriterClosedPromiseInitialize(writer) {
            writer._closedPromise = new Promise(function (resolve, reject) {
              writer._closedPromise_resolve = resolve;
              writer._closedPromise_reject = reject;
              writer._closedPromiseState = 'pending';
            });
          }

          function defaultWriterClosedPromiseInitializeAsRejected(writer, reason) {
            writer._closedPromise = Promise.reject(reason);
            writer._closedPromise_resolve = undefined;
            writer._closedPromise_reject = undefined;
            writer._closedPromiseState = 'rejected';
          }

          function defaultWriterClosedPromiseInitializeAsResolved(writer) {
            writer._closedPromise = Promise.resolve(undefined);
            writer._closedPromise_resolve = undefined;
            writer._closedPromise_reject = undefined;
            writer._closedPromiseState = 'resolved';
          }

          function defaultWriterClosedPromiseReject(writer, reason) {
            assert(writer._closedPromise_resolve !== undefined, 'writer._closedPromise_resolve !== undefined');
            assert(writer._closedPromise_reject !== undefined, 'writer._closedPromise_reject !== undefined');
            assert(writer._closedPromiseState === 'pending', 'writer._closedPromiseState is pending');

            writer._closedPromise_reject(reason);

            writer._closedPromise_resolve = undefined;
            writer._closedPromise_reject = undefined;
            writer._closedPromiseState = 'rejected';
          }

          function defaultWriterClosedPromiseResetToRejected(writer, reason) {
            assert(writer._closedPromise_resolve === undefined, 'writer._closedPromise_resolve === undefined');
            assert(writer._closedPromise_reject === undefined, 'writer._closedPromise_reject === undefined');
            assert(writer._closedPromiseState !== 'pending', 'writer._closedPromiseState is not pending');
            writer._closedPromise = Promise.reject(reason);
            writer._closedPromiseState = 'rejected';
          }

          function defaultWriterClosedPromiseResolve(writer) {
            assert(writer._closedPromise_resolve !== undefined, 'writer._closedPromise_resolve !== undefined');
            assert(writer._closedPromise_reject !== undefined, 'writer._closedPromise_reject !== undefined');
            assert(writer._closedPromiseState === 'pending', 'writer._closedPromiseState is pending');

            writer._closedPromise_resolve(undefined);

            writer._closedPromise_resolve = undefined;
            writer._closedPromise_reject = undefined;
            writer._closedPromiseState = 'resolved';
          }

          function defaultWriterReadyPromiseInitialize(writer) {
            writer._readyPromise = new Promise(function (resolve, reject) {
              writer._readyPromise_resolve = resolve;
              writer._readyPromise_reject = reject;
            });
            writer._readyPromiseState = 'pending';
          }

          function defaultWriterReadyPromiseInitializeAsRejected(writer, reason) {
            writer._readyPromise = Promise.reject(reason);
            writer._readyPromise_resolve = undefined;
            writer._readyPromise_reject = undefined;
            writer._readyPromiseState = 'rejected';
          }

          function defaultWriterReadyPromiseInitializeAsResolved(writer) {
            writer._readyPromise = Promise.resolve(undefined);
            writer._readyPromise_resolve = undefined;
            writer._readyPromise_reject = undefined;
            writer._readyPromiseState = 'fulfilled';
          }

          function defaultWriterReadyPromiseReject(writer, reason) {
            assert(writer._readyPromise_resolve !== undefined, 'writer._readyPromise_resolve !== undefined');
            assert(writer._readyPromise_reject !== undefined, 'writer._readyPromise_reject !== undefined');

            writer._readyPromise_reject(reason);

            writer._readyPromise_resolve = undefined;
            writer._readyPromise_reject = undefined;
            writer._readyPromiseState = 'rejected';
          }

          function defaultWriterReadyPromiseReset(writer) {
            assert(writer._readyPromise_resolve === undefined, 'writer._readyPromise_resolve === undefined');
            assert(writer._readyPromise_reject === undefined, 'writer._readyPromise_reject === undefined');
            writer._readyPromise = new Promise(function (resolve, reject) {
              writer._readyPromise_resolve = resolve;
              writer._readyPromise_reject = reject;
            });
            writer._readyPromiseState = 'pending';
          }

          function defaultWriterReadyPromiseResetToRejected(writer, reason) {
            assert(writer._readyPromise_resolve === undefined, 'writer._readyPromise_resolve === undefined');
            assert(writer._readyPromise_reject === undefined, 'writer._readyPromise_reject === undefined');
            writer._readyPromise = Promise.reject(reason);
            writer._readyPromiseState = 'rejected';
          }

          function defaultWriterReadyPromiseResolve(writer) {
            assert(writer._readyPromise_resolve !== undefined, 'writer._readyPromise_resolve !== undefined');
            assert(writer._readyPromise_reject !== undefined, 'writer._readyPromise_reject !== undefined');

            writer._readyPromise_resolve(undefined);

            writer._readyPromise_resolve = undefined;
            writer._readyPromise_reject = undefined;
            writer._readyPromiseState = 'fulfilled';
          }
        }, function (module, exports, __w_pdfjs_require__) {
          "use strict";

          var _require = __w_pdfjs_require__(0),
            IsFiniteNonNegativeNumber = _require.IsFiniteNonNegativeNumber;

          var _require2 = __w_pdfjs_require__(1),
            assert = _require2.assert;

          exports.DequeueValue = function (container) {
            assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: DequeueValue should only be used on containers with [[queue]] and [[queueTotalSize]].');
            assert(container._queue.length > 0, 'Spec-level failure: should never dequeue from an empty queue.');

            var pair = container._queue.shift();

            container._queueTotalSize -= pair.size;

            if (container._queueTotalSize < 0) {
              container._queueTotalSize = 0;
            }

            return pair.value;
          };

          exports.EnqueueValueWithSize = function (container, value, size) {
            assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: EnqueueValueWithSize should only be used on containers with [[queue]] and ' + '[[queueTotalSize]].');
            size = Number(size);

            if (!IsFiniteNonNegativeNumber(size)) {
              throw new RangeError('Size must be a finite, non-NaN, non-negative number.');
            }

            container._queue.push({
              value: value,
              size: size
            });

            container._queueTotalSize += size;
          };

          exports.PeekQueueValue = function (container) {
            assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: PeekQueueValue should only be used on containers with [[queue]] and [[queueTotalSize]].');
            assert(container._queue.length > 0, 'Spec-level failure: should never peek at an empty queue.');
            var pair = container._queue[0];
            return pair.value;
          };

          exports.ResetQueue = function (container) {
            assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: ResetQueue should only be used on containers with [[queue]] and [[queueTotalSize]].');
            container._queue = [];
            container._queueTotalSize = 0;
          };
        }, function (module, exports, __w_pdfjs_require__) {
          "use strict";

          var _createClass = function () {
            function defineProperties(target, props) {
              for (var i = 0; i < props.length; i++) {
                var descriptor = props[i];
                descriptor.enumerable = descriptor.enumerable || false;
                descriptor.configurable = true;
                if ("value" in descriptor) descriptor.writable = true;
                Object.defineProperty(target, descriptor.key, descriptor);
              }
            }

            return function (Constructor, protoProps, staticProps) {
              if (protoProps) defineProperties(Constructor.prototype, protoProps);
              if (staticProps) defineProperties(Constructor, staticProps);
              return Constructor;
            };
          }();

          function _classCallCheck(instance, Constructor) {
            if (!(instance instanceof Constructor)) {
              throw new TypeError("Cannot call a class as a function");
            }
          }

          var _require = __w_pdfjs_require__(0),
            ArrayBufferCopy = _require.ArrayBufferCopy,
            CreateIterResultObject = _require.CreateIterResultObject,
            IsFiniteNonNegativeNumber = _require.IsFiniteNonNegativeNumber,
            InvokeOrNoop = _require.InvokeOrNoop,
            PromiseInvokeOrNoop = _require.PromiseInvokeOrNoop,
            TransferArrayBuffer = _require.TransferArrayBuffer,
            ValidateAndNormalizeQueuingStrategy = _require.ValidateAndNormalizeQueuingStrategy,
            ValidateAndNormalizeHighWaterMark = _require.ValidateAndNormalizeHighWaterMark;

          var _require2 = __w_pdfjs_require__(0),
            createArrayFromList = _require2.createArrayFromList,
            createDataProperty = _require2.createDataProperty,
            typeIsObject = _require2.typeIsObject;

          var _require3 = __w_pdfjs_require__(1),
            assert = _require3.assert,
            rethrowAssertionErrorRejection = _require3.rethrowAssertionErrorRejection;

          var _require4 = __w_pdfjs_require__(3),
            DequeueValue = _require4.DequeueValue,
            EnqueueValueWithSize = _require4.EnqueueValueWithSize,
            ResetQueue = _require4.ResetQueue;

          var _require5 = __w_pdfjs_require__(2),
            AcquireWritableStreamDefaultWriter = _require5.AcquireWritableStreamDefaultWriter,
            IsWritableStream = _require5.IsWritableStream,
            IsWritableStreamLocked = _require5.IsWritableStreamLocked,
            WritableStreamAbort = _require5.WritableStreamAbort,
            WritableStreamDefaultWriterCloseWithErrorPropagation = _require5.WritableStreamDefaultWriterCloseWithErrorPropagation,
            WritableStreamDefaultWriterRelease = _require5.WritableStreamDefaultWriterRelease,
            WritableStreamDefaultWriterWrite = _require5.WritableStreamDefaultWriterWrite,
            WritableStreamCloseQueuedOrInFlight = _require5.WritableStreamCloseQueuedOrInFlight;

          var ReadableStream = function () {
            function ReadableStream() {
              var underlyingSource = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

              var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
                size = _ref.size,
                highWaterMark = _ref.highWaterMark;

              _classCallCheck(this, ReadableStream);

              this._state = 'readable';
              this._reader = undefined;
              this._storedError = undefined;
              this._disturbed = false;
              this._readableStreamController = undefined;
              var type = underlyingSource.type;
              var typeString = String(type);

              if (typeString === 'bytes') {
                if (highWaterMark === undefined) {
                  highWaterMark = 0;
                }

                this._readableStreamController = new ReadableByteStreamController(this, underlyingSource, highWaterMark);
              } else if (type === undefined) {
                if (highWaterMark === undefined) {
                  highWaterMark = 1;
                }

                this._readableStreamController = new ReadableStreamDefaultController(this, underlyingSource, size, highWaterMark);
              } else {
                throw new RangeError('Invalid type is specified');
              }
            }

            _createClass(ReadableStream, [{
              key: 'cancel',
              value: function cancel(reason) {
                if (IsReadableStream(this) === false) {
                  return Promise.reject(streamBrandCheckException('cancel'));
                }

                if (IsReadableStreamLocked(this) === true) {
                  return Promise.reject(new TypeError('Cannot cancel a stream that already has a reader'));
                }

                return ReadableStreamCancel(this, reason);
              }
            }, {
              key: 'getReader',
              value: function getReader() {
                var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
                  mode = _ref2.mode;

                if (IsReadableStream(this) === false) {
                  throw streamBrandCheckException('getReader');
                }

                if (mode === undefined) {
                  return AcquireReadableStreamDefaultReader(this);
                }

                mode = String(mode);

                if (mode === 'byob') {
                  return AcquireReadableStreamBYOBReader(this);
                }

                throw new RangeError('Invalid mode is specified');
              }
            }, {
              key: 'pipeThrough',
              value: function pipeThrough(_ref3, options) {
                var writable = _ref3.writable,
                  readable = _ref3.readable;
                var promise = this.pipeTo(writable, options);
                ifIsObjectAndHasAPromiseIsHandledInternalSlotSetPromiseIsHandledToTrue(promise);
                return readable;
              }
            }, {
              key: 'pipeTo',
              value: function pipeTo(dest) {
                var _this = this;

                var _ref4 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
                  preventClose = _ref4.preventClose,
                  preventAbort = _ref4.preventAbort,
                  preventCancel = _ref4.preventCancel;

                if (IsReadableStream(this) === false) {
                  return Promise.reject(streamBrandCheckException('pipeTo'));
                }

                if (IsWritableStream(dest) === false) {
                  return Promise.reject(new TypeError('ReadableStream.prototype.pipeTo\'s first argument must be a WritableStream'));
                }

                preventClose = Boolean(preventClose);
                preventAbort = Boolean(preventAbort);
                preventCancel = Boolean(preventCancel);

                if (IsReadableStreamLocked(this) === true) {
                  return Promise.reject(new TypeError('ReadableStream.prototype.pipeTo cannot be used on a locked ReadableStream'));
                }

                if (IsWritableStreamLocked(dest) === true) {
                  return Promise.reject(new TypeError('ReadableStream.prototype.pipeTo cannot be used on a locked WritableStream'));
                }

                var reader = AcquireReadableStreamDefaultReader(this);
                var writer = AcquireWritableStreamDefaultWriter(dest);
                var shuttingDown = false;
                var currentWrite = Promise.resolve();
                return new Promise(function (resolve, reject) {
                  function pipeLoop() {
                    currentWrite = Promise.resolve();

                    if (shuttingDown === true) {
                      return Promise.resolve();
                    }

                    return writer._readyPromise.then(function () {
                      return ReadableStreamDefaultReaderRead(reader).then(function (_ref5) {
                        var value = _ref5.value,
                          done = _ref5.done;

                        if (done === true) {
                          return;
                        }

                        currentWrite = WritableStreamDefaultWriterWrite(writer, value).catch(function () {
                        });
                      });
                    }).then(pipeLoop);
                  }

                  isOrBecomesErrored(_this, reader._closedPromise, function (storedError) {
                    if (preventAbort === false) {
                      shutdownWithAction(function () {
                        return WritableStreamAbort(dest, storedError);
                      }, true, storedError);
                    } else {
                      shutdown(true, storedError);
                    }
                  });
                  isOrBecomesErrored(dest, writer._closedPromise, function (storedError) {
                    if (preventCancel === false) {
                      shutdownWithAction(function () {
                        return ReadableStreamCancel(_this, storedError);
                      }, true, storedError);
                    } else {
                      shutdown(true, storedError);
                    }
                  });
                  isOrBecomesClosed(_this, reader._closedPromise, function () {
                    if (preventClose === false) {
                      shutdownWithAction(function () {
                        return WritableStreamDefaultWriterCloseWithErrorPropagation(writer);
                      });
                    } else {
                      shutdown();
                    }
                  });

                  if (WritableStreamCloseQueuedOrInFlight(dest) === true || dest._state === 'closed') {
                    var destClosed = new TypeError('the destination writable stream closed before all data could be piped to it');

                    if (preventCancel === false) {
                      shutdownWithAction(function () {
                        return ReadableStreamCancel(_this, destClosed);
                      }, true, destClosed);
                    } else {
                      shutdown(true, destClosed);
                    }
                  }

                  pipeLoop().catch(function (err) {
                    currentWrite = Promise.resolve();
                    rethrowAssertionErrorRejection(err);
                  });

                  function waitForWritesToFinish() {
                    var oldCurrentWrite = currentWrite;
                    return currentWrite.then(function () {
                      return oldCurrentWrite !== currentWrite ? waitForWritesToFinish() : undefined;
                    });
                  }

                  function isOrBecomesErrored(stream, promise, action) {
                    if (stream._state === 'errored') {
                      action(stream._storedError);
                    } else {
                      promise.catch(action).catch(rethrowAssertionErrorRejection);
                    }
                  }

                  function isOrBecomesClosed(stream, promise, action) {
                    if (stream._state === 'closed') {
                      action();
                    } else {
                      promise.then(action).catch(rethrowAssertionErrorRejection);
                    }
                  }

                  function shutdownWithAction(action, originalIsError, originalError) {
                    if (shuttingDown === true) {
                      return;
                    }

                    shuttingDown = true;

                    if (dest._state === 'writable' && WritableStreamCloseQueuedOrInFlight(dest) === false) {
                      waitForWritesToFinish().then(doTheRest);
                    } else {
                      doTheRest();
                    }

                    function doTheRest() {
                      action().then(function () {
                        return finalize(originalIsError, originalError);
                      }, function (newError) {
                        return finalize(true, newError);
                      }).catch(rethrowAssertionErrorRejection);
                    }
                  }

                  function shutdown(isError, error) {
                    if (shuttingDown === true) {
                      return;
                    }

                    shuttingDown = true;

                    if (dest._state === 'writable' && WritableStreamCloseQueuedOrInFlight(dest) === false) {
                      waitForWritesToFinish().then(function () {
                        return finalize(isError, error);
                      }).catch(rethrowAssertionErrorRejection);
                    } else {
                      finalize(isError, error);
                    }
                  }

                  function finalize(isError, error) {
                    WritableStreamDefaultWriterRelease(writer);
                    ReadableStreamReaderGenericRelease(reader);

                    if (isError) {
                      reject(error);
                    } else {
                      resolve(undefined);
                    }
                  }
                });
              }
            }, {
              key: 'tee',
              value: function tee() {
                if (IsReadableStream(this) === false) {
                  throw streamBrandCheckException('tee');
                }

                var branches = ReadableStreamTee(this, false);
                return createArrayFromList(branches);
              }
            }, {
              key: 'locked',
              get: function get() {
                if (IsReadableStream(this) === false) {
                  throw streamBrandCheckException('locked');
                }

                return IsReadableStreamLocked(this);
              }
            }]);

            return ReadableStream;
          }();

          module.exports = {
            ReadableStream: ReadableStream,
            IsReadableStreamDisturbed: IsReadableStreamDisturbed,
            ReadableStreamDefaultControllerClose: ReadableStreamDefaultControllerClose,
            ReadableStreamDefaultControllerEnqueue: ReadableStreamDefaultControllerEnqueue,
            ReadableStreamDefaultControllerError: ReadableStreamDefaultControllerError,
            ReadableStreamDefaultControllerGetDesiredSize: ReadableStreamDefaultControllerGetDesiredSize
          };

          function AcquireReadableStreamBYOBReader(stream) {
            return new ReadableStreamBYOBReader(stream);
          }

          function AcquireReadableStreamDefaultReader(stream) {
            return new ReadableStreamDefaultReader(stream);
          }

          function IsReadableStream(x) {
            if (!typeIsObject(x)) {
              return false;
            }

            if (!Object.prototype.hasOwnProperty.call(x, '_readableStreamController')) {
              return false;
            }

            return true;
          }

          function IsReadableStreamDisturbed(stream) {
            assert(IsReadableStream(stream) === true, 'IsReadableStreamDisturbed should only be used on known readable streams');
            return stream._disturbed;
          }

          function IsReadableStreamLocked(stream) {
            assert(IsReadableStream(stream) === true, 'IsReadableStreamLocked should only be used on known readable streams');

            if (stream._reader === undefined) {
              return false;
            }

            return true;
          }

          function ReadableStreamTee(stream, cloneForBranch2) {
            assert(IsReadableStream(stream) === true);
            assert(typeof cloneForBranch2 === 'boolean');
            var reader = AcquireReadableStreamDefaultReader(stream);
            var teeState = {
              closedOrErrored: false,
              canceled1: false,
              canceled2: false,
              reason1: undefined,
              reason2: undefined
            };
            teeState.promise = new Promise(function (resolve) {
              teeState._resolve = resolve;
            });
            var pull = create_ReadableStreamTeePullFunction();
            pull._reader = reader;
            pull._teeState = teeState;
            pull._cloneForBranch2 = cloneForBranch2;
            var cancel1 = create_ReadableStreamTeeBranch1CancelFunction();
            cancel1._stream = stream;
            cancel1._teeState = teeState;
            var cancel2 = create_ReadableStreamTeeBranch2CancelFunction();
            cancel2._stream = stream;
            cancel2._teeState = teeState;
            var underlyingSource1 = Object.create(Object.prototype);
            createDataProperty(underlyingSource1, 'pull', pull);
            createDataProperty(underlyingSource1, 'cancel', cancel1);
            var branch1Stream = new ReadableStream(underlyingSource1);
            var underlyingSource2 = Object.create(Object.prototype);
            createDataProperty(underlyingSource2, 'pull', pull);
            createDataProperty(underlyingSource2, 'cancel', cancel2);
            var branch2Stream = new ReadableStream(underlyingSource2);
            pull._branch1 = branch1Stream._readableStreamController;
            pull._branch2 = branch2Stream._readableStreamController;

            reader._closedPromise.catch(function (r) {
              if (teeState.closedOrErrored === true) {
                return;
              }

              ReadableStreamDefaultControllerError(pull._branch1, r);
              ReadableStreamDefaultControllerError(pull._branch2, r);
              teeState.closedOrErrored = true;
            });

            return [branch1Stream, branch2Stream];
          }

          function create_ReadableStreamTeePullFunction() {
            function f() {
              var reader = f._reader,
                branch1 = f._branch1,
                branch2 = f._branch2,
                teeState = f._teeState;
              return ReadableStreamDefaultReaderRead(reader).then(function (result) {
                assert(typeIsObject(result));
                var value = result.value;
                var done = result.done;
                assert(typeof done === 'boolean');

                if (done === true && teeState.closedOrErrored === false) {
                  if (teeState.canceled1 === false) {
                    ReadableStreamDefaultControllerClose(branch1);
                  }

                  if (teeState.canceled2 === false) {
                    ReadableStreamDefaultControllerClose(branch2);
                  }

                  teeState.closedOrErrored = true;
                }

                if (teeState.closedOrErrored === true) {
                  return;
                }

                var value1 = value;
                var value2 = value;

                if (teeState.canceled1 === false) {
                  ReadableStreamDefaultControllerEnqueue(branch1, value1);
                }

                if (teeState.canceled2 === false) {
                  ReadableStreamDefaultControllerEnqueue(branch2, value2);
                }
              });
            }

            return f;
          }

          function create_ReadableStreamTeeBranch1CancelFunction() {
            function f(reason) {
              var stream = f._stream,
                teeState = f._teeState;
              teeState.canceled1 = true;
              teeState.reason1 = reason;

              if (teeState.canceled2 === true) {
                var compositeReason = createArrayFromList([teeState.reason1, teeState.reason2]);
                var cancelResult = ReadableStreamCancel(stream, compositeReason);

                teeState._resolve(cancelResult);
              }

              return teeState.promise;
            }

            return f;
          }

          function create_ReadableStreamTeeBranch2CancelFunction() {
            function f(reason) {
              var stream = f._stream,
                teeState = f._teeState;
              teeState.canceled2 = true;
              teeState.reason2 = reason;

              if (teeState.canceled1 === true) {
                var compositeReason = createArrayFromList([teeState.reason1, teeState.reason2]);
                var cancelResult = ReadableStreamCancel(stream, compositeReason);

                teeState._resolve(cancelResult);
              }

              return teeState.promise;
            }

            return f;
          }

          function ReadableStreamAddReadIntoRequest(stream) {
            assert(IsReadableStreamBYOBReader(stream._reader) === true);
            assert(stream._state === 'readable' || stream._state === 'closed');
            var promise = new Promise(function (resolve, reject) {
              var readIntoRequest = {
                _resolve: resolve,
                _reject: reject
              };

              stream._reader._readIntoRequests.push(readIntoRequest);
            });
            return promise;
          }

          function ReadableStreamAddReadRequest(stream) {
            assert(IsReadableStreamDefaultReader(stream._reader) === true);
            assert(stream._state === 'readable');
            var promise = new Promise(function (resolve, reject) {
              var readRequest = {
                _resolve: resolve,
                _reject: reject
              };

              stream._reader._readRequests.push(readRequest);
            });
            return promise;
          }

          function ReadableStreamCancel(stream, reason) {
            stream._disturbed = true;

            if (stream._state === 'closed') {
              return Promise.resolve(undefined);
            }

            if (stream._state === 'errored') {
              return Promise.reject(stream._storedError);
            }

            ReadableStreamClose(stream);

            var sourceCancelPromise = stream._readableStreamController.__cancelSteps(reason);

            return sourceCancelPromise.then(function () {
              return undefined;
            });
          }

          function ReadableStreamClose(stream) {
            assert(stream._state === 'readable');
            stream._state = 'closed';
            var reader = stream._reader;

            if (reader === undefined) {
              return undefined;
            }

            if (IsReadableStreamDefaultReader(reader) === true) {
              for (var i = 0; i < reader._readRequests.length; i++) {
                var _resolve = reader._readRequests[i]._resolve;

                _resolve(CreateIterResultObject(undefined, true));
              }

              reader._readRequests = [];
            }

            defaultReaderClosedPromiseResolve(reader);
            return undefined;
          }

          function ReadableStreamError(stream, e) {
            assert(IsReadableStream(stream) === true, 'stream must be ReadableStream');
            assert(stream._state === 'readable', 'state must be readable');
            stream._state = 'errored';
            stream._storedError = e;
            var reader = stream._reader;

            if (reader === undefined) {
              return undefined;
            }

            if (IsReadableStreamDefaultReader(reader) === true) {
              for (var i = 0; i < reader._readRequests.length; i++) {
                var readRequest = reader._readRequests[i];

                readRequest._reject(e);
              }

              reader._readRequests = [];
            } else {
              assert(IsReadableStreamBYOBReader(reader), 'reader must be ReadableStreamBYOBReader');

              for (var _i = 0; _i < reader._readIntoRequests.length; _i++) {
                var readIntoRequest = reader._readIntoRequests[_i];

                readIntoRequest._reject(e);
              }

              reader._readIntoRequests = [];
            }

            defaultReaderClosedPromiseReject(reader, e);

            reader._closedPromise.catch(function () {
            });
          }

          function ReadableStreamFulfillReadIntoRequest(stream, chunk, done) {
            var reader = stream._reader;
            assert(reader._readIntoRequests.length > 0);

            var readIntoRequest = reader._readIntoRequests.shift();

            readIntoRequest._resolve(CreateIterResultObject(chunk, done));
          }

          function ReadableStreamFulfillReadRequest(stream, chunk, done) {
            var reader = stream._reader;
            assert(reader._readRequests.length > 0);

            var readRequest = reader._readRequests.shift();

            readRequest._resolve(CreateIterResultObject(chunk, done));
          }

          function ReadableStreamGetNumReadIntoRequests(stream) {
            return stream._reader._readIntoRequests.length;
          }

          function ReadableStreamGetNumReadRequests(stream) {
            return stream._reader._readRequests.length;
          }

          function ReadableStreamHasBYOBReader(stream) {
            var reader = stream._reader;

            if (reader === undefined) {
              return false;
            }

            if (IsReadableStreamBYOBReader(reader) === false) {
              return false;
            }

            return true;
          }

          function ReadableStreamHasDefaultReader(stream) {
            var reader = stream._reader;

            if (reader === undefined) {
              return false;
            }

            if (IsReadableStreamDefaultReader(reader) === false) {
              return false;
            }

            return true;
          }

          var ReadableStreamDefaultReader = function () {
            function ReadableStreamDefaultReader(stream) {
              _classCallCheck(this, ReadableStreamDefaultReader);

              if (IsReadableStream(stream) === false) {
                throw new TypeError('ReadableStreamDefaultReader can only be constructed with a ReadableStream instance');
              }

              if (IsReadableStreamLocked(stream) === true) {
                throw new TypeError('This stream has already been locked for exclusive reading by another reader');
              }

              ReadableStreamReaderGenericInitialize(this, stream);
              this._readRequests = [];
            }

            _createClass(ReadableStreamDefaultReader, [{
              key: 'cancel',
              value: function cancel(reason) {
                if (IsReadableStreamDefaultReader(this) === false) {
                  return Promise.reject(defaultReaderBrandCheckException('cancel'));
                }

                if (this._ownerReadableStream === undefined) {
                  return Promise.reject(readerLockException('cancel'));
                }

                return ReadableStreamReaderGenericCancel(this, reason);
              }
            }, {
              key: 'read',
              value: function read() {
                if (IsReadableStreamDefaultReader(this) === false) {
                  return Promise.reject(defaultReaderBrandCheckException('read'));
                }

                if (this._ownerReadableStream === undefined) {
                  return Promise.reject(readerLockException('read from'));
                }

                return ReadableStreamDefaultReaderRead(this);
              }
            }, {
              key: 'releaseLock',
              value: function releaseLock() {
                if (IsReadableStreamDefaultReader(this) === false) {
                  throw defaultReaderBrandCheckException('releaseLock');
                }

                if (this._ownerReadableStream === undefined) {
                  return;
                }

                if (this._readRequests.length > 0) {
                  throw new TypeError('Tried to release a reader lock when that reader has pending read() calls un-settled');
                }

                ReadableStreamReaderGenericRelease(this);
              }
            }, {
              key: 'closed',
              get: function get() {
                if (IsReadableStreamDefaultReader(this) === false) {
                  return Promise.reject(defaultReaderBrandCheckException('closed'));
                }

                return this._closedPromise;
              }
            }]);

            return ReadableStreamDefaultReader;
          }();

          var ReadableStreamBYOBReader = function () {
            function ReadableStreamBYOBReader(stream) {
              _classCallCheck(this, ReadableStreamBYOBReader);

              if (!IsReadableStream(stream)) {
                throw new TypeError('ReadableStreamBYOBReader can only be constructed with a ReadableStream instance given a ' + 'byte source');
              }

              if (IsReadableByteStreamController(stream._readableStreamController) === false) {
                throw new TypeError('Cannot construct a ReadableStreamBYOBReader for a stream not constructed with a byte ' + 'source');
              }

              if (IsReadableStreamLocked(stream)) {
                throw new TypeError('This stream has already been locked for exclusive reading by another reader');
              }

              ReadableStreamReaderGenericInitialize(this, stream);
              this._readIntoRequests = [];
            }

            _createClass(ReadableStreamBYOBReader, [{
              key: 'cancel',
              value: function cancel(reason) {
                if (!IsReadableStreamBYOBReader(this)) {
                  return Promise.reject(byobReaderBrandCheckException('cancel'));
                }

                if (this._ownerReadableStream === undefined) {
                  return Promise.reject(readerLockException('cancel'));
                }

                return ReadableStreamReaderGenericCancel(this, reason);
              }
            }, {
              key: 'read',
              value: function read(view) {
                if (!IsReadableStreamBYOBReader(this)) {
                  return Promise.reject(byobReaderBrandCheckException('read'));
                }

                if (this._ownerReadableStream === undefined) {
                  return Promise.reject(readerLockException('read from'));
                }

                if (!ArrayBuffer.isView(view)) {
                  return Promise.reject(new TypeError('view must be an array buffer view'));
                }

                if (view.byteLength === 0) {
                  return Promise.reject(new TypeError('view must have non-zero byteLength'));
                }

                return ReadableStreamBYOBReaderRead(this, view);
              }
            }, {
              key: 'releaseLock',
              value: function releaseLock() {
                if (!IsReadableStreamBYOBReader(this)) {
                  throw byobReaderBrandCheckException('releaseLock');
                }

                if (this._ownerReadableStream === undefined) {
                  return;
                }

                if (this._readIntoRequests.length > 0) {
                  throw new TypeError('Tried to release a reader lock when that reader has pending read() calls un-settled');
                }

                ReadableStreamReaderGenericRelease(this);
              }
            }, {
              key: 'closed',
              get: function get() {
                if (!IsReadableStreamBYOBReader(this)) {
                  return Promise.reject(byobReaderBrandCheckException('closed'));
                }

                return this._closedPromise;
              }
            }]);

            return ReadableStreamBYOBReader;
          }();

          function IsReadableStreamBYOBReader(x) {
            if (!typeIsObject(x)) {
              return false;
            }

            if (!Object.prototype.hasOwnProperty.call(x, '_readIntoRequests')) {
              return false;
            }

            return true;
          }

          function IsReadableStreamDefaultReader(x) {
            if (!typeIsObject(x)) {
              return false;
            }

            if (!Object.prototype.hasOwnProperty.call(x, '_readRequests')) {
              return false;
            }

            return true;
          }

          function ReadableStreamReaderGenericInitialize(reader, stream) {
            reader._ownerReadableStream = stream;
            stream._reader = reader;

            if (stream._state === 'readable') {
              defaultReaderClosedPromiseInitialize(reader);
            } else if (stream._state === 'closed') {
              defaultReaderClosedPromiseInitializeAsResolved(reader);
            } else {
              assert(stream._state === 'errored', 'state must be errored');
              defaultReaderClosedPromiseInitializeAsRejected(reader, stream._storedError);

              reader._closedPromise.catch(function () {
              });
            }
          }

          function ReadableStreamReaderGenericCancel(reader, reason) {
            var stream = reader._ownerReadableStream;
            assert(stream !== undefined);
            return ReadableStreamCancel(stream, reason);
          }

          function ReadableStreamReaderGenericRelease(reader) {
            assert(reader._ownerReadableStream !== undefined);
            assert(reader._ownerReadableStream._reader === reader);

            if (reader._ownerReadableStream._state === 'readable') {
              defaultReaderClosedPromiseReject(reader, new TypeError('Reader was released and can no longer be used to monitor the stream\'s closedness'));
            } else {
              defaultReaderClosedPromiseResetToRejected(reader, new TypeError('Reader was released and can no longer be used to monitor the stream\'s closedness'));
            }

            reader._closedPromise.catch(function () {
            });

            reader._ownerReadableStream._reader = undefined;
            reader._ownerReadableStream = undefined;
          }

          function ReadableStreamBYOBReaderRead(reader, view) {
            var stream = reader._ownerReadableStream;
            assert(stream !== undefined);
            stream._disturbed = true;

            if (stream._state === 'errored') {
              return Promise.reject(stream._storedError);
            }

            return ReadableByteStreamControllerPullInto(stream._readableStreamController, view);
          }

          function ReadableStreamDefaultReaderRead(reader) {
            var stream = reader._ownerReadableStream;
            assert(stream !== undefined);
            stream._disturbed = true;

            if (stream._state === 'closed') {
              return Promise.resolve(CreateIterResultObject(undefined, true));
            }

            if (stream._state === 'errored') {
              return Promise.reject(stream._storedError);
            }

            assert(stream._state === 'readable');
            return stream._readableStreamController.__pullSteps();
          }

          var ReadableStreamDefaultController = function () {
            function ReadableStreamDefaultController(stream, underlyingSource, size, highWaterMark) {
              _classCallCheck(this, ReadableStreamDefaultController);

              if (IsReadableStream(stream) === false) {
                throw new TypeError('ReadableStreamDefaultController can only be constructed with a ReadableStream instance');
              }

              if (stream._readableStreamController !== undefined) {
                throw new TypeError('ReadableStreamDefaultController instances can only be created by the ReadableStream constructor');
              }

              this._controlledReadableStream = stream;
              this._underlyingSource = underlyingSource;
              this._queue = undefined;
              this._queueTotalSize = undefined;
              ResetQueue(this);
              this._started = false;
              this._closeRequested = false;
              this._pullAgain = false;
              this._pulling = false;
              var normalizedStrategy = ValidateAndNormalizeQueuingStrategy(size, highWaterMark);
              this._strategySize = normalizedStrategy.size;
              this._strategyHWM = normalizedStrategy.highWaterMark;
              var controller = this;
              var startResult = InvokeOrNoop(underlyingSource, 'start', [this]);
              Promise.resolve(startResult).then(function () {
                controller._started = true;
                assert(controller._pulling === false);
                assert(controller._pullAgain === false);
                ReadableStreamDefaultControllerCallPullIfNeeded(controller);
              }, function (r) {
                ReadableStreamDefaultControllerErrorIfNeeded(controller, r);
              }).catch(rethrowAssertionErrorRejection);
            }

            _createClass(ReadableStreamDefaultController, [{
              key: 'close',
              value: function close() {
                if (IsReadableStreamDefaultController(this) === false) {
                  throw defaultControllerBrandCheckException('close');
                }

                if (this._closeRequested === true) {
                  throw new TypeError('The stream has already been closed; do not close it again!');
                }

                var state = this._controlledReadableStream._state;

                if (state !== 'readable') {
                  throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be closed');
                }

                ReadableStreamDefaultControllerClose(this);
              }
            }, {
              key: 'enqueue',
              value: function enqueue(chunk) {
                if (IsReadableStreamDefaultController(this) === false) {
                  throw defaultControllerBrandCheckException('enqueue');
                }

                if (this._closeRequested === true) {
                  throw new TypeError('stream is closed or draining');
                }

                var state = this._controlledReadableStream._state;

                if (state !== 'readable') {
                  throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be enqueued to');
                }

                return ReadableStreamDefaultControllerEnqueue(this, chunk);
              }
            }, {
              key: 'error',
              value: function error(e) {
                if (IsReadableStreamDefaultController(this) === false) {
                  throw defaultControllerBrandCheckException('error');
                }

                var stream = this._controlledReadableStream;

                if (stream._state !== 'readable') {
                  throw new TypeError('The stream is ' + stream._state + ' and so cannot be errored');
                }

                ReadableStreamDefaultControllerError(this, e);
              }
            }, {
              key: '__cancelSteps',
              value: function __cancelSteps(reason) {
                ResetQueue(this);
                return PromiseInvokeOrNoop(this._underlyingSource, 'cancel', [reason]);
              }
            }, {
              key: '__pullSteps',
              value: function __pullSteps() {
                var stream = this._controlledReadableStream;

                if (this._queue.length > 0) {
                  var chunk = DequeueValue(this);

                  if (this._closeRequested === true && this._queue.length === 0) {
                    ReadableStreamClose(stream);
                  } else {
                    ReadableStreamDefaultControllerCallPullIfNeeded(this);
                  }

                  return Promise.resolve(CreateIterResultObject(chunk, false));
                }

                var pendingPromise = ReadableStreamAddReadRequest(stream);
                ReadableStreamDefaultControllerCallPullIfNeeded(this);
                return pendingPromise;
              }
            }, {
              key: 'desiredSize',
              get: function get() {
                if (IsReadableStreamDefaultController(this) === false) {
                  throw defaultControllerBrandCheckException('desiredSize');
                }

                return ReadableStreamDefaultControllerGetDesiredSize(this);
              }
            }]);

            return ReadableStreamDefaultController;
          }();

          function IsReadableStreamDefaultController(x) {
            if (!typeIsObject(x)) {
              return false;
            }

            if (!Object.prototype.hasOwnProperty.call(x, '_underlyingSource')) {
              return false;
            }

            return true;
          }

          function ReadableStreamDefaultControllerCallPullIfNeeded(controller) {
            var shouldPull = ReadableStreamDefaultControllerShouldCallPull(controller);

            if (shouldPull === false) {
              return undefined;
            }

            if (controller._pulling === true) {
              controller._pullAgain = true;
              return undefined;
            }

            assert(controller._pullAgain === false);
            controller._pulling = true;
            var pullPromise = PromiseInvokeOrNoop(controller._underlyingSource, 'pull', [controller]);
            pullPromise.then(function () {
              controller._pulling = false;

              if (controller._pullAgain === true) {
                controller._pullAgain = false;
                return ReadableStreamDefaultControllerCallPullIfNeeded(controller);
              }

              return undefined;
            }, function (e) {
              ReadableStreamDefaultControllerErrorIfNeeded(controller, e);
            }).catch(rethrowAssertionErrorRejection);
            return undefined;
          }

          function ReadableStreamDefaultControllerShouldCallPull(controller) {
            var stream = controller._controlledReadableStream;

            if (stream._state === 'closed' || stream._state === 'errored') {
              return false;
            }

            if (controller._closeRequested === true) {
              return false;
            }

            if (controller._started === false) {
              return false;
            }

            if (IsReadableStreamLocked(stream) === true && ReadableStreamGetNumReadRequests(stream) > 0) {
              return true;
            }

            var desiredSize = ReadableStreamDefaultControllerGetDesiredSize(controller);

            if (desiredSize > 0) {
              return true;
            }

            return false;
          }

          function ReadableStreamDefaultControllerClose(controller) {
            var stream = controller._controlledReadableStream;
            assert(controller._closeRequested === false);
            assert(stream._state === 'readable');
            controller._closeRequested = true;

            if (controller._queue.length === 0) {
              ReadableStreamClose(stream);
            }
          }

          function ReadableStreamDefaultControllerEnqueue(controller, chunk) {
            var stream = controller._controlledReadableStream;
            assert(controller._closeRequested === false);
            assert(stream._state === 'readable');

            if (IsReadableStreamLocked(stream) === true && ReadableStreamGetNumReadRequests(stream) > 0) {
              ReadableStreamFulfillReadRequest(stream, chunk, false);
            } else {
              var chunkSize = 1;

              if (controller._strategySize !== undefined) {
                var strategySize = controller._strategySize;

                try {
                  chunkSize = strategySize(chunk);
                } catch (chunkSizeE) {
                  ReadableStreamDefaultControllerErrorIfNeeded(controller, chunkSizeE);
                  throw chunkSizeE;
                }
              }

              try {
                EnqueueValueWithSize(controller, chunk, chunkSize);
              } catch (enqueueE) {
                ReadableStreamDefaultControllerErrorIfNeeded(controller, enqueueE);
                throw enqueueE;
              }
            }

            ReadableStreamDefaultControllerCallPullIfNeeded(controller);
            return undefined;
          }

          function ReadableStreamDefaultControllerError(controller, e) {
            var stream = controller._controlledReadableStream;
            assert(stream._state === 'readable');
            ResetQueue(controller);
            ReadableStreamError(stream, e);
          }

          function ReadableStreamDefaultControllerErrorIfNeeded(controller, e) {
            if (controller._controlledReadableStream._state === 'readable') {
              ReadableStreamDefaultControllerError(controller, e);
            }
          }

          function ReadableStreamDefaultControllerGetDesiredSize(controller) {
            var stream = controller._controlledReadableStream;
            var state = stream._state;

            if (state === 'errored') {
              return null;
            }

            if (state === 'closed') {
              return 0;
            }

            return controller._strategyHWM - controller._queueTotalSize;
          }

          var ReadableStreamBYOBRequest = function () {
            function ReadableStreamBYOBRequest(controller, view) {
              _classCallCheck(this, ReadableStreamBYOBRequest);

              this._associatedReadableByteStreamController = controller;
              this._view = view;
            }

            _createClass(ReadableStreamBYOBRequest, [{
              key: 'respond',
              value: function respond(bytesWritten) {
                if (IsReadableStreamBYOBRequest(this) === false) {
                  throw byobRequestBrandCheckException('respond');
                }

                if (this._associatedReadableByteStreamController === undefined) {
                  throw new TypeError('This BYOB request has been invalidated');
                }

                ReadableByteStreamControllerRespond(this._associatedReadableByteStreamController, bytesWritten);
              }
            }, {
              key: 'respondWithNewView',
              value: function respondWithNewView(view) {
                if (IsReadableStreamBYOBRequest(this) === false) {
                  throw byobRequestBrandCheckException('respond');
                }

                if (this._associatedReadableByteStreamController === undefined) {
                  throw new TypeError('This BYOB request has been invalidated');
                }

                if (!ArrayBuffer.isView(view)) {
                  throw new TypeError('You can only respond with array buffer views');
                }

                ReadableByteStreamControllerRespondWithNewView(this._associatedReadableByteStreamController, view);
              }
            }, {
              key: 'view',
              get: function get() {
                return this._view;
              }
            }]);

            return ReadableStreamBYOBRequest;
          }();

          var ReadableByteStreamController = function () {
            function ReadableByteStreamController(stream, underlyingByteSource, highWaterMark) {
              _classCallCheck(this, ReadableByteStreamController);

              if (IsReadableStream(stream) === false) {
                throw new TypeError('ReadableByteStreamController can only be constructed with a ReadableStream instance given ' + 'a byte source');
              }

              if (stream._readableStreamController !== undefined) {
                throw new TypeError('ReadableByteStreamController instances can only be created by the ReadableStream constructor given a byte ' + 'source');
              }

              this._controlledReadableStream = stream;
              this._underlyingByteSource = underlyingByteSource;
              this._pullAgain = false;
              this._pulling = false;
              ReadableByteStreamControllerClearPendingPullIntos(this);
              this._queue = this._queueTotalSize = undefined;
              ResetQueue(this);
              this._closeRequested = false;
              this._started = false;
              this._strategyHWM = ValidateAndNormalizeHighWaterMark(highWaterMark);
              var autoAllocateChunkSize = underlyingByteSource.autoAllocateChunkSize;

              if (autoAllocateChunkSize !== undefined) {
                if (Number.isInteger(autoAllocateChunkSize) === false || autoAllocateChunkSize <= 0) {
                  throw new RangeError('autoAllocateChunkSize must be a positive integer');
                }
              }

              this._autoAllocateChunkSize = autoAllocateChunkSize;
              this._pendingPullIntos = [];
              var controller = this;
              var startResult = InvokeOrNoop(underlyingByteSource, 'start', [this]);
              Promise.resolve(startResult).then(function () {
                controller._started = true;
                assert(controller._pulling === false);
                assert(controller._pullAgain === false);
                ReadableByteStreamControllerCallPullIfNeeded(controller);
              }, function (r) {
                if (stream._state === 'readable') {
                  ReadableByteStreamControllerError(controller, r);
                }
              }).catch(rethrowAssertionErrorRejection);
            }

            _createClass(ReadableByteStreamController, [{
              key: 'close',
              value: function close() {
                if (IsReadableByteStreamController(this) === false) {
                  throw byteStreamControllerBrandCheckException('close');
                }

                if (this._closeRequested === true) {
                  throw new TypeError('The stream has already been closed; do not close it again!');
                }

                var state = this._controlledReadableStream._state;

                if (state !== 'readable') {
                  throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be closed');
                }

                ReadableByteStreamControllerClose(this);
              }
            }, {
              key: 'enqueue',
              value: function enqueue(chunk) {
                if (IsReadableByteStreamController(this) === false) {
                  throw byteStreamControllerBrandCheckException('enqueue');
                }

                if (this._closeRequested === true) {
                  throw new TypeError('stream is closed or draining');
                }

                var state = this._controlledReadableStream._state;

                if (state !== 'readable') {
                  throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be enqueued to');
                }

                if (!ArrayBuffer.isView(chunk)) {
                  throw new TypeError('You can only enqueue array buffer views when using a ReadableByteStreamController');
                }

                ReadableByteStreamControllerEnqueue(this, chunk);
              }
            }, {
              key: 'error',
              value: function error(e) {
                if (IsReadableByteStreamController(this) === false) {
                  throw byteStreamControllerBrandCheckException('error');
                }

                var stream = this._controlledReadableStream;

                if (stream._state !== 'readable') {
                  throw new TypeError('The stream is ' + stream._state + ' and so cannot be errored');
                }

                ReadableByteStreamControllerError(this, e);
              }
            }, {
              key: '__cancelSteps',
              value: function __cancelSteps(reason) {
                if (this._pendingPullIntos.length > 0) {
                  var firstDescriptor = this._pendingPullIntos[0];
                  firstDescriptor.bytesFilled = 0;
                }

                ResetQueue(this);
                return PromiseInvokeOrNoop(this._underlyingByteSource, 'cancel', [reason]);
              }
            }, {
              key: '__pullSteps',
              value: function __pullSteps() {
                var stream = this._controlledReadableStream;
                assert(ReadableStreamHasDefaultReader(stream) === true);

                if (this._queueTotalSize > 0) {
                  assert(ReadableStreamGetNumReadRequests(stream) === 0);

                  var entry = this._queue.shift();

                  this._queueTotalSize -= entry.byteLength;
                  ReadableByteStreamControllerHandleQueueDrain(this);
                  var view = void 0;

                  try {
                    view = new Uint8Array(entry.buffer, entry.byteOffset, entry.byteLength);
                  } catch (viewE) {
                    return Promise.reject(viewE);
                  }

                  return Promise.resolve(CreateIterResultObject(view, false));
                }

                var autoAllocateChunkSize = this._autoAllocateChunkSize;

                if (autoAllocateChunkSize !== undefined) {
                  var buffer = void 0;

                  try {
                    buffer = new ArrayBuffer(autoAllocateChunkSize);
                  } catch (bufferE) {
                    return Promise.reject(bufferE);
                  }

                  var pullIntoDescriptor = {
                    buffer: buffer,
                    byteOffset: 0,
                    byteLength: autoAllocateChunkSize,
                    bytesFilled: 0,
                    elementSize: 1,
                    ctor: Uint8Array,
                    readerType: 'default'
                  };

                  this._pendingPullIntos.push(pullIntoDescriptor);
                }

                var promise = ReadableStreamAddReadRequest(stream);
                ReadableByteStreamControllerCallPullIfNeeded(this);
                return promise;
              }
            }, {
              key: 'byobRequest',
              get: function get() {
                if (IsReadableByteStreamController(this) === false) {
                  throw byteStreamControllerBrandCheckException('byobRequest');
                }

                if (this._byobRequest === undefined && this._pendingPullIntos.length > 0) {
                  var firstDescriptor = this._pendingPullIntos[0];
                  var view = new Uint8Array(firstDescriptor.buffer, firstDescriptor.byteOffset + firstDescriptor.bytesFilled, firstDescriptor.byteLength - firstDescriptor.bytesFilled);
                  this._byobRequest = new ReadableStreamBYOBRequest(this, view);
                }

                return this._byobRequest;
              }
            }, {
              key: 'desiredSize',
              get: function get() {
                if (IsReadableByteStreamController(this) === false) {
                  throw byteStreamControllerBrandCheckException('desiredSize');
                }

                return ReadableByteStreamControllerGetDesiredSize(this);
              }
            }]);

            return ReadableByteStreamController;
          }();

          function IsReadableByteStreamController(x) {
            if (!typeIsObject(x)) {
              return false;
            }

            if (!Object.prototype.hasOwnProperty.call(x, '_underlyingByteSource')) {
              return false;
            }

            return true;
          }

          function IsReadableStreamBYOBRequest(x) {
            if (!typeIsObject(x)) {
              return false;
            }

            if (!Object.prototype.hasOwnProperty.call(x, '_associatedReadableByteStreamController')) {
              return false;
            }

            return true;
          }

          function ReadableByteStreamControllerCallPullIfNeeded(controller) {
            var shouldPull = ReadableByteStreamControllerShouldCallPull(controller);

            if (shouldPull === false) {
              return undefined;
            }

            if (controller._pulling === true) {
              controller._pullAgain = true;
              return undefined;
            }

            assert(controller._pullAgain === false);
            controller._pulling = true;
            var pullPromise = PromiseInvokeOrNoop(controller._underlyingByteSource, 'pull', [controller]);
            pullPromise.then(function () {
              controller._pulling = false;

              if (controller._pullAgain === true) {
                controller._pullAgain = false;
                ReadableByteStreamControllerCallPullIfNeeded(controller);
              }
            }, function (e) {
              if (controller._controlledReadableStream._state === 'readable') {
                ReadableByteStreamControllerError(controller, e);
              }
            }).catch(rethrowAssertionErrorRejection);
            return undefined;
          }

          function ReadableByteStreamControllerClearPendingPullIntos(controller) {
            ReadableByteStreamControllerInvalidateBYOBRequest(controller);
            controller._pendingPullIntos = [];
          }

          function ReadableByteStreamControllerCommitPullIntoDescriptor(stream, pullIntoDescriptor) {
            assert(stream._state !== 'errored', 'state must not be errored');
            var done = false;

            if (stream._state === 'closed') {
              assert(pullIntoDescriptor.bytesFilled === 0);
              done = true;
            }

            var filledView = ReadableByteStreamControllerConvertPullIntoDescriptor(pullIntoDescriptor);

            if (pullIntoDescriptor.readerType === 'default') {
              ReadableStreamFulfillReadRequest(stream, filledView, done);
            } else {
              assert(pullIntoDescriptor.readerType === 'byob');
              ReadableStreamFulfillReadIntoRequest(stream, filledView, done);
            }
          }

          function ReadableByteStreamControllerConvertPullIntoDescriptor(pullIntoDescriptor) {
            var bytesFilled = pullIntoDescriptor.bytesFilled;
            var elementSize = pullIntoDescriptor.elementSize;
            assert(bytesFilled <= pullIntoDescriptor.byteLength);
            assert(bytesFilled % elementSize === 0);
            return new pullIntoDescriptor.ctor(pullIntoDescriptor.buffer, pullIntoDescriptor.byteOffset, bytesFilled / elementSize);
          }

          function ReadableByteStreamControllerEnqueueChunkToQueue(controller, buffer, byteOffset, byteLength) {
            controller._queue.push({
              buffer: buffer,
              byteOffset: byteOffset,
              byteLength: byteLength
            });

            controller._queueTotalSize += byteLength;
          }

          function ReadableByteStreamControllerFillPullIntoDescriptorFromQueue(controller, pullIntoDescriptor) {
            var elementSize = pullIntoDescriptor.elementSize;
            var currentAlignedBytes = pullIntoDescriptor.bytesFilled - pullIntoDescriptor.bytesFilled % elementSize;
            var maxBytesToCopy = Math.min(controller._queueTotalSize, pullIntoDescriptor.byteLength - pullIntoDescriptor.bytesFilled);
            var maxBytesFilled = pullIntoDescriptor.bytesFilled + maxBytesToCopy;
            var maxAlignedBytes = maxBytesFilled - maxBytesFilled % elementSize;
            var totalBytesToCopyRemaining = maxBytesToCopy;
            var ready = false;

            if (maxAlignedBytes > currentAlignedBytes) {
              totalBytesToCopyRemaining = maxAlignedBytes - pullIntoDescriptor.bytesFilled;
              ready = true;
            }

            var queue = controller._queue;

            while (totalBytesToCopyRemaining > 0) {
              var headOfQueue = queue[0];
              var bytesToCopy = Math.min(totalBytesToCopyRemaining, headOfQueue.byteLength);
              var destStart = pullIntoDescriptor.byteOffset + pullIntoDescriptor.bytesFilled;
              ArrayBufferCopy(pullIntoDescriptor.buffer, destStart, headOfQueue.buffer, headOfQueue.byteOffset, bytesToCopy);

              if (headOfQueue.byteLength === bytesToCopy) {
                queue.shift();
              } else {
                headOfQueue.byteOffset += bytesToCopy;
                headOfQueue.byteLength -= bytesToCopy;
              }

              controller._queueTotalSize -= bytesToCopy;
              ReadableByteStreamControllerFillHeadPullIntoDescriptor(controller, bytesToCopy, pullIntoDescriptor);
              totalBytesToCopyRemaining -= bytesToCopy;
            }

            if (ready === false) {
              assert(controller._queueTotalSize === 0, 'queue must be empty');
              assert(pullIntoDescriptor.bytesFilled > 0);
              assert(pullIntoDescriptor.bytesFilled < pullIntoDescriptor.elementSize);
            }

            return ready;
          }

          function ReadableByteStreamControllerFillHeadPullIntoDescriptor(controller, size, pullIntoDescriptor) {
            assert(controller._pendingPullIntos.length === 0 || controller._pendingPullIntos[0] === pullIntoDescriptor);
            ReadableByteStreamControllerInvalidateBYOBRequest(controller);
            pullIntoDescriptor.bytesFilled += size;
          }

          function ReadableByteStreamControllerHandleQueueDrain(controller) {
            assert(controller._controlledReadableStream._state === 'readable');

            if (controller._queueTotalSize === 0 && controller._closeRequested === true) {
              ReadableStreamClose(controller._controlledReadableStream);
            } else {
              ReadableByteStreamControllerCallPullIfNeeded(controller);
            }
          }

          function ReadableByteStreamControllerInvalidateBYOBRequest(controller) {
            if (controller._byobRequest === undefined) {
              return;
            }

            controller._byobRequest._associatedReadableByteStreamController = undefined;
            controller._byobRequest._view = undefined;
            controller._byobRequest = undefined;
          }

          function ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller) {
            assert(controller._closeRequested === false);

            while (controller._pendingPullIntos.length > 0) {
              if (controller._queueTotalSize === 0) {
                return;
              }

              var pullIntoDescriptor = controller._pendingPullIntos[0];

              if (ReadableByteStreamControllerFillPullIntoDescriptorFromQueue(controller, pullIntoDescriptor) === true) {
                ReadableByteStreamControllerShiftPendingPullInto(controller);
                ReadableByteStreamControllerCommitPullIntoDescriptor(controller._controlledReadableStream, pullIntoDescriptor);
              }
            }
          }

          function ReadableByteStreamControllerPullInto(controller, view) {
            var stream = controller._controlledReadableStream;
            var elementSize = 1;

            if (view.constructor !== DataView) {
              elementSize = view.constructor.BYTES_PER_ELEMENT;
            }

            var ctor = view.constructor;
            var pullIntoDescriptor = {
              buffer: view.buffer,
              byteOffset: view.byteOffset,
              byteLength: view.byteLength,
              bytesFilled: 0,
              elementSize: elementSize,
              ctor: ctor,
              readerType: 'byob'
            };

            if (controller._pendingPullIntos.length > 0) {
              pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);

              controller._pendingPullIntos.push(pullIntoDescriptor);

              return ReadableStreamAddReadIntoRequest(stream);
            }

            if (stream._state === 'closed') {
              var emptyView = new view.constructor(pullIntoDescriptor.buffer, pullIntoDescriptor.byteOffset, 0);
              return Promise.resolve(CreateIterResultObject(emptyView, true));
            }

            if (controller._queueTotalSize > 0) {
              if (ReadableByteStreamControllerFillPullIntoDescriptorFromQueue(controller, pullIntoDescriptor) === true) {
                var filledView = ReadableByteStreamControllerConvertPullIntoDescriptor(pullIntoDescriptor);
                ReadableByteStreamControllerHandleQueueDrain(controller);
                return Promise.resolve(CreateIterResultObject(filledView, false));
              }

              if (controller._closeRequested === true) {
                var e = new TypeError('Insufficient bytes to fill elements in the given buffer');
                ReadableByteStreamControllerError(controller, e);
                return Promise.reject(e);
              }
            }

            pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);

            controller._pendingPullIntos.push(pullIntoDescriptor);

            var promise = ReadableStreamAddReadIntoRequest(stream);
            ReadableByteStreamControllerCallPullIfNeeded(controller);
            return promise;
          }

          function ReadableByteStreamControllerRespondInClosedState(controller, firstDescriptor) {
            firstDescriptor.buffer = TransferArrayBuffer(firstDescriptor.buffer);
            assert(firstDescriptor.bytesFilled === 0, 'bytesFilled must be 0');
            var stream = controller._controlledReadableStream;

            if (ReadableStreamHasBYOBReader(stream) === true) {
              while (ReadableStreamGetNumReadIntoRequests(stream) > 0) {
                var pullIntoDescriptor = ReadableByteStreamControllerShiftPendingPullInto(controller);
                ReadableByteStreamControllerCommitPullIntoDescriptor(stream, pullIntoDescriptor);
              }
            }
          }

          function ReadableByteStreamControllerRespondInReadableState(controller, bytesWritten, pullIntoDescriptor) {
            if (pullIntoDescriptor.bytesFilled + bytesWritten > pullIntoDescriptor.byteLength) {
              throw new RangeError('bytesWritten out of range');
            }

            ReadableByteStreamControllerFillHeadPullIntoDescriptor(controller, bytesWritten, pullIntoDescriptor);

            if (pullIntoDescriptor.bytesFilled < pullIntoDescriptor.elementSize) {
              return;
            }

            ReadableByteStreamControllerShiftPendingPullInto(controller);
            var remainderSize = pullIntoDescriptor.bytesFilled % pullIntoDescriptor.elementSize;

            if (remainderSize > 0) {
              var end = pullIntoDescriptor.byteOffset + pullIntoDescriptor.bytesFilled;
              var remainder = pullIntoDescriptor.buffer.slice(end - remainderSize, end);
              ReadableByteStreamControllerEnqueueChunkToQueue(controller, remainder, 0, remainder.byteLength);
            }

            pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);
            pullIntoDescriptor.bytesFilled -= remainderSize;
            ReadableByteStreamControllerCommitPullIntoDescriptor(controller._controlledReadableStream, pullIntoDescriptor);
            ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller);
          }

          function ReadableByteStreamControllerRespondInternal(controller, bytesWritten) {
            var firstDescriptor = controller._pendingPullIntos[0];
            var stream = controller._controlledReadableStream;

            if (stream._state === 'closed') {
              if (bytesWritten !== 0) {
                throw new TypeError('bytesWritten must be 0 when calling respond() on a closed stream');
              }

              ReadableByteStreamControllerRespondInClosedState(controller, firstDescriptor);
            } else {
              assert(stream._state === 'readable');
              ReadableByteStreamControllerRespondInReadableState(controller, bytesWritten, firstDescriptor);
            }
          }

          function ReadableByteStreamControllerShiftPendingPullInto(controller) {
            var descriptor = controller._pendingPullIntos.shift();

            ReadableByteStreamControllerInvalidateBYOBRequest(controller);
            return descriptor;
          }

          function ReadableByteStreamControllerShouldCallPull(controller) {
            var stream = controller._controlledReadableStream;

            if (stream._state !== 'readable') {
              return false;
            }

            if (controller._closeRequested === true) {
              return false;
            }

            if (controller._started === false) {
              return false;
            }

            if (ReadableStreamHasDefaultReader(stream) === true && ReadableStreamGetNumReadRequests(stream) > 0) {
              return true;
            }

            if (ReadableStreamHasBYOBReader(stream) === true && ReadableStreamGetNumReadIntoRequests(stream) > 0) {
              return true;
            }

            if (ReadableByteStreamControllerGetDesiredSize(controller) > 0) {
              return true;
            }

            return false;
          }

          function ReadableByteStreamControllerClose(controller) {
            var stream = controller._controlledReadableStream;
            assert(controller._closeRequested === false);
            assert(stream._state === 'readable');

            if (controller._queueTotalSize > 0) {
              controller._closeRequested = true;
              return;
            }

            if (controller._pendingPullIntos.length > 0) {
              var firstPendingPullInto = controller._pendingPullIntos[0];

              if (firstPendingPullInto.bytesFilled > 0) {
                var e = new TypeError('Insufficient bytes to fill elements in the given buffer');
                ReadableByteStreamControllerError(controller, e);
                throw e;
              }
            }

            ReadableStreamClose(stream);
          }

          function ReadableByteStreamControllerEnqueue(controller, chunk) {
            var stream = controller._controlledReadableStream;
            assert(controller._closeRequested === false);
            assert(stream._state === 'readable');
            var buffer = chunk.buffer;
            var byteOffset = chunk.byteOffset;
            var byteLength = chunk.byteLength;
            var transferredBuffer = TransferArrayBuffer(buffer);

            if (ReadableStreamHasDefaultReader(stream) === true) {
              if (ReadableStreamGetNumReadRequests(stream) === 0) {
                ReadableByteStreamControllerEnqueueChunkToQueue(controller, transferredBuffer, byteOffset, byteLength);
              } else {
                assert(controller._queue.length === 0);
                var transferredView = new Uint8Array(transferredBuffer, byteOffset, byteLength);
                ReadableStreamFulfillReadRequest(stream, transferredView, false);
              }
            } else if (ReadableStreamHasBYOBReader(stream) === true) {
              ReadableByteStreamControllerEnqueueChunkToQueue(controller, transferredBuffer, byteOffset, byteLength);
              ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller);
            } else {
              assert(IsReadableStreamLocked(stream) === false, 'stream must not be locked');
              ReadableByteStreamControllerEnqueueChunkToQueue(controller, transferredBuffer, byteOffset, byteLength);
            }
          }

          function ReadableByteStreamControllerError(controller, e) {
            var stream = controller._controlledReadableStream;
            assert(stream._state === 'readable');
            ReadableByteStreamControllerClearPendingPullIntos(controller);
            ResetQueue(controller);
            ReadableStreamError(stream, e);
          }

          function ReadableByteStreamControllerGetDesiredSize(controller) {
            var stream = controller._controlledReadableStream;
            var state = stream._state;

            if (state === 'errored') {
              return null;
            }

            if (state === 'closed') {
              return 0;
            }

            return controller._strategyHWM - controller._queueTotalSize;
          }

          function ReadableByteStreamControllerRespond(controller, bytesWritten) {
            bytesWritten = Number(bytesWritten);

            if (IsFiniteNonNegativeNumber(bytesWritten) === false) {
              throw new RangeError('bytesWritten must be a finite');
            }

            assert(controller._pendingPullIntos.length > 0);
            ReadableByteStreamControllerRespondInternal(controller, bytesWritten);
          }

          function ReadableByteStreamControllerRespondWithNewView(controller, view) {
            assert(controller._pendingPullIntos.length > 0);
            var firstDescriptor = controller._pendingPullIntos[0];

            if (firstDescriptor.byteOffset + firstDescriptor.bytesFilled !== view.byteOffset) {
              throw new RangeError('The region specified by view does not match byobRequest');
            }

            if (firstDescriptor.byteLength !== view.byteLength) {
              throw new RangeError('The buffer of view has different capacity than byobRequest');
            }

            firstDescriptor.buffer = view.buffer;
            ReadableByteStreamControllerRespondInternal(controller, view.byteLength);
          }

          function streamBrandCheckException(name) {
            return new TypeError('ReadableStream.prototype.' + name + ' can only be used on a ReadableStream');
          }

          function readerLockException(name) {
            return new TypeError('Cannot ' + name + ' a stream using a released reader');
          }

          function defaultReaderBrandCheckException(name) {
            return new TypeError('ReadableStreamDefaultReader.prototype.' + name + ' can only be used on a ReadableStreamDefaultReader');
          }

          function defaultReaderClosedPromiseInitialize(reader) {
            reader._closedPromise = new Promise(function (resolve, reject) {
              reader._closedPromise_resolve = resolve;
              reader._closedPromise_reject = reject;
            });
          }

          function defaultReaderClosedPromiseInitializeAsRejected(reader, reason) {
            reader._closedPromise = Promise.reject(reason);
            reader._closedPromise_resolve = undefined;
            reader._closedPromise_reject = undefined;
          }

          function defaultReaderClosedPromiseInitializeAsResolved(reader) {
            reader._closedPromise = Promise.resolve(undefined);
            reader._closedPromise_resolve = undefined;
            reader._closedPromise_reject = undefined;
          }

          function defaultReaderClosedPromiseReject(reader, reason) {
            assert(reader._closedPromise_resolve !== undefined);
            assert(reader._closedPromise_reject !== undefined);

            reader._closedPromise_reject(reason);

            reader._closedPromise_resolve = undefined;
            reader._closedPromise_reject = undefined;
          }

          function defaultReaderClosedPromiseResetToRejected(reader, reason) {
            assert(reader._closedPromise_resolve === undefined);
            assert(reader._closedPromise_reject === undefined);
            reader._closedPromise = Promise.reject(reason);
          }

          function defaultReaderClosedPromiseResolve(reader) {
            assert(reader._closedPromise_resolve !== undefined);
            assert(reader._closedPromise_reject !== undefined);

            reader._closedPromise_resolve(undefined);

            reader._closedPromise_resolve = undefined;
            reader._closedPromise_reject = undefined;
          }

          function byobReaderBrandCheckException(name) {
            return new TypeError('ReadableStreamBYOBReader.prototype.' + name + ' can only be used on a ReadableStreamBYOBReader');
          }

          function defaultControllerBrandCheckException(name) {
            return new TypeError('ReadableStreamDefaultController.prototype.' + name + ' can only be used on a ReadableStreamDefaultController');
          }

          function byobRequestBrandCheckException(name) {
            return new TypeError('ReadableStreamBYOBRequest.prototype.' + name + ' can only be used on a ReadableStreamBYOBRequest');
          }

          function byteStreamControllerBrandCheckException(name) {
            return new TypeError('ReadableByteStreamController.prototype.' + name + ' can only be used on a ReadableByteStreamController');
          }

          function ifIsObjectAndHasAPromiseIsHandledInternalSlotSetPromiseIsHandledToTrue(promise) {
            try {
              Promise.prototype.then.call(promise, undefined, function () {
              });
            } catch (e) {
            }
          }
        }, function (module, exports, __w_pdfjs_require__) {
          "use strict";

          var transformStream = __w_pdfjs_require__(6);

          var readableStream = __w_pdfjs_require__(4);

          var writableStream = __w_pdfjs_require__(2);

          exports.TransformStream = transformStream.TransformStream;
          exports.ReadableStream = readableStream.ReadableStream;
          exports.IsReadableStreamDisturbed = readableStream.IsReadableStreamDisturbed;
          exports.ReadableStreamDefaultControllerClose = readableStream.ReadableStreamDefaultControllerClose;
          exports.ReadableStreamDefaultControllerEnqueue = readableStream.ReadableStreamDefaultControllerEnqueue;
          exports.ReadableStreamDefaultControllerError = readableStream.ReadableStreamDefaultControllerError;
          exports.ReadableStreamDefaultControllerGetDesiredSize = readableStream.ReadableStreamDefaultControllerGetDesiredSize;
          exports.AcquireWritableStreamDefaultWriter = writableStream.AcquireWritableStreamDefaultWriter;
          exports.IsWritableStream = writableStream.IsWritableStream;
          exports.IsWritableStreamLocked = writableStream.IsWritableStreamLocked;
          exports.WritableStream = writableStream.WritableStream;
          exports.WritableStreamAbort = writableStream.WritableStreamAbort;
          exports.WritableStreamDefaultControllerError = writableStream.WritableStreamDefaultControllerError;
          exports.WritableStreamDefaultWriterCloseWithErrorPropagation = writableStream.WritableStreamDefaultWriterCloseWithErrorPropagation;
          exports.WritableStreamDefaultWriterRelease = writableStream.WritableStreamDefaultWriterRelease;
          exports.WritableStreamDefaultWriterWrite = writableStream.WritableStreamDefaultWriterWrite;
        }, function (module, exports, __w_pdfjs_require__) {
          "use strict";

          var _createClass = function () {
            function defineProperties(target, props) {
              for (var i = 0; i < props.length; i++) {
                var descriptor = props[i];
                descriptor.enumerable = descriptor.enumerable || false;
                descriptor.configurable = true;
                if ("value" in descriptor) descriptor.writable = true;
                Object.defineProperty(target, descriptor.key, descriptor);
              }
            }

            return function (Constructor, protoProps, staticProps) {
              if (protoProps) defineProperties(Constructor.prototype, protoProps);
              if (staticProps) defineProperties(Constructor, staticProps);
              return Constructor;
            };
          }();

          function _classCallCheck(instance, Constructor) {
            if (!(instance instanceof Constructor)) {
              throw new TypeError("Cannot call a class as a function");
            }
          }

          var _require = __w_pdfjs_require__(1),
            assert = _require.assert;

          var _require2 = __w_pdfjs_require__(0),
            InvokeOrNoop = _require2.InvokeOrNoop,
            PromiseInvokeOrPerformFallback = _require2.PromiseInvokeOrPerformFallback,
            PromiseInvokeOrNoop = _require2.PromiseInvokeOrNoop,
            typeIsObject = _require2.typeIsObject;

          var _require3 = __w_pdfjs_require__(4),
            ReadableStream = _require3.ReadableStream,
            ReadableStreamDefaultControllerClose = _require3.ReadableStreamDefaultControllerClose,
            ReadableStreamDefaultControllerEnqueue = _require3.ReadableStreamDefaultControllerEnqueue,
            ReadableStreamDefaultControllerError = _require3.ReadableStreamDefaultControllerError,
            ReadableStreamDefaultControllerGetDesiredSize = _require3.ReadableStreamDefaultControllerGetDesiredSize;

          var _require4 = __w_pdfjs_require__(2),
            WritableStream = _require4.WritableStream,
            WritableStreamDefaultControllerError = _require4.WritableStreamDefaultControllerError;

          function TransformStreamCloseReadable(transformStream) {
            if (transformStream._errored === true) {
              throw new TypeError('TransformStream is already errored');
            }

            if (transformStream._readableClosed === true) {
              throw new TypeError('Readable side is already closed');
            }

            TransformStreamCloseReadableInternal(transformStream);
          }

          function TransformStreamEnqueueToReadable(transformStream, chunk) {
            if (transformStream._errored === true) {
              throw new TypeError('TransformStream is already errored');
            }

            if (transformStream._readableClosed === true) {
              throw new TypeError('Readable side is already closed');
            }

            var controller = transformStream._readableController;

            try {
              ReadableStreamDefaultControllerEnqueue(controller, chunk);
            } catch (e) {
              transformStream._readableClosed = true;
              TransformStreamErrorIfNeeded(transformStream, e);
              throw transformStream._storedError;
            }

            var desiredSize = ReadableStreamDefaultControllerGetDesiredSize(controller);
            var maybeBackpressure = desiredSize <= 0;

            if (maybeBackpressure === true && transformStream._backpressure === false) {
              TransformStreamSetBackpressure(transformStream, true);
            }
          }

          function TransformStreamError(transformStream, e) {
            if (transformStream._errored === true) {
              throw new TypeError('TransformStream is already errored');
            }

            TransformStreamErrorInternal(transformStream, e);
          }

          function TransformStreamCloseReadableInternal(transformStream) {
            assert(transformStream._errored === false);
            assert(transformStream._readableClosed === false);

            try {
              ReadableStreamDefaultControllerClose(transformStream._readableController);
            } catch (e) {
              assert(false);
            }

            transformStream._readableClosed = true;
          }

          function TransformStreamErrorIfNeeded(transformStream, e) {
            if (transformStream._errored === false) {
              TransformStreamErrorInternal(transformStream, e);
            }
          }

          function TransformStreamErrorInternal(transformStream, e) {
            assert(transformStream._errored === false);
            transformStream._errored = true;
            transformStream._storedError = e;

            if (transformStream._writableDone === false) {
              WritableStreamDefaultControllerError(transformStream._writableController, e);
            }

            if (transformStream._readableClosed === false) {
              ReadableStreamDefaultControllerError(transformStream._readableController, e);
            }
          }

          function TransformStreamReadableReadyPromise(transformStream) {
            assert(transformStream._backpressureChangePromise !== undefined, '_backpressureChangePromise should have been initialized');

            if (transformStream._backpressure === false) {
              return Promise.resolve();
            }

            assert(transformStream._backpressure === true, '_backpressure should have been initialized');
            return transformStream._backpressureChangePromise;
          }

          function TransformStreamSetBackpressure(transformStream, backpressure) {
            assert(transformStream._backpressure !== backpressure, 'TransformStreamSetBackpressure() should be called only when backpressure is changed');

            if (transformStream._backpressureChangePromise !== undefined) {
              transformStream._backpressureChangePromise_resolve(backpressure);
            }

            transformStream._backpressureChangePromise = new Promise(function (resolve) {
              transformStream._backpressureChangePromise_resolve = resolve;
            });

            transformStream._backpressureChangePromise.then(function (resolution) {
              assert(resolution !== backpressure, '_backpressureChangePromise should be fulfilled only when backpressure is changed');
            });

            transformStream._backpressure = backpressure;
          }

          function TransformStreamDefaultTransform(chunk, transformStreamController) {
            var transformStream = transformStreamController._controlledTransformStream;
            TransformStreamEnqueueToReadable(transformStream, chunk);
            return Promise.resolve();
          }

          function TransformStreamTransform(transformStream, chunk) {
            assert(transformStream._errored === false);
            assert(transformStream._transforming === false);
            assert(transformStream._backpressure === false);
            transformStream._transforming = true;
            var transformer = transformStream._transformer;
            var controller = transformStream._transformStreamController;
            var transformPromise = PromiseInvokeOrPerformFallback(transformer, 'transform', [chunk, controller], TransformStreamDefaultTransform, [chunk, controller]);
            return transformPromise.then(function () {
              transformStream._transforming = false;
              return TransformStreamReadableReadyPromise(transformStream);
            }, function (e) {
              TransformStreamErrorIfNeeded(transformStream, e);
              return Promise.reject(e);
            });
          }

          function IsTransformStreamDefaultController(x) {
            if (!typeIsObject(x)) {
              return false;
            }

            if (!Object.prototype.hasOwnProperty.call(x, '_controlledTransformStream')) {
              return false;
            }

            return true;
          }

          function IsTransformStream(x) {
            if (!typeIsObject(x)) {
              return false;
            }

            if (!Object.prototype.hasOwnProperty.call(x, '_transformStreamController')) {
              return false;
            }

            return true;
          }

          var TransformStreamSink = function () {
            function TransformStreamSink(transformStream, startPromise) {
              _classCallCheck(this, TransformStreamSink);

              this._transformStream = transformStream;
              this._startPromise = startPromise;
            }

            _createClass(TransformStreamSink, [{
              key: 'start',
              value: function start(c) {
                var transformStream = this._transformStream;
                transformStream._writableController = c;
                return this._startPromise.then(function () {
                  return TransformStreamReadableReadyPromise(transformStream);
                });
              }
            }, {
              key: 'write',
              value: function write(chunk) {
                var transformStream = this._transformStream;
                return TransformStreamTransform(transformStream, chunk);
              }
            }, {
              key: 'abort',
              value: function abort() {
                var transformStream = this._transformStream;
                transformStream._writableDone = true;
                TransformStreamErrorInternal(transformStream, new TypeError('Writable side aborted'));
              }
            }, {
              key: 'close',
              value: function close() {
                var transformStream = this._transformStream;
                assert(transformStream._transforming === false);
                transformStream._writableDone = true;
                var flushPromise = PromiseInvokeOrNoop(transformStream._transformer, 'flush', [transformStream._transformStreamController]);
                return flushPromise.then(function () {
                  if (transformStream._errored === true) {
                    return Promise.reject(transformStream._storedError);
                  }

                  if (transformStream._readableClosed === false) {
                    TransformStreamCloseReadableInternal(transformStream);
                  }

                  return Promise.resolve();
                }).catch(function (r) {
                  TransformStreamErrorIfNeeded(transformStream, r);
                  return Promise.reject(transformStream._storedError);
                });
              }
            }]);

            return TransformStreamSink;
          }();

          var TransformStreamSource = function () {
            function TransformStreamSource(transformStream, startPromise) {
              _classCallCheck(this, TransformStreamSource);

              this._transformStream = transformStream;
              this._startPromise = startPromise;
            }

            _createClass(TransformStreamSource, [{
              key: 'start',
              value: function start(c) {
                var transformStream = this._transformStream;
                transformStream._readableController = c;
                return this._startPromise.then(function () {
                  assert(transformStream._backpressureChangePromise !== undefined, '_backpressureChangePromise should have been initialized');

                  if (transformStream._backpressure === true) {
                    return Promise.resolve();
                  }

                  assert(transformStream._backpressure === false, '_backpressure should have been initialized');
                  return transformStream._backpressureChangePromise;
                });
              }
            }, {
              key: 'pull',
              value: function pull() {
                var transformStream = this._transformStream;
                assert(transformStream._backpressure === true, 'pull() should be never called while _backpressure is false');
                assert(transformStream._backpressureChangePromise !== undefined, '_backpressureChangePromise should have been initialized');
                TransformStreamSetBackpressure(transformStream, false);
                return transformStream._backpressureChangePromise;
              }
            }, {
              key: 'cancel',
              value: function cancel() {
                var transformStream = this._transformStream;
                transformStream._readableClosed = true;
                TransformStreamErrorInternal(transformStream, new TypeError('Readable side canceled'));
              }
            }]);

            return TransformStreamSource;
          }();

          var TransformStreamDefaultController = function () {
            function TransformStreamDefaultController(transformStream) {
              _classCallCheck(this, TransformStreamDefaultController);

              if (IsTransformStream(transformStream) === false) {
                throw new TypeError('TransformStreamDefaultController can only be ' + 'constructed with a TransformStream instance');
              }

              if (transformStream._transformStreamController !== undefined) {
                throw new TypeError('TransformStreamDefaultController instances can ' + 'only be created by the TransformStream constructor');
              }

              this._controlledTransformStream = transformStream;
            }

            _createClass(TransformStreamDefaultController, [{
              key: 'enqueue',
              value: function enqueue(chunk) {
                if (IsTransformStreamDefaultController(this) === false) {
                  throw defaultControllerBrandCheckException('enqueue');
                }

                TransformStreamEnqueueToReadable(this._controlledTransformStream, chunk);
              }
            }, {
              key: 'close',
              value: function close() {
                if (IsTransformStreamDefaultController(this) === false) {
                  throw defaultControllerBrandCheckException('close');
                }

                TransformStreamCloseReadable(this._controlledTransformStream);
              }
            }, {
              key: 'error',
              value: function error(reason) {
                if (IsTransformStreamDefaultController(this) === false) {
                  throw defaultControllerBrandCheckException('error');
                }

                TransformStreamError(this._controlledTransformStream, reason);
              }
            }, {
              key: 'desiredSize',
              get: function get() {
                if (IsTransformStreamDefaultController(this) === false) {
                  throw defaultControllerBrandCheckException('desiredSize');
                }

                var transformStream = this._controlledTransformStream;
                var readableController = transformStream._readableController;
                return ReadableStreamDefaultControllerGetDesiredSize(readableController);
              }
            }]);

            return TransformStreamDefaultController;
          }();

          var TransformStream = function () {
            function TransformStream() {
              var transformer = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

              _classCallCheck(this, TransformStream);

              this._transformer = transformer;
              var readableStrategy = transformer.readableStrategy,
                writableStrategy = transformer.writableStrategy;
              this._transforming = false;
              this._errored = false;
              this._storedError = undefined;
              this._writableController = undefined;
              this._readableController = undefined;
              this._transformStreamController = undefined;
              this._writableDone = false;
              this._readableClosed = false;
              this._backpressure = undefined;
              this._backpressureChangePromise = undefined;
              this._backpressureChangePromise_resolve = undefined;
              this._transformStreamController = new TransformStreamDefaultController(this);
              var startPromise_resolve = void 0;
              var startPromise = new Promise(function (resolve) {
                startPromise_resolve = resolve;
              });
              var source = new TransformStreamSource(this, startPromise);
              this._readable = new ReadableStream(source, readableStrategy);
              var sink = new TransformStreamSink(this, startPromise);
              this._writable = new WritableStream(sink, writableStrategy);
              assert(this._writableController !== undefined);
              assert(this._readableController !== undefined);
              var desiredSize = ReadableStreamDefaultControllerGetDesiredSize(this._readableController);
              TransformStreamSetBackpressure(this, desiredSize <= 0);
              var transformStream = this;
              var startResult = InvokeOrNoop(transformer, 'start', [transformStream._transformStreamController]);
              startPromise_resolve(startResult);
              startPromise.catch(function (e) {
                if (transformStream._errored === false) {
                  transformStream._errored = true;
                  transformStream._storedError = e;
                }
              });
            }

            _createClass(TransformStream, [{
              key: 'readable',
              get: function get() {
                if (IsTransformStream(this) === false) {
                  throw streamBrandCheckException('readable');
                }

                return this._readable;
              }
            }, {
              key: 'writable',
              get: function get() {
                if (IsTransformStream(this) === false) {
                  throw streamBrandCheckException('writable');
                }

                return this._writable;
              }
            }]);

            return TransformStream;
          }();

          module.exports = {
            TransformStream: TransformStream
          };

          function defaultControllerBrandCheckException(name) {
            return new TypeError('TransformStreamDefaultController.prototype.' + name + ' can only be used on a TransformStreamDefaultController');
          }

          function streamBrandCheckException(name) {
            return new TypeError('TransformStream.prototype.' + name + ' can only be used on a TransformStream');
          }
        }, function (module, exports, __w_pdfjs_require__) {
          module.exports = __w_pdfjs_require__(5);
        }]));

        /***/
      }),
      /* 144 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        function _typeof(obj) {
          if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof = function _typeof(obj) {
              return typeof obj;
            };
          } else {
            _typeof = function _typeof(obj) {
              return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
          }
          return _typeof(obj);
        }

        {
          var isURLSupported = false;

          try {
            if (typeof URL === 'function' && _typeof(URL.prototype) === 'object' && 'origin' in URL.prototype) {
              var u = new URL('b', 'http://a');
              u.pathname = 'c%20d';
              isURLSupported = u.href === 'http://a/c%20d';
            }
          } catch (ex) {
          }

          if (isURLSupported) {
            exports.URL = URL;
          } else {
            var PolyfillURL = __w_pdfjs_require__(145).URL;

            var OriginalURL = __w_pdfjs_require__(3).URL;

            if (OriginalURL) {
              PolyfillURL.createObjectURL = function (blob) {
                return OriginalURL.createObjectURL.apply(OriginalURL, arguments);
              };

              PolyfillURL.revokeObjectURL = function (url) {
                OriginalURL.revokeObjectURL(url);
              };
            }

            exports.URL = PolyfillURL;
          }
        }

        /***/
      }),
      /* 145 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        (function URLConstructorClosure() {
          'use strict';

          var relative = Object.create(null);
          relative['ftp'] = 21;
          relative['file'] = 0;
          relative['gopher'] = 70;
          relative['http'] = 80;
          relative['https'] = 443;
          relative['ws'] = 80;
          relative['wss'] = 443;
          var relativePathDotMapping = Object.create(null);
          relativePathDotMapping['%2e'] = '.';
          relativePathDotMapping['.%2e'] = '..';
          relativePathDotMapping['%2e.'] = '..';
          relativePathDotMapping['%2e%2e'] = '..';

          function isRelativeScheme(scheme) {
            return relative[scheme] !== undefined;
          }

          function invalid() {
            clear.call(this);
            this._isInvalid = true;
          }

          function IDNAToASCII(h) {
            if (h === '') {
              invalid.call(this);
            }

            return h.toLowerCase();
          }

          function percentEscape(c) {
            var unicode = c.charCodeAt(0);

            if (unicode > 0x20 && unicode < 0x7F && [0x22, 0x23, 0x3C, 0x3E, 0x3F, 0x60].indexOf(unicode) === -1) {
              return c;
            }

            return encodeURIComponent(c);
          }

          function percentEscapeQuery(c) {
            var unicode = c.charCodeAt(0);

            if (unicode > 0x20 && unicode < 0x7F && [0x22, 0x23, 0x3C, 0x3E, 0x60].indexOf(unicode) === -1) {
              return c;
            }

            return encodeURIComponent(c);
          }

          var EOF,
            ALPHA = /[a-zA-Z]/,
            ALPHANUMERIC = /[a-zA-Z0-9\+\-\.]/;

          function parse(input, stateOverride, base) {
            function err(message) {
              errors.push(message);
            }

            var state = stateOverride || 'scheme start',
              cursor = 0,
              buffer = '',
              seenAt = false,
              seenBracket = false,
              errors = [];

            loop: while ((input[cursor - 1] !== EOF || cursor === 0) && !this._isInvalid) {
              var c = input[cursor];

              switch (state) {
                case 'scheme start':
                  if (c && ALPHA.test(c)) {
                    buffer += c.toLowerCase();
                    state = 'scheme';
                  } else if (!stateOverride) {
                    buffer = '';
                    state = 'no scheme';
                    continue;
                  } else {
                    err('Invalid scheme.');
                    break loop;
                  }

                  break;

                case 'scheme':
                  if (c && ALPHANUMERIC.test(c)) {
                    buffer += c.toLowerCase();
                  } else if (c === ':') {
                    this._scheme = buffer;
                    buffer = '';

                    if (stateOverride) {
                      break loop;
                    }

                    if (isRelativeScheme(this._scheme)) {
                      this._isRelative = true;
                    }

                    if (this._scheme === 'file') {
                      state = 'relative';
                    } else if (this._isRelative && base && base._scheme === this._scheme) {
                      state = 'relative or authority';
                    } else if (this._isRelative) {
                      state = 'authority first slash';
                    } else {
                      state = 'scheme data';
                    }
                  } else if (!stateOverride) {
                    buffer = '';
                    cursor = 0;
                    state = 'no scheme';
                    continue;
                  } else if (c === EOF) {
                    break loop;
                  } else {
                    err('Code point not allowed in scheme: ' + c);
                    break loop;
                  }

                  break;

                case 'scheme data':
                  if (c === '?') {
                    this._query = '?';
                    state = 'query';
                  } else if (c === '#') {
                    this._fragment = '#';
                    state = 'fragment';
                  } else {
                    if (c !== EOF && c !== '\t' && c !== '\n' && c !== '\r') {
                      this._schemeData += percentEscape(c);
                    }
                  }

                  break;

                case 'no scheme':
                  if (!base || !isRelativeScheme(base._scheme)) {
                    err('Missing scheme.');
                    invalid.call(this);
                  } else {
                    state = 'relative';
                    continue;
                  }

                  break;

                case 'relative or authority':
                  if (c === '/' && input[cursor + 1] === '/') {
                    state = 'authority ignore slashes';
                  } else {
                    err('Expected /, got: ' + c);
                    state = 'relative';
                    continue;
                  }

                  break;

                case 'relative':
                  this._isRelative = true;

                  if (this._scheme !== 'file') {
                    this._scheme = base._scheme;
                  }

                  if (c === EOF) {
                    this._host = base._host;
                    this._port = base._port;
                    this._path = base._path.slice();
                    this._query = base._query;
                    this._username = base._username;
                    this._password = base._password;
                    break loop;
                  } else if (c === '/' || c === '\\') {
                    if (c === '\\') {
                      err('\\ is an invalid code point.');
                    }

                    state = 'relative slash';
                  } else if (c === '?') {
                    this._host = base._host;
                    this._port = base._port;
                    this._path = base._path.slice();
                    this._query = '?';
                    this._username = base._username;
                    this._password = base._password;
                    state = 'query';
                  } else if (c === '#') {
                    this._host = base._host;
                    this._port = base._port;
                    this._path = base._path.slice();
                    this._query = base._query;
                    this._fragment = '#';
                    this._username = base._username;
                    this._password = base._password;
                    state = 'fragment';
                  } else {
                    var nextC = input[cursor + 1];
                    var nextNextC = input[cursor + 2];

                    if (this._scheme !== 'file' || !ALPHA.test(c) || nextC !== ':' && nextC !== '|' || nextNextC !== EOF && nextNextC !== '/' && nextNextC !== '\\' && nextNextC !== '?' && nextNextC !== '#') {
                      this._host = base._host;
                      this._port = base._port;
                      this._username = base._username;
                      this._password = base._password;
                      this._path = base._path.slice();

                      this._path.pop();
                    }

                    state = 'relative path';
                    continue;
                  }

                  break;

                case 'relative slash':
                  if (c === '/' || c === '\\') {
                    if (c === '\\') {
                      err('\\ is an invalid code point.');
                    }

                    if (this._scheme === 'file') {
                      state = 'file host';
                    } else {
                      state = 'authority ignore slashes';
                    }
                  } else {
                    if (this._scheme !== 'file') {
                      this._host = base._host;
                      this._port = base._port;
                      this._username = base._username;
                      this._password = base._password;
                    }

                    state = 'relative path';
                    continue;
                  }

                  break;

                case 'authority first slash':
                  if (c === '/') {
                    state = 'authority second slash';
                  } else {
                    err('Expected \'/\', got: ' + c);
                    state = 'authority ignore slashes';
                    continue;
                  }

                  break;

                case 'authority second slash':
                  state = 'authority ignore slashes';

                  if (c !== '/') {
                    err('Expected \'/\', got: ' + c);
                    continue;
                  }

                  break;

                case 'authority ignore slashes':
                  if (c !== '/' && c !== '\\') {
                    state = 'authority';
                    continue;
                  } else {
                    err('Expected authority, got: ' + c);
                  }

                  break;

                case 'authority':
                  if (c === '@') {
                    if (seenAt) {
                      err('@ already seen.');
                      buffer += '%40';
                    }

                    seenAt = true;

                    for (var i = 0; i < buffer.length; i++) {
                      var cp = buffer[i];

                      if (cp === '\t' || cp === '\n' || cp === '\r') {
                        err('Invalid whitespace in authority.');
                        continue;
                      }

                      if (cp === ':' && this._password === null) {
                        this._password = '';
                        continue;
                      }

                      var tempC = percentEscape(cp);

                      if (this._password !== null) {
                        this._password += tempC;
                      } else {
                        this._username += tempC;
                      }
                    }

                    buffer = '';
                  } else if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#') {
                    cursor -= buffer.length;
                    buffer = '';
                    state = 'host';
                    continue;
                  } else {
                    buffer += c;
                  }

                  break;

                case 'file host':
                  if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#') {
                    if (buffer.length === 2 && ALPHA.test(buffer[0]) && (buffer[1] === ':' || buffer[1] === '|')) {
                      state = 'relative path';
                    } else if (buffer.length === 0) {
                      state = 'relative path start';
                    } else {
                      this._host = IDNAToASCII.call(this, buffer);
                      buffer = '';
                      state = 'relative path start';
                    }

                    continue;
                  } else if (c === '\t' || c === '\n' || c === '\r') {
                    err('Invalid whitespace in file host.');
                  } else {
                    buffer += c;
                  }

                  break;

                case 'host':
                case 'hostname':
                  if (c === ':' && !seenBracket) {
                    this._host = IDNAToASCII.call(this, buffer);
                    buffer = '';
                    state = 'port';

                    if (stateOverride === 'hostname') {
                      break loop;
                    }
                  } else if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#') {
                    this._host = IDNAToASCII.call(this, buffer);
                    buffer = '';
                    state = 'relative path start';

                    if (stateOverride) {
                      break loop;
                    }

                    continue;
                  } else if (c !== '\t' && c !== '\n' && c !== '\r') {
                    if (c === '[') {
                      seenBracket = true;
                    } else if (c === ']') {
                      seenBracket = false;
                    }

                    buffer += c;
                  } else {
                    err('Invalid code point in host/hostname: ' + c);
                  }

                  break;

                case 'port':
                  if (/[0-9]/.test(c)) {
                    buffer += c;
                  } else if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#' || stateOverride) {
                    if (buffer !== '') {
                      var temp = parseInt(buffer, 10);

                      if (temp !== relative[this._scheme]) {
                        this._port = temp + '';
                      }

                      buffer = '';
                    }

                    if (stateOverride) {
                      break loop;
                    }

                    state = 'relative path start';
                    continue;
                  } else if (c === '\t' || c === '\n' || c === '\r') {
                    err('Invalid code point in port: ' + c);
                  } else {
                    invalid.call(this);
                  }

                  break;

                case 'relative path start':
                  if (c === '\\') {
                    err('\'\\\' not allowed in path.');
                  }

                  state = 'relative path';

                  if (c !== '/' && c !== '\\') {
                    continue;
                  }

                  break;

                case 'relative path':
                  if (c === EOF || c === '/' || c === '\\' || !stateOverride && (c === '?' || c === '#')) {
                    if (c === '\\') {
                      err('\\ not allowed in relative path.');
                    }

                    var tmp;

                    if (tmp = relativePathDotMapping[buffer.toLowerCase()]) {
                      buffer = tmp;
                    }

                    if (buffer === '..') {
                      this._path.pop();

                      if (c !== '/' && c !== '\\') {
                        this._path.push('');
                      }
                    } else if (buffer === '.' && c !== '/' && c !== '\\') {
                      this._path.push('');
                    } else if (buffer !== '.') {
                      if (this._scheme === 'file' && this._path.length === 0 && buffer.length === 2 && ALPHA.test(buffer[0]) && buffer[1] === '|') {
                        buffer = buffer[0] + ':';
                      }

                      this._path.push(buffer);
                    }

                    buffer = '';

                    if (c === '?') {
                      this._query = '?';
                      state = 'query';
                    } else if (c === '#') {
                      this._fragment = '#';
                      state = 'fragment';
                    }
                  } else if (c !== '\t' && c !== '\n' && c !== '\r') {
                    buffer += percentEscape(c);
                  }

                  break;

                case 'query':
                  if (!stateOverride && c === '#') {
                    this._fragment = '#';
                    state = 'fragment';
                  } else if (c !== EOF && c !== '\t' && c !== '\n' && c !== '\r') {
                    this._query += percentEscapeQuery(c);
                  }

                  break;

                case 'fragment':
                  if (c !== EOF && c !== '\t' && c !== '\n' && c !== '\r') {
                    this._fragment += c;
                  }

                  break;
              }

              cursor++;
            }
          }

          function clear() {
            this._scheme = '';
            this._schemeData = '';
            this._username = '';
            this._password = null;
            this._host = '';
            this._port = '';
            this._path = [];
            this._query = '';
            this._fragment = '';
            this._isInvalid = false;
            this._isRelative = false;
          }

          function JURL(url, base) {
            if (base !== undefined && !(base instanceof JURL)) {
              base = new JURL(String(base));
            }

            this._url = url;
            clear.call(this);
            var input = url.replace(/^[ \t\r\n\f]+|[ \t\r\n\f]+$/g, '');
            parse.call(this, input, null, base);
          }

          JURL.prototype = {
            toString: function toString() {
              return this.href;
            },

            get href() {
              if (this._isInvalid) {
                return this._url;
              }

              var authority = '';

              if (this._username !== '' || this._password !== null) {
                authority = this._username + (this._password !== null ? ':' + this._password : '') + '@';
              }

              return this.protocol + (this._isRelative ? '//' + authority + this.host : '') + this.pathname + this._query + this._fragment;
            },

            set href(value) {
              clear.call(this);
              parse.call(this, value);
            },

            get protocol() {
              return this._scheme + ':';
            },

            set protocol(value) {
              if (this._isInvalid) {
                return;
              }

              parse.call(this, value + ':', 'scheme start');
            },

            get host() {
              return this._isInvalid ? '' : this._port ? this._host + ':' + this._port : this._host;
            },

            set host(value) {
              if (this._isInvalid || !this._isRelative) {
                return;
              }

              parse.call(this, value, 'host');
            },

            get hostname() {
              return this._host;
            },

            set hostname(value) {
              if (this._isInvalid || !this._isRelative) {
                return;
              }

              parse.call(this, value, 'hostname');
            },

            get port() {
              return this._port;
            },

            set port(value) {
              if (this._isInvalid || !this._isRelative) {
                return;
              }

              parse.call(this, value, 'port');
            },

            get pathname() {
              return this._isInvalid ? '' : this._isRelative ? '/' + this._path.join('/') : this._schemeData;
            },

            set pathname(value) {
              if (this._isInvalid || !this._isRelative) {
                return;
              }

              this._path = [];
              parse.call(this, value, 'relative path start');
            },

            get search() {
              return this._isInvalid || !this._query || this._query === '?' ? '' : this._query;
            },

            set search(value) {
              if (this._isInvalid || !this._isRelative) {
                return;
              }

              this._query = '?';

              if (value[0] === '?') {
                value = value.slice(1);
              }

              parse.call(this, value, 'query');
            },

            get hash() {
              return this._isInvalid || !this._fragment || this._fragment === '#' ? '' : this._fragment;
            },

            set hash(value) {
              if (this._isInvalid) {
                return;
              }

              this._fragment = '#';

              if (value[0] === '#') {
                value = value.slice(1);
              }

              parse.call(this, value, 'fragment');
            },

            get origin() {
              var host;

              if (this._isInvalid || !this._scheme) {
                return '';
              }

              switch (this._scheme) {
                case 'data':
                case 'file':
                case 'javascript':
                case 'mailto':
                  return 'null';

                case 'blob':
                  try {
                    return new JURL(this._schemeData).origin || 'null';
                  } catch (_) {
                  }

                  return 'null';
              }

              host = this.host;

              if (!host) {
                return '';
              }

              return this._scheme + '://' + host;
            }

          };
          exports.URL = JURL;
        })();

        /***/
      }),
      /* 146 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.getDocument = getDocument;
        exports.setPDFNetworkStreamFactory = setPDFNetworkStreamFactory;
        exports.build = exports.version = exports.PDFPageProxy = exports.PDFDocumentProxy = exports.PDFWorker = exports.PDFDataRangeTransport = exports.LoopbackPort = void 0;

        var _regenerator = _interopRequireDefault(__w_pdfjs_require__(147));

        var _util = __w_pdfjs_require__(1);

        var _dom_utils = __w_pdfjs_require__(151);

        var _font_loader = __w_pdfjs_require__(152);

        var _api_compatibility = __w_pdfjs_require__(153);

        var _canvas = __w_pdfjs_require__(154);

        var _global_scope = _interopRequireDefault(__w_pdfjs_require__(3));

        var _worker_options = __w_pdfjs_require__(156);

        var _message_handler = __w_pdfjs_require__(157);

        var _metadata = __w_pdfjs_require__(158);

        var _transport_stream = __w_pdfjs_require__(160);

        var _webgl = __w_pdfjs_require__(161);

        function _interopRequireDefault(obj) {
          return obj && obj.__esModule ? obj : {default: obj};
        }

        function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
          try {
            var info = gen[key](arg);
            var value = info.value;
          } catch (error) {
            reject(error);
            return;
          }
          if (info.done) {
            resolve(value);
          } else {
            Promise.resolve(value).then(_next, _throw);
          }
        }

        function _asyncToGenerator(fn) {
          return function () {
            var self = this, args = arguments;
            return new Promise(function (resolve, reject) {
              var gen = fn.apply(self, args);

              function _next(value) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
              }

              function _throw(err) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
              }

              _next(undefined);
            });
          };
        }

        function _slicedToArray(arr, i) {
          return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest();
        }

        function _nonIterableRest() {
          throw new TypeError("Invalid attempt to destructure non-iterable instance");
        }

        function _iterableToArrayLimit(arr, i) {
          var _arr = [];
          var _n = true;
          var _d = false;
          var _e = undefined;
          try {
            for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
              _arr.push(_s.value);
              if (i && _arr.length === i) break;
            }
          } catch (err) {
            _d = true;
            _e = err;
          } finally {
            try {
              if (!_n && _i["return"] != null) _i["return"]();
            } finally {
              if (_d) throw _e;
            }
          }
          return _arr;
        }

        function _arrayWithHoles(arr) {
          if (Array.isArray(arr)) return arr;
        }

        function _toConsumableArray(arr) {
          return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread();
        }

        function _nonIterableSpread() {
          throw new TypeError("Invalid attempt to spread non-iterable instance");
        }

        function _iterableToArray(iter) {
          if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter);
        }

        function _arrayWithoutHoles(arr) {
          if (Array.isArray(arr)) {
            for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) {
              arr2[i] = arr[i];
            }
            return arr2;
          }
        }

        function _classCallCheck(instance, Constructor) {
          if (!(instance instanceof Constructor)) {
            throw new TypeError("Cannot call a class as a function");
          }
        }

        function _defineProperties(target, props) {
          for (var i = 0; i < props.length; i++) {
            var descriptor = props[i];
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ("value" in descriptor) descriptor.writable = true;
            Object.defineProperty(target, descriptor.key, descriptor);
          }
        }

        function _createClass(Constructor, protoProps, staticProps) {
          if (protoProps) _defineProperties(Constructor.prototype, protoProps);
          if (staticProps) _defineProperties(Constructor, staticProps);
          return Constructor;
        }

        function _typeof(obj) {
          if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof = function _typeof(obj) {
              return typeof obj;
            };
          } else {
            _typeof = function _typeof(obj) {
              return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
          }
          return _typeof(obj);
        }

        var DEFAULT_RANGE_CHUNK_SIZE = 65536;
        var isWorkerDisabled = false;
        var fallbackWorkerSrc;
        var fakeWorkerFilesLoader = null;
        {
          var useRequireEnsure = false;

          if (typeof window === 'undefined') {
            isWorkerDisabled = true;

            if (typeof require.ensure === 'undefined') {
              require.ensure = require('node-ensure');
            }

            useRequireEnsure = true;
          } else if (typeof require !== 'undefined' && typeof require.ensure === 'function') {
            useRequireEnsure = true;
          }

          if (typeof requirejs !== 'undefined' && requirejs.toUrl) {
            fallbackWorkerSrc = requirejs.toUrl('pdfjs-dist/build/pdf.worker.js');
          }

          var dynamicLoaderSupported = typeof requirejs !== 'undefined' && requirejs.load;
          fakeWorkerFilesLoader = useRequireEnsure ? function () {
            return new Promise(function (resolve, reject) {
              require.ensure([], function () {
                try {
                  var worker;
                  worker = require('./pdf.worker.js');
                  resolve(worker.WorkerMessageHandler);
                } catch (ex) {
                  reject(ex);
                }
              }, reject, 'pdfjsWorker');
            });
          } : dynamicLoaderSupported ? function () {
            return new Promise(function (resolve, reject) {
              requirejs(['pdfjs-dist/build/pdf.worker'], function (worker) {
                try {
                  resolve(worker.WorkerMessageHandler);
                } catch (ex) {
                  reject(ex);
                }
              }, reject);
            });
          } : null;

          if (!fallbackWorkerSrc && (typeof document === "undefined" ? "undefined" : _typeof(document)) === 'object' && 'currentScript' in document) {
            var pdfjsFilePath = document.currentScript && document.currentScript.src;

            if (pdfjsFilePath) {
              fallbackWorkerSrc = pdfjsFilePath.replace(/(\.(?:min\.)?js)(\?.*)?$/i, '.worker$1$2');
            }
          }
        }
        var createPDFNetworkStream;

        function setPDFNetworkStreamFactory(pdfNetworkStreamFactory) {
          createPDFNetworkStream = pdfNetworkStreamFactory;
        }

        function getDocument(src) {
          var task = new PDFDocumentLoadingTask();
          var source;

          if (typeof src === 'string') {
            source = {
              url: src
            };
          } else if ((0, _util.isArrayBuffer)(src)) {
            source = {
              data: src
            };
          } else if (src instanceof PDFDataRangeTransport) {
            source = {
              range: src
            };
          } else {
            if (_typeof(src) !== 'object') {
              throw new Error('Invalid parameter in getDocument, ' + 'need either Uint8Array, string or a parameter object');
            }

            if (!src.url && !src.data && !src.range) {
              throw new Error('Invalid parameter object: need either .data, .range or .url');
            }

            source = src;
          }

          var params = Object.create(null);
          var rangeTransport = null,
            worker = null;

          for (var key in source) {
            if (key === 'url' && typeof window !== 'undefined') {
              params[key] = new _util.URL(source[key], window.location).href;
              continue;
            } else if (key === 'range') {
              rangeTransport = source[key];
              continue;
            } else if (key === 'worker') {
              worker = source[key];
              continue;
            } else if (key === 'data' && !(source[key] instanceof Uint8Array)) {
              var pdfBytes = source[key];

              if (typeof pdfBytes === 'string') {
                params[key] = (0, _util.stringToBytes)(pdfBytes);
              } else if (_typeof(pdfBytes) === 'object' && pdfBytes !== null && !isNaN(pdfBytes.length)) {
                params[key] = new Uint8Array(pdfBytes);
              } else if ((0, _util.isArrayBuffer)(pdfBytes)) {
                params[key] = new Uint8Array(pdfBytes);
              } else {
                throw new Error('Invalid PDF binary data: either typed array, ' + 'string or array-like object is expected in the ' + 'data property.');
              }

              continue;
            }

            params[key] = source[key];
          }

          params.rangeChunkSize = params.rangeChunkSize || DEFAULT_RANGE_CHUNK_SIZE;
          params.CMapReaderFactory = params.CMapReaderFactory || _dom_utils.DOMCMapReaderFactory;
          params.ignoreErrors = params.stopAtErrors !== true;
          params.pdfBug = params.pdfBug === true;
          var NativeImageDecoderValues = Object.values(_util.NativeImageDecoding);

          if (params.nativeImageDecoderSupport === undefined || !NativeImageDecoderValues.includes(params.nativeImageDecoderSupport)) {
            params.nativeImageDecoderSupport = _api_compatibility.apiCompatibilityParams.nativeImageDecoderSupport || _util.NativeImageDecoding.DECODE;
          }

          if (!Number.isInteger(params.maxImageSize)) {
            params.maxImageSize = -1;
          }

          if (typeof params.isEvalSupported !== 'boolean') {
            params.isEvalSupported = true;
          }

          if (typeof params.disableFontFace !== 'boolean') {
            params.disableFontFace = _api_compatibility.apiCompatibilityParams.disableFontFace || false;
          }

          if (typeof params.disableRange !== 'boolean') {
            params.disableRange = false;
          }

          if (typeof params.disableStream !== 'boolean') {
            params.disableStream = false;
          }

          if (typeof params.disableAutoFetch !== 'boolean') {
            params.disableAutoFetch = false;
          }

          if (typeof params.disableCreateObjectURL !== 'boolean') {
            params.disableCreateObjectURL = _api_compatibility.apiCompatibilityParams.disableCreateObjectURL || false;
          }

          (0, _util.setVerbosityLevel)(params.verbosity);

          if (!worker) {
            var workerParams = {
              postMessageTransfers: params.postMessageTransfers,
              verbosity: params.verbosity,
              port: _worker_options.GlobalWorkerOptions.workerPort
            };
            worker = workerParams.port ? PDFWorker.fromPort(workerParams) : new PDFWorker(workerParams);
            task._worker = worker;
          }

          var docId = task.docId;
          worker.promise.then(function () {
            if (task.destroyed) {
              throw new Error('Loading aborted');
            }

            return _fetchDocument(worker, params, rangeTransport, docId).then(function (workerId) {
              if (task.destroyed) {
                throw new Error('Loading aborted');
              }

              var networkStream;

              if (rangeTransport) {
                networkStream = new _transport_stream.PDFDataTransportStream({
                  length: params.length,
                  initialData: params.initialData,
                  disableRange: params.disableRange,
                  disableStream: params.disableStream
                }, rangeTransport);
              } else if (!params.data) {
                networkStream = createPDFNetworkStream({
                  url: params.url,
                  length: params.length,
                  httpHeaders: params.httpHeaders,
                  withCredentials: params.withCredentials,
                  rangeChunkSize: params.rangeChunkSize,
                  disableRange: params.disableRange,
                  disableStream: params.disableStream
                });
              }

              var messageHandler = new _message_handler.MessageHandler(docId, workerId, worker.port);
              messageHandler.postMessageTransfers = worker.postMessageTransfers;
              var transport = new WorkerTransport(messageHandler, task, networkStream, params);
              task._transport = transport;
              messageHandler.send('Ready', null);
            });
          }).catch(task._capability.reject);
          return task;
        }

        function _fetchDocument(worker, source, pdfDataRangeTransport, docId) {
          if (worker.destroyed) {
            return Promise.reject(new Error('Worker was destroyed'));
          }

          if (pdfDataRangeTransport) {
            source.length = pdfDataRangeTransport.length;
            source.initialData = pdfDataRangeTransport.initialData;
          }

          return worker.messageHandler.sendWithPromise('GetDocRequest', {
            docId: docId,
            apiVersion: '2.1.266',
            source: {
              data: source.data,
              url: source.url,
              password: source.password,
              disableAutoFetch: source.disableAutoFetch,
              rangeChunkSize: source.rangeChunkSize,
              length: source.length
            },
            maxImageSize: source.maxImageSize,
            disableFontFace: source.disableFontFace,
            disableCreateObjectURL: source.disableCreateObjectURL,
            postMessageTransfers: worker.postMessageTransfers,
            docBaseUrl: source.docBaseUrl,
            nativeImageDecoderSupport: source.nativeImageDecoderSupport,
            ignoreErrors: source.ignoreErrors,
            isEvalSupported: source.isEvalSupported
          }).then(function (workerId) {
            if (worker.destroyed) {
              throw new Error('Worker was destroyed');
            }

            return workerId;
          });
        }

        var PDFDocumentLoadingTask = function PDFDocumentLoadingTaskClosure() {
          var nextDocumentId = 0;

          var PDFDocumentLoadingTask =
            /*#__PURE__*/
            function () {
              function PDFDocumentLoadingTask() {
                _classCallCheck(this, PDFDocumentLoadingTask);

                this._capability = (0, _util.createPromiseCapability)();
                this._transport = null;
                this._worker = null;
                this.docId = 'd' + nextDocumentId++;
                this.destroyed = false;
                this.onPassword = null;
                this.onProgress = null;
                this.onUnsupportedFeature = null;
              }

              _createClass(PDFDocumentLoadingTask, [{
                key: "destroy",
                value: function destroy() {
                  var _this = this;

                  this.destroyed = true;
                  var transportDestroyed = !this._transport ? Promise.resolve() : this._transport.destroy();
                  return transportDestroyed.then(function () {
                    _this._transport = null;

                    if (_this._worker) {
                      _this._worker.destroy();

                      _this._worker = null;
                    }
                  });
                }
              }, {
                key: "then",
                value: function then(onFulfilled, onRejected) {
                  (0, _util.deprecated)('PDFDocumentLoadingTask.then method, ' + 'use the `promise` getter instead.');
                  return this.promise.then.apply(this.promise, arguments);
                }
              }, {
                key: "promise",
                get: function get() {
                  return this._capability.promise;
                }
              }]);

              return PDFDocumentLoadingTask;
            }();

          return PDFDocumentLoadingTask;
        }();

        var PDFDataRangeTransport =
          /*#__PURE__*/
          function () {
            function PDFDataRangeTransport(length, initialData) {
              _classCallCheck(this, PDFDataRangeTransport);

              this.length = length;
              this.initialData = initialData;
              this._rangeListeners = [];
              this._progressListeners = [];
              this._progressiveReadListeners = [];
              this._readyCapability = (0, _util.createPromiseCapability)();
            }

            _createClass(PDFDataRangeTransport, [{
              key: "addRangeListener",
              value: function addRangeListener(listener) {
                this._rangeListeners.push(listener);
              }
            }, {
              key: "addProgressListener",
              value: function addProgressListener(listener) {
                this._progressListeners.push(listener);
              }
            }, {
              key: "addProgressiveReadListener",
              value: function addProgressiveReadListener(listener) {
                this._progressiveReadListeners.push(listener);
              }
            }, {
              key: "onDataRange",
              value: function onDataRange(begin, chunk) {
                var _iteratorNormalCompletion = true;
                var _didIteratorError = false;
                var _iteratorError = undefined;

                try {
                  for (var _iterator = this._rangeListeners[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
                    var listener = _step.value;
                    listener(begin, chunk);
                  }
                } catch (err) {
                  _didIteratorError = true;
                  _iteratorError = err;
                } finally {
                  try {
                    if (!_iteratorNormalCompletion && _iterator.return != null) {
                      _iterator.return();
                    }
                  } finally {
                    if (_didIteratorError) {
                      throw _iteratorError;
                    }
                  }
                }
              }
            }, {
              key: "onDataProgress",
              value: function onDataProgress(loaded) {
                var _this2 = this;

                this._readyCapability.promise.then(function () {
                  var _iteratorNormalCompletion2 = true;
                  var _didIteratorError2 = false;
                  var _iteratorError2 = undefined;

                  try {
                    for (var _iterator2 = _this2._progressListeners[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
                      var listener = _step2.value;
                      listener(loaded);
                    }
                  } catch (err) {
                    _didIteratorError2 = true;
                    _iteratorError2 = err;
                  } finally {
                    try {
                      if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
                        _iterator2.return();
                      }
                    } finally {
                      if (_didIteratorError2) {
                        throw _iteratorError2;
                      }
                    }
                  }
                });
              }
            }, {
              key: "onDataProgressiveRead",
              value: function onDataProgressiveRead(chunk) {
                var _this3 = this;

                this._readyCapability.promise.then(function () {
                  var _iteratorNormalCompletion3 = true;
                  var _didIteratorError3 = false;
                  var _iteratorError3 = undefined;

                  try {
                    for (var _iterator3 = _this3._progressiveReadListeners[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
                      var listener = _step3.value;
                      listener(chunk);
                    }
                  } catch (err) {
                    _didIteratorError3 = true;
                    _iteratorError3 = err;
                  } finally {
                    try {
                      if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
                        _iterator3.return();
                      }
                    } finally {
                      if (_didIteratorError3) {
                        throw _iteratorError3;
                      }
                    }
                  }
                });
              }
            }, {
              key: "transportReady",
              value: function transportReady() {
                this._readyCapability.resolve();
              }
            }, {
              key: "requestDataRange",
              value: function requestDataRange(begin, end) {
                (0, _util.unreachable)('Abstract method PDFDataRangeTransport.requestDataRange');
              }
            }, {
              key: "abort",
              value: function abort() {
              }
            }]);

            return PDFDataRangeTransport;
          }();

        exports.PDFDataRangeTransport = PDFDataRangeTransport;

        var PDFDocumentProxy =
          /*#__PURE__*/
          function () {
            function PDFDocumentProxy(pdfInfo, transport, loadingTask) {
              _classCallCheck(this, PDFDocumentProxy);

              this.loadingTask = loadingTask;
              this._pdfInfo = pdfInfo;
              this._transport = transport;
            }

            _createClass(PDFDocumentProxy, [{
              key: "getPage",
              value: function getPage(pageNumber) {
                return this._transport.getPage(pageNumber);
              }
            }, {
              key: "getPageIndex",
              value: function getPageIndex(ref) {
                return this._transport.getPageIndex(ref);
              }
            }, {
              key: "getDestinations",
              value: function getDestinations() {
                return this._transport.getDestinations();
              }
            }, {
              key: "getDestination",
              value: function getDestination(id) {
                return this._transport.getDestination(id);
              }
            }, {
              key: "getPageLabels",
              value: function getPageLabels() {
                return this._transport.getPageLabels();
              }
            }, {
              key: "getPageMode",
              value: function getPageMode() {
                return this._transport.getPageMode();
              }
            }, {
              key: "getOpenActionDestination",
              value: function getOpenActionDestination() {
                return this._transport.getOpenActionDestination();
              }
            }, {
              key: "getAttachments",
              value: function getAttachments() {
                return this._transport.getAttachments();
              }
            }, {
              key: "getJavaScript",
              value: function getJavaScript() {
                return this._transport.getJavaScript();
              }
            }, {
              key: "getOutline",
              value: function getOutline() {
                return this._transport.getOutline();
              }
            }, {
              key: "getPermissions",
              value: function getPermissions() {
                return this._transport.getPermissions();
              }
            }, {
              key: "getMetadata",
              value: function getMetadata() {
                return this._transport.getMetadata();
              }
            }, {
              key: "getData",
              value: function getData() {
                return this._transport.getData();
              }
            }, {
              key: "getDownloadInfo",
              value: function getDownloadInfo() {
                return this._transport.downloadInfoCapability.promise;
              }
            }, {
              key: "getStats",
              value: function getStats() {
                return this._transport.getStats();
              }
            }, {
              key: "cleanup",
              value: function cleanup() {
                this._transport.startCleanup();
              }
            }, {
              key: "destroy",
              value: function destroy() {
                return this.loadingTask.destroy();
              }
            }, {
              key: "numPages",
              get: function get() {
                return this._pdfInfo.numPages;
              }
            }, {
              key: "fingerprint",
              get: function get() {
                return this._pdfInfo.fingerprint;
              }
            }, {
              key: "loadingParams",
              get: function get() {
                return this._transport.loadingParams;
              }
            }]);

            return PDFDocumentProxy;
          }();

        exports.PDFDocumentProxy = PDFDocumentProxy;

        var PDFPageProxy =
          /*#__PURE__*/
          function () {
            function PDFPageProxy(pageIndex, pageInfo, transport) {
              var pdfBug = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;

              _classCallCheck(this, PDFPageProxy);

              this.pageIndex = pageIndex;
              this._pageInfo = pageInfo;
              this._transport = transport;
              this._stats = pdfBug ? new _dom_utils.StatTimer() : _dom_utils.DummyStatTimer;
              this._pdfBug = pdfBug;
              this.commonObjs = transport.commonObjs;
              this.objs = new PDFObjects();
              this.cleanupAfterRender = false;
              this.pendingCleanup = false;
              this.intentStates = Object.create(null);
              this.destroyed = false;
            }

            _createClass(PDFPageProxy, [{
              key: "getViewport",
              value: function getViewport() {
                var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
                  scale = _ref.scale,
                  _ref$rotation = _ref.rotation,
                  rotation = _ref$rotation === void 0 ? this.rotate : _ref$rotation,
                  _ref$dontFlip = _ref.dontFlip,
                  dontFlip = _ref$dontFlip === void 0 ? false : _ref$dontFlip;

                if (arguments.length > 1 || typeof arguments[0] === 'number') {
                  (0, _util.deprecated)('getViewport is called with obsolete arguments.');
                  scale = arguments[0];
                  rotation = typeof arguments[1] === 'number' ? arguments[1] : this.rotate;
                  dontFlip = typeof arguments[2] === 'boolean' ? arguments[2] : false;
                }

                return new _dom_utils.PageViewport({
                  viewBox: this.view,
                  scale: scale,
                  rotation: rotation,
                  dontFlip: dontFlip
                });
              }
            }, {
              key: "getAnnotations",
              value: function getAnnotations() {
                var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
                  _ref2$intent = _ref2.intent,
                  intent = _ref2$intent === void 0 ? null : _ref2$intent;

                if (!this.annotationsPromise || this.annotationsIntent !== intent) {
                  this.annotationsPromise = this._transport.getAnnotations(this.pageIndex, intent);
                  this.annotationsIntent = intent;
                }

                return this.annotationsPromise;
              }
            }, {
              key: "render",
              value: function render(_ref3) {
                var _this4 = this;

                var canvasContext = _ref3.canvasContext,
                  viewport = _ref3.viewport,
                  _ref3$intent = _ref3.intent,
                  intent = _ref3$intent === void 0 ? 'display' : _ref3$intent,
                  _ref3$enableWebGL = _ref3.enableWebGL,
                  enableWebGL = _ref3$enableWebGL === void 0 ? false : _ref3$enableWebGL,
                  _ref3$renderInteracti = _ref3.renderInteractiveForms,
                  renderInteractiveForms = _ref3$renderInteracti === void 0 ? false : _ref3$renderInteracti,
                  _ref3$transform = _ref3.transform,
                  transform = _ref3$transform === void 0 ? null : _ref3$transform,
                  _ref3$imageLayer = _ref3.imageLayer,
                  imageLayer = _ref3$imageLayer === void 0 ? null : _ref3$imageLayer,
                  _ref3$canvasFactory = _ref3.canvasFactory,
                  canvasFactory = _ref3$canvasFactory === void 0 ? null : _ref3$canvasFactory,
                  _ref3$background = _ref3.background,
                  background = _ref3$background === void 0 ? null : _ref3$background;
                var stats = this._stats;
                stats.time('Overall');
                this.pendingCleanup = false;
                var renderingIntent = intent === 'print' ? 'print' : 'display';
                var canvasFactoryInstance = canvasFactory || new _dom_utils.DOMCanvasFactory();
                var webGLContext = new _webgl.WebGLContext({
                  enable: enableWebGL
                });

                if (!this.intentStates[renderingIntent]) {
                  this.intentStates[renderingIntent] = Object.create(null);
                }

                var intentState = this.intentStates[renderingIntent];

                if (!intentState.displayReadyCapability) {
                  intentState.receivingOperatorList = true;
                  intentState.displayReadyCapability = (0, _util.createPromiseCapability)();
                  intentState.operatorList = {
                    fnArray: [],
                    argsArray: [],
                    lastChunk: false
                  };
                  stats.time('Page Request');

                  this._transport.messageHandler.send('RenderPageRequest', {
                    pageIndex: this.pageNumber - 1,
                    intent: renderingIntent,
                    renderInteractiveForms: renderInteractiveForms === true
                  });
                }

                var complete = function complete(error) {
                  var i = intentState.renderTasks.indexOf(internalRenderTask);

                  if (i >= 0) {
                    intentState.renderTasks.splice(i, 1);
                  }

                  if (_this4.cleanupAfterRender) {
                    _this4.pendingCleanup = true;
                  }

                  _this4._tryCleanup();

                  if (error) {
                    internalRenderTask.capability.reject(error);
                  } else {
                    internalRenderTask.capability.resolve();
                  }

                  stats.timeEnd('Rendering');
                  stats.timeEnd('Overall');
                };

                var internalRenderTask = new InternalRenderTask({
                  callback: complete,
                  params: {
                    canvasContext: canvasContext,
                    viewport: viewport,
                    transform: transform,
                    imageLayer: imageLayer,
                    background: background
                  },
                  objs: this.objs,
                  commonObjs: this.commonObjs,
                  operatorList: intentState.operatorList,
                  pageNumber: this.pageNumber,
                  canvasFactory: canvasFactoryInstance,
                  webGLContext: webGLContext,
                  useRequestAnimationFrame: renderingIntent !== 'print',
                  pdfBug: this._pdfBug
                });

                if (!intentState.renderTasks) {
                  intentState.renderTasks = [];
                }

                intentState.renderTasks.push(internalRenderTask);
                var renderTask = internalRenderTask.task;
                intentState.displayReadyCapability.promise.then(function (transparency) {
                  if (_this4.pendingCleanup) {
                    complete();
                    return;
                  }

                  stats.time('Rendering');
                  internalRenderTask.initializeGraphics(transparency);
                  internalRenderTask.operatorListChanged();
                }).catch(complete);
                return renderTask;
              }
            }, {
              key: "getOperatorList",
              value: function getOperatorList() {
                function operatorListChanged() {
                  if (intentState.operatorList.lastChunk) {
                    intentState.opListReadCapability.resolve(intentState.operatorList);
                    var i = intentState.renderTasks.indexOf(opListTask);

                    if (i >= 0) {
                      intentState.renderTasks.splice(i, 1);
                    }
                  }
                }

                var renderingIntent = 'oplist';

                if (!this.intentStates[renderingIntent]) {
                  this.intentStates[renderingIntent] = Object.create(null);
                }

                var intentState = this.intentStates[renderingIntent];
                var opListTask;

                if (!intentState.opListReadCapability) {
                  opListTask = {};
                  opListTask.operatorListChanged = operatorListChanged;
                  intentState.receivingOperatorList = true;
                  intentState.opListReadCapability = (0, _util.createPromiseCapability)();
                  intentState.renderTasks = [];
                  intentState.renderTasks.push(opListTask);
                  intentState.operatorList = {
                    fnArray: [],
                    argsArray: [],
                    lastChunk: false
                  };

                  this._stats.time('Page Request');

                  this._transport.messageHandler.send('RenderPageRequest', {
                    pageIndex: this.pageIndex,
                    intent: renderingIntent
                  });
                }

                return intentState.opListReadCapability.promise;
              }
            }, {
              key: "streamTextContent",
              value: function streamTextContent() {
                var _ref4 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
                  _ref4$normalizeWhites = _ref4.normalizeWhitespace,
                  normalizeWhitespace = _ref4$normalizeWhites === void 0 ? false : _ref4$normalizeWhites,
                  _ref4$disableCombineT = _ref4.disableCombineTextItems,
                  disableCombineTextItems = _ref4$disableCombineT === void 0 ? false : _ref4$disableCombineT;

                var TEXT_CONTENT_CHUNK_SIZE = 100;
                return this._transport.messageHandler.sendWithStream('GetTextContent', {
                  pageIndex: this.pageNumber - 1,
                  normalizeWhitespace: normalizeWhitespace === true,
                  combineTextItems: disableCombineTextItems !== true
                }, {
                  highWaterMark: TEXT_CONTENT_CHUNK_SIZE,
                  size: function size(textContent) {
                    return textContent.items.length;
                  }
                });
              }
            }, {
              key: "getTextContent",
              value: function getTextContent() {
                var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
                var readableStream = this.streamTextContent(params);
                return new Promise(function (resolve, reject) {
                  function pump() {
                    reader.read().then(function (_ref5) {
                      var _textContent$items;

                      var value = _ref5.value,
                        done = _ref5.done;

                      if (done) {
                        resolve(textContent);
                        return;
                      }

                      Object.assign(textContent.styles, value.styles);

                      (_textContent$items = textContent.items).push.apply(_textContent$items, _toConsumableArray(value.items));

                      pump();
                    }, reject);
                  }

                  var reader = readableStream.getReader();
                  var textContent = {
                    items: [],
                    styles: Object.create(null)
                  };
                  pump();
                });
              }
            }, {
              key: "_destroy",
              value: function _destroy() {
                this.destroyed = true;
                this._transport.pageCache[this.pageIndex] = null;
                var waitOn = [];
                Object.keys(this.intentStates).forEach(function (intent) {
                  if (intent === 'oplist') {
                    return;
                  }

                  var intentState = this.intentStates[intent];
                  intentState.renderTasks.forEach(function (renderTask) {
                    var renderCompleted = renderTask.capability.promise.catch(function () {
                    });
                    waitOn.push(renderCompleted);
                    renderTask.cancel();
                  });
                }, this);
                this.objs.clear();
                this.annotationsPromise = null;
                this.pendingCleanup = false;
                return Promise.all(waitOn);
              }
            }, {
              key: "cleanup",
              value: function cleanup() {
                var resetStats = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
                this.pendingCleanup = true;

                this._tryCleanup(resetStats);
              }
            }, {
              key: "_tryCleanup",
              value: function _tryCleanup() {
                var resetStats = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

                if (!this.pendingCleanup || Object.keys(this.intentStates).some(function (intent) {
                  var intentState = this.intentStates[intent];
                  return intentState.renderTasks.length !== 0 || intentState.receivingOperatorList;
                }, this)) {
                  return;
                }

                Object.keys(this.intentStates).forEach(function (intent) {
                  delete this.intentStates[intent];
                }, this);
                this.objs.clear();
                this.annotationsPromise = null;

                if (resetStats && this._stats instanceof _dom_utils.StatTimer) {
                  this._stats = new _dom_utils.StatTimer();
                }

                this.pendingCleanup = false;
              }
            }, {
              key: "_startRenderPage",
              value: function _startRenderPage(transparency, intent) {
                var intentState = this.intentStates[intent];

                if (intentState.displayReadyCapability) {
                  intentState.displayReadyCapability.resolve(transparency);
                }
              }
            }, {
              key: "_renderPageChunk",
              value: function _renderPageChunk(operatorListChunk, intent) {
                var intentState = this.intentStates[intent];

                for (var i = 0, ii = operatorListChunk.length; i < ii; i++) {
                  intentState.operatorList.fnArray.push(operatorListChunk.fnArray[i]);
                  intentState.operatorList.argsArray.push(operatorListChunk.argsArray[i]);
                }

                intentState.operatorList.lastChunk = operatorListChunk.lastChunk;

                for (var _i = 0; _i < intentState.renderTasks.length; _i++) {
                  intentState.renderTasks[_i].operatorListChanged();
                }

                if (operatorListChunk.lastChunk) {
                  intentState.receivingOperatorList = false;

                  this._tryCleanup();
                }
              }
            }, {
              key: "pageNumber",
              get: function get() {
                return this.pageIndex + 1;
              }
            }, {
              key: "rotate",
              get: function get() {
                return this._pageInfo.rotate;
              }
            }, {
              key: "ref",
              get: function get() {
                return this._pageInfo.ref;
              }
            }, {
              key: "userUnit",
              get: function get() {
                return this._pageInfo.userUnit;
              }
            }, {
              key: "view",
              get: function get() {
                return this._pageInfo.view;
              }
            }, {
              key: "stats",
              get: function get() {
                return this._stats instanceof _dom_utils.StatTimer ? this._stats : null;
              }
            }]);

            return PDFPageProxy;
          }();

        exports.PDFPageProxy = PDFPageProxy;

        var LoopbackPort =
          /*#__PURE__*/
          function () {
            function LoopbackPort() {
              var defer = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;

              _classCallCheck(this, LoopbackPort);

              this._listeners = [];
              this._defer = defer;
              this._deferred = Promise.resolve(undefined);
            }

            _createClass(LoopbackPort, [{
              key: "postMessage",
              value: function postMessage(obj, transfers) {
                var _this5 = this;

                function cloneValue(value) {
                  if (_typeof(value) !== 'object' || value === null) {
                    return value;
                  }

                  if (cloned.has(value)) {
                    return cloned.get(value);
                  }

                  var buffer, result;

                  if ((buffer = value.buffer) && (0, _util.isArrayBuffer)(buffer)) {
                    var transferable = transfers && transfers.includes(buffer);

                    if (value === buffer) {
                      result = value;
                    } else if (transferable) {
                      result = new value.constructor(buffer, value.byteOffset, value.byteLength);
                    } else {
                      result = new value.constructor(value);
                    }

                    cloned.set(value, result);
                    return result;
                  }

                  result = Array.isArray(value) ? [] : {};
                  cloned.set(value, result);

                  for (var i in value) {
                    var desc = void 0,
                      p = value;

                    while (!(desc = Object.getOwnPropertyDescriptor(p, i))) {
                      p = Object.getPrototypeOf(p);
                    }

                    if (typeof desc.value === 'undefined' || typeof desc.value === 'function') {
                      continue;
                    }

                    result[i] = cloneValue(desc.value);
                  }

                  return result;
                }

                if (!this._defer) {
                  this._listeners.forEach(function (listener) {
                    listener.call(this, {
                      data: obj
                    });
                  }, this);

                  return;
                }

                var cloned = new WeakMap();
                var e = {
                  data: cloneValue(obj)
                };

                this._deferred.then(function () {
                  _this5._listeners.forEach(function (listener) {
                    listener.call(this, e);
                  }, _this5);
                });
              }
            }, {
              key: "addEventListener",
              value: function addEventListener(name, listener) {
                this._listeners.push(listener);
              }
            }, {
              key: "removeEventListener",
              value: function removeEventListener(name, listener) {
                var i = this._listeners.indexOf(listener);

                this._listeners.splice(i, 1);
              }
            }, {
              key: "terminate",
              value: function terminate() {
                this._listeners = [];
              }
            }]);

            return LoopbackPort;
          }();

        exports.LoopbackPort = LoopbackPort;

        var PDFWorker = function PDFWorkerClosure() {
          var pdfWorkerPorts = new WeakMap();
          var nextFakeWorkerId = 0;
          var fakeWorkerFilesLoadedCapability;

          function _getWorkerSrc() {
            if (_worker_options.GlobalWorkerOptions.workerSrc) {
              return _worker_options.GlobalWorkerOptions.workerSrc;
            }

            if (typeof fallbackWorkerSrc !== 'undefined') {
              return fallbackWorkerSrc;
            }

            throw new Error('No "GlobalWorkerOptions.workerSrc" specified.');
          }

          function getMainThreadWorkerMessageHandler() {
            try {
              if (typeof window !== 'undefined') {
                return window.pdfjsWorker && window.pdfjsWorker.WorkerMessageHandler;
              }
            } catch (ex) {
            }

            return null;
          }

          function setupFakeWorkerGlobal() {
            if (fakeWorkerFilesLoadedCapability) {
              return fakeWorkerFilesLoadedCapability.promise;
            }

            fakeWorkerFilesLoadedCapability = (0, _util.createPromiseCapability)();
            var mainWorkerMessageHandler = getMainThreadWorkerMessageHandler();

            if (mainWorkerMessageHandler) {
              fakeWorkerFilesLoadedCapability.resolve(mainWorkerMessageHandler);
              return fakeWorkerFilesLoadedCapability.promise;
            }

            var loader = fakeWorkerFilesLoader || function () {
              return (0, _dom_utils.loadScript)(_getWorkerSrc()).then(function () {
                return window.pdfjsWorker.WorkerMessageHandler;
              });
            };

            loader().then(fakeWorkerFilesLoadedCapability.resolve, fakeWorkerFilesLoadedCapability.reject);
            return fakeWorkerFilesLoadedCapability.promise;
          }

          function createCDNWrapper(url) {
            var wrapper = 'importScripts(\'' + url + '\');';
            return _util.URL.createObjectURL(new Blob([wrapper]));
          }

          var PDFWorker =
            /*#__PURE__*/
            function () {
              function PDFWorker() {
                var _ref6 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
                  _ref6$name = _ref6.name,
                  name = _ref6$name === void 0 ? null : _ref6$name,
                  _ref6$port = _ref6.port,
                  port = _ref6$port === void 0 ? null : _ref6$port,
                  _ref6$postMessageTran = _ref6.postMessageTransfers,
                  postMessageTransfers = _ref6$postMessageTran === void 0 ? true : _ref6$postMessageTran,
                  _ref6$verbosity = _ref6.verbosity,
                  verbosity = _ref6$verbosity === void 0 ? (0, _util.getVerbosityLevel)() : _ref6$verbosity;

                _classCallCheck(this, PDFWorker);

                if (port && pdfWorkerPorts.has(port)) {
                  throw new Error('Cannot use more than one PDFWorker per port');
                }

                this.name = name;
                this.destroyed = false;
                this.postMessageTransfers = postMessageTransfers !== false;
                this.verbosity = verbosity;
                this._readyCapability = (0, _util.createPromiseCapability)();
                this._port = null;
                this._webWorker = null;
                this._messageHandler = null;

                if (port) {
                  pdfWorkerPorts.set(port, this);

                  this._initializeFromPort(port);

                  return;
                }

                this._initialize();
              }

              _createClass(PDFWorker, [{
                key: "_initializeFromPort",
                value: function _initializeFromPort(port) {
                  this._port = port;
                  this._messageHandler = new _message_handler.MessageHandler('main', 'worker', port);

                  this._messageHandler.on('ready', function () {
                  });

                  this._readyCapability.resolve();
                }
              }, {
                key: "_initialize",
                value: function _initialize() {
                  var _this6 = this;

                  if (typeof Worker !== 'undefined' && !isWorkerDisabled && !getMainThreadWorkerMessageHandler()) {
                    var workerSrc = _getWorkerSrc();

                    try {
                      if (!(0, _util.isSameOrigin)(window.location.href, workerSrc)) {
                        workerSrc = createCDNWrapper(new _util.URL(workerSrc, window.location).href);
                      }

                      var worker = new Worker(workerSrc);
                      var messageHandler = new _message_handler.MessageHandler('main', 'worker', worker);

                      var terminateEarly = function terminateEarly() {
                        worker.removeEventListener('error', onWorkerError);
                        messageHandler.destroy();
                        worker.terminate();

                        if (_this6.destroyed) {
                          _this6._readyCapability.reject(new Error('Worker was destroyed'));
                        } else {
                          _this6._setupFakeWorker();
                        }
                      };

                      var onWorkerError = function onWorkerError() {
                        if (!_this6._webWorker) {
                          terminateEarly();
                        }
                      };

                      worker.addEventListener('error', onWorkerError);
                      messageHandler.on('test', function (data) {
                        worker.removeEventListener('error', onWorkerError);

                        if (_this6.destroyed) {
                          terminateEarly();
                          return;
                        }

                        if (data && data.supportTypedArray) {
                          _this6._messageHandler = messageHandler;
                          _this6._port = worker;
                          _this6._webWorker = worker;

                          if (!data.supportTransfers) {
                            _this6.postMessageTransfers = false;
                          }

                          _this6._readyCapability.resolve();

                          messageHandler.send('configure', {
                            verbosity: _this6.verbosity
                          });
                        } else {
                          _this6._setupFakeWorker();

                          messageHandler.destroy();
                          worker.terminate();
                        }
                      });
                      messageHandler.on('ready', function (data) {
                        worker.removeEventListener('error', onWorkerError);

                        if (_this6.destroyed) {
                          terminateEarly();
                          return;
                        }

                        try {
                          sendTest();
                        } catch (e) {
                          _this6._setupFakeWorker();
                        }
                      });

                      var sendTest = function sendTest() {
                        var testObj = new Uint8Array([_this6.postMessageTransfers ? 255 : 0]);

                        try {
                          messageHandler.send('test', testObj, [testObj.buffer]);
                        } catch (ex) {
                          (0, _util.info)('Cannot use postMessage transfers');
                          testObj[0] = 0;
                          messageHandler.send('test', testObj);
                        }
                      };

                      sendTest();
                      return;
                    } catch (e) {
                      (0, _util.info)('The worker has been disabled.');
                    }
                  }

                  this._setupFakeWorker();
                }
              }, {
                key: "_setupFakeWorker",
                value: function _setupFakeWorker() {
                  var _this7 = this;

                  if (!isWorkerDisabled) {
                    (0, _util.warn)('Setting up fake worker.');
                    isWorkerDisabled = true;
                  }

                  setupFakeWorkerGlobal().then(function (WorkerMessageHandler) {
                    if (_this7.destroyed) {
                      _this7._readyCapability.reject(new Error('Worker was destroyed'));

                      return;
                    }

                    var port = new LoopbackPort();
                    _this7._port = port;
                    var id = 'fake' + nextFakeWorkerId++;
                    var workerHandler = new _message_handler.MessageHandler(id + '_worker', id, port);
                    WorkerMessageHandler.setup(workerHandler, port);
                    var messageHandler = new _message_handler.MessageHandler(id, id + '_worker', port);
                    _this7._messageHandler = messageHandler;

                    _this7._readyCapability.resolve();
                  }).catch(function (reason) {
                    _this7._readyCapability.reject(new Error("Setting up fake worker failed: \"".concat(reason.message, "\".")));
                  });
                }
              }, {
                key: "destroy",
                value: function destroy() {
                  this.destroyed = true;

                  if (this._webWorker) {
                    this._webWorker.terminate();

                    this._webWorker = null;
                  }

                  pdfWorkerPorts.delete(this._port);
                  this._port = null;

                  if (this._messageHandler) {
                    this._messageHandler.destroy();

                    this._messageHandler = null;
                  }
                }
              }, {
                key: "promise",
                get: function get() {
                  return this._readyCapability.promise;
                }
              }, {
                key: "port",
                get: function get() {
                  return this._port;
                }
              }, {
                key: "messageHandler",
                get: function get() {
                  return this._messageHandler;
                }
              }], [{
                key: "fromPort",
                value: function fromPort(params) {
                  if (!params || !params.port) {
                    throw new Error('PDFWorker.fromPort - invalid method signature.');
                  }

                  if (pdfWorkerPorts.has(params.port)) {
                    return pdfWorkerPorts.get(params.port);
                  }

                  return new PDFWorker(params);
                }
              }, {
                key: "getWorkerSrc",
                value: function getWorkerSrc() {
                  return _getWorkerSrc();
                }
              }]);

              return PDFWorker;
            }();

          return PDFWorker;
        }();

        exports.PDFWorker = PDFWorker;

        var WorkerTransport =
          /*#__PURE__*/
          function () {
            function WorkerTransport(messageHandler, loadingTask, networkStream, params) {
              _classCallCheck(this, WorkerTransport);

              this.messageHandler = messageHandler;
              this.loadingTask = loadingTask;
              this.commonObjs = new PDFObjects();
              this.fontLoader = new _font_loader.FontLoader({
                docId: loadingTask.docId,
                onUnsupportedFeature: this._onUnsupportedFeature.bind(this)
              });
              this._params = params;
              this.CMapReaderFactory = new params.CMapReaderFactory({
                baseUrl: params.cMapUrl,
                isCompressed: params.cMapPacked
              });
              this.destroyed = false;
              this.destroyCapability = null;
              this._passwordCapability = null;
              this._networkStream = networkStream;
              this._fullReader = null;
              this._lastProgress = null;
              this.pageCache = [];
              this.pagePromises = [];
              this.downloadInfoCapability = (0, _util.createPromiseCapability)();
              this.setupMessageHandler();
            }

            _createClass(WorkerTransport, [{
              key: "destroy",
              value: function destroy() {
                var _this8 = this;

                if (this.destroyCapability) {
                  return this.destroyCapability.promise;
                }

                this.destroyed = true;
                this.destroyCapability = (0, _util.createPromiseCapability)();

                if (this._passwordCapability) {
                  this._passwordCapability.reject(new Error('Worker was destroyed during onPassword callback'));
                }

                var waitOn = [];
                this.pageCache.forEach(function (page) {
                  if (page) {
                    waitOn.push(page._destroy());
                  }
                });
                this.pageCache = [];
                this.pagePromises = [];
                var terminated = this.messageHandler.sendWithPromise('Terminate', null);
                waitOn.push(terminated);
                Promise.all(waitOn).then(function () {
                  _this8.fontLoader.clear();

                  if (_this8._networkStream) {
                    _this8._networkStream.cancelAllRequests();
                  }

                  if (_this8.messageHandler) {
                    _this8.messageHandler.destroy();

                    _this8.messageHandler = null;
                  }

                  _this8.destroyCapability.resolve();
                }, this.destroyCapability.reject);
                return this.destroyCapability.promise;
              }
            }, {
              key: "setupMessageHandler",
              value: function setupMessageHandler() {
                var messageHandler = this.messageHandler,
                  loadingTask = this.loadingTask;
                messageHandler.on('GetReader', function (data, sink) {
                  var _this9 = this;

                  (0, _util.assert)(this._networkStream);
                  this._fullReader = this._networkStream.getFullReader();

                  this._fullReader.onProgress = function (evt) {
                    _this9._lastProgress = {
                      loaded: evt.loaded,
                      total: evt.total
                    };
                  };

                  sink.onPull = function () {
                    _this9._fullReader.read().then(function (_ref7) {
                      var value = _ref7.value,
                        done = _ref7.done;

                      if (done) {
                        sink.close();
                        return;
                      }

                      (0, _util.assert)((0, _util.isArrayBuffer)(value));
                      sink.enqueue(new Uint8Array(value), 1, [value]);
                    }).catch(function (reason) {
                      sink.error(reason);
                    });
                  };

                  sink.onCancel = function (reason) {
                    _this9._fullReader.cancel(reason);
                  };
                }, this);
                messageHandler.on('ReaderHeadersReady', function (data) {
                  var _this10 = this;

                  var headersCapability = (0, _util.createPromiseCapability)();
                  var fullReader = this._fullReader;
                  fullReader.headersReady.then(function () {
                    if (!fullReader.isStreamingSupported || !fullReader.isRangeSupported) {
                      if (_this10._lastProgress && loadingTask.onProgress) {
                        loadingTask.onProgress(_this10._lastProgress);
                      }

                      fullReader.onProgress = function (evt) {
                        if (loadingTask.onProgress) {
                          loadingTask.onProgress({
                            loaded: evt.loaded,
                            total: evt.total
                          });
                        }
                      };
                    }

                    headersCapability.resolve({
                      isStreamingSupported: fullReader.isStreamingSupported,
                      isRangeSupported: fullReader.isRangeSupported,
                      contentLength: fullReader.contentLength
                    });
                  }, headersCapability.reject);
                  return headersCapability.promise;
                }, this);
                messageHandler.on('GetRangeReader', function (data, sink) {
                  (0, _util.assert)(this._networkStream);

                  var rangeReader = this._networkStream.getRangeReader(data.begin, data.end);

                  sink.onPull = function () {
                    rangeReader.read().then(function (_ref8) {
                      var value = _ref8.value,
                        done = _ref8.done;

                      if (done) {
                        sink.close();
                        return;
                      }

                      (0, _util.assert)((0, _util.isArrayBuffer)(value));
                      sink.enqueue(new Uint8Array(value), 1, [value]);
                    }).catch(function (reason) {
                      sink.error(reason);
                    });
                  };

                  sink.onCancel = function (reason) {
                    rangeReader.cancel(reason);
                  };
                }, this);
                messageHandler.on('GetDoc', function (_ref9) {
                  var pdfInfo = _ref9.pdfInfo;
                  this.numPages = pdfInfo.numPages;
                  this.pdfDocument = new PDFDocumentProxy(pdfInfo, this, loadingTask);

                  loadingTask._capability.resolve(this.pdfDocument);
                }, this);
                messageHandler.on('PasswordRequest', function (exception) {
                  var _this11 = this;

                  this._passwordCapability = (0, _util.createPromiseCapability)();

                  if (loadingTask.onPassword) {
                    var updatePassword = function updatePassword(password) {
                      _this11._passwordCapability.resolve({
                        password: password
                      });
                    };

                    try {
                      loadingTask.onPassword(updatePassword, exception.code);
                    } catch (ex) {
                      this._passwordCapability.reject(ex);
                    }
                  } else {
                    this._passwordCapability.reject(new _util.PasswordException(exception.message, exception.code));
                  }

                  return this._passwordCapability.promise;
                }, this);
                messageHandler.on('PasswordException', function (exception) {
                  loadingTask._capability.reject(new _util.PasswordException(exception.message, exception.code));
                }, this);
                messageHandler.on('InvalidPDF', function (exception) {
                  loadingTask._capability.reject(new _util.InvalidPDFException(exception.message));
                }, this);
                messageHandler.on('MissingPDF', function (exception) {
                  loadingTask._capability.reject(new _util.MissingPDFException(exception.message));
                }, this);
                messageHandler.on('UnexpectedResponse', function (exception) {
                  loadingTask._capability.reject(new _util.UnexpectedResponseException(exception.message, exception.status));
                }, this);
                messageHandler.on('UnknownError', function (exception) {
                  loadingTask._capability.reject(new _util.UnknownErrorException(exception.message, exception.details));
                }, this);
                messageHandler.on('DataLoaded', function (data) {
                  if (loadingTask.onProgress) {
                    loadingTask.onProgress({
                      loaded: data.length,
                      total: data.length
                    });
                  }

                  this.downloadInfoCapability.resolve(data);
                }, this);
                messageHandler.on('StartRenderPage', function (data) {
                  if (this.destroyed) {
                    return;
                  }

                  var page = this.pageCache[data.pageIndex];

                  page._stats.timeEnd('Page Request');

                  page._startRenderPage(data.transparency, data.intent);
                }, this);
                messageHandler.on('RenderPageChunk', function (data) {
                  if (this.destroyed) {
                    return;
                  }

                  var page = this.pageCache[data.pageIndex];

                  page._renderPageChunk(data.operatorList, data.intent);
                }, this);
                messageHandler.on('commonobj', function (data) {
                  var _this12 = this;

                  if (this.destroyed) {
                    return;
                  }

                  var _data = _slicedToArray(data, 3),
                    id = _data[0],
                    type = _data[1],
                    exportedData = _data[2];

                  if (this.commonObjs.has(id)) {
                    return;
                  }

                  switch (type) {
                    case 'Font':
                      var params = this._params;

                      if ('error' in exportedData) {
                        var exportedError = exportedData.error;
                        (0, _util.warn)("Error during font loading: ".concat(exportedError));
                        this.commonObjs.resolve(id, exportedError);
                        break;
                      }

                      var fontRegistry = null;

                      if (params.pdfBug && _global_scope.default.FontInspector && _global_scope.default.FontInspector.enabled) {
                        fontRegistry = {
                          registerFont: function registerFont(font, url) {
                            _global_scope.default['FontInspector'].fontAdded(font, url);
                          }
                        };
                      }

                      var font = new _font_loader.FontFaceObject(exportedData, {
                        isEvalSupported: params.isEvalSupported,
                        disableFontFace: params.disableFontFace,
                        ignoreErrors: params.ignoreErrors,
                        onUnsupportedFeature: this._onUnsupportedFeature.bind(this),
                        fontRegistry: fontRegistry
                      });
                      this.fontLoader.bind(font).then(function () {
                        _this12.commonObjs.resolve(id, font);
                      }, function (reason) {
                        messageHandler.sendWithPromise('FontFallback', {
                          id: id
                        }).finally(function () {
                          _this12.commonObjs.resolve(id, font);
                        });
                      });
                      break;

                    case 'FontPath':
                      this.commonObjs.resolve(id, exportedData);
                      break;

                    default:
                      throw new Error("Got unknown common object type ".concat(type));
                  }
                }, this);
                messageHandler.on('obj', function (data) {
                  if (this.destroyed) {
                    return;
                  }

                  var _data2 = _slicedToArray(data, 4),
                    id = _data2[0],
                    pageIndex = _data2[1],
                    type = _data2[2],
                    imageData = _data2[3];

                  var pageProxy = this.pageCache[pageIndex];

                  if (pageProxy.objs.has(id)) {
                    return;
                  }

                  switch (type) {
                    case 'JpegStream':
                      return new Promise(function (resolve, reject) {
                        var img = new Image();

                        img.onload = function () {
                          resolve(img);
                        };

                        img.onerror = function () {
                          reject(new Error('Error during JPEG image loading'));
                        };

                        img.src = imageData;
                      }).then(function (img) {
                        pageProxy.objs.resolve(id, img);
                      });

                    case 'Image':
                      pageProxy.objs.resolve(id, imageData);
                      var MAX_IMAGE_SIZE_TO_STORE = 8000000;

                      if (imageData && 'data' in imageData && imageData.data.length > MAX_IMAGE_SIZE_TO_STORE) {
                        pageProxy.cleanupAfterRender = true;
                      }

                      break;

                    default:
                      throw new Error("Got unknown object type ".concat(type));
                  }
                }, this);
                messageHandler.on('DocProgress', function (data) {
                  if (this.destroyed) {
                    return;
                  }

                  if (loadingTask.onProgress) {
                    loadingTask.onProgress({
                      loaded: data.loaded,
                      total: data.total
                    });
                  }
                }, this);
                messageHandler.on('PageError', function (data) {
                  if (this.destroyed) {
                    return;
                  }

                  var page = this.pageCache[data.pageNum - 1];
                  var intentState = page.intentStates[data.intent];

                  if (intentState.displayReadyCapability) {
                    intentState.displayReadyCapability.reject(data.error);
                  } else {
                    throw new Error(data.error);
                  }

                  if (intentState.operatorList) {
                    intentState.operatorList.lastChunk = true;

                    for (var i = 0; i < intentState.renderTasks.length; i++) {
                      intentState.renderTasks[i].operatorListChanged();
                    }
                  }
                }, this);
                messageHandler.on('UnsupportedFeature', this._onUnsupportedFeature, this);
                messageHandler.on('JpegDecode', function (data) {
                  if (this.destroyed) {
                    return Promise.reject(new Error('Worker was destroyed'));
                  }

                  if (typeof document === 'undefined') {
                    return Promise.reject(new Error('"document" is not defined.'));
                  }

                  var _data3 = _slicedToArray(data, 2),
                    imageUrl = _data3[0],
                    components = _data3[1];

                  if (components !== 3 && components !== 1) {
                    return Promise.reject(new Error('Only 3 components or 1 component can be returned'));
                  }

                  return new Promise(function (resolve, reject) {
                    var img = new Image();

                    img.onload = function () {
                      var width = img.width;
                      var height = img.height;
                      var size = width * height;
                      var rgbaLength = size * 4;
                      var buf = new Uint8ClampedArray(size * components);
                      var tmpCanvas = document.createElement('canvas');
                      tmpCanvas.width = width;
                      tmpCanvas.height = height;
                      var tmpCtx = tmpCanvas.getContext('2d');
                      tmpCtx.drawImage(img, 0, 0);
                      var data = tmpCtx.getImageData(0, 0, width, height).data;

                      if (components === 3) {
                        for (var i = 0, j = 0; i < rgbaLength; i += 4, j += 3) {
                          buf[j] = data[i];
                          buf[j + 1] = data[i + 1];
                          buf[j + 2] = data[i + 2];
                        }
                      } else if (components === 1) {
                        for (var _i2 = 0, _j = 0; _i2 < rgbaLength; _i2 += 4, _j++) {
                          buf[_j] = data[_i2];
                        }
                      }

                      resolve({
                        data: buf,
                        width: width,
                        height: height
                      });
                    };

                    img.onerror = function () {
                      reject(new Error('JpegDecode failed to load image'));
                    };

                    img.src = imageUrl;
                  });
                }, this);
                messageHandler.on('FetchBuiltInCMap', function (data) {
                  if (this.destroyed) {
                    return Promise.reject(new Error('Worker was destroyed'));
                  }

                  return this.CMapReaderFactory.fetch({
                    name: data.name
                  });
                }, this);
              }
            }, {
              key: "_onUnsupportedFeature",
              value: function _onUnsupportedFeature(_ref10) {
                var featureId = _ref10.featureId;

                if (this.destroyed) {
                  return;
                }

                if (this.loadingTask.onUnsupportedFeature) {
                  this.loadingTask.onUnsupportedFeature(featureId);
                }
              }
            }, {
              key: "getData",
              value: function getData() {
                return this.messageHandler.sendWithPromise('GetData', null);
              }
            }, {
              key: "getPage",
              value: function getPage(pageNumber) {
                var _this13 = this;

                if (!Number.isInteger(pageNumber) || pageNumber <= 0 || pageNumber > this.numPages) {
                  return Promise.reject(new Error('Invalid page request'));
                }

                var pageIndex = pageNumber - 1;

                if (pageIndex in this.pagePromises) {
                  return this.pagePromises[pageIndex];
                }

                var promise = this.messageHandler.sendWithPromise('GetPage', {
                  pageIndex: pageIndex
                }).then(function (pageInfo) {
                  if (_this13.destroyed) {
                    throw new Error('Transport destroyed');
                  }

                  var page = new PDFPageProxy(pageIndex, pageInfo, _this13, _this13._params.pdfBug);
                  _this13.pageCache[pageIndex] = page;
                  return page;
                });
                this.pagePromises[pageIndex] = promise;
                return promise;
              }
            }, {
              key: "getPageIndex",
              value: function getPageIndex(ref) {
                return this.messageHandler.sendWithPromise('GetPageIndex', {
                  ref: ref
                }).catch(function (reason) {
                  return Promise.reject(new Error(reason));
                });
              }
            }, {
              key: "getAnnotations",
              value: function getAnnotations(pageIndex, intent) {
                return this.messageHandler.sendWithPromise('GetAnnotations', {
                  pageIndex: pageIndex,
                  intent: intent
                });
              }
            }, {
              key: "getDestinations",
              value: function getDestinations() {
                return this.messageHandler.sendWithPromise('GetDestinations', null);
              }
            }, {
              key: "getDestination",
              value: function getDestination(id) {
                if (typeof id !== 'string') {
                  return Promise.reject(new Error('Invalid destination request.'));
                }

                return this.messageHandler.sendWithPromise('GetDestination', {
                  id: id
                });
              }
            }, {
              key: "getPageLabels",
              value: function getPageLabels() {
                return this.messageHandler.sendWithPromise('GetPageLabels', null);
              }
            }, {
              key: "getPageMode",
              value: function getPageMode() {
                return this.messageHandler.sendWithPromise('GetPageMode', null);
              }
            }, {
              key: "getOpenActionDestination",
              value: function getOpenActionDestination() {
                return this.messageHandler.sendWithPromise('getOpenActionDestination', null);
              }
            }, {
              key: "getAttachments",
              value: function getAttachments() {
                return this.messageHandler.sendWithPromise('GetAttachments', null);
              }
            }, {
              key: "getJavaScript",
              value: function getJavaScript() {
                return this.messageHandler.sendWithPromise('GetJavaScript', null);
              }
            }, {
              key: "getOutline",
              value: function getOutline() {
                return this.messageHandler.sendWithPromise('GetOutline', null);
              }
            }, {
              key: "getPermissions",
              value: function getPermissions() {
                return this.messageHandler.sendWithPromise('GetPermissions', null);
              }
            }, {
              key: "getMetadata",
              value: function getMetadata() {
                var _this14 = this;

                return this.messageHandler.sendWithPromise('GetMetadata', null).then(function (results) {
                  return {
                    info: results[0],
                    metadata: results[1] ? new _metadata.Metadata(results[1]) : null,
                    contentDispositionFilename: _this14._fullReader ? _this14._fullReader.filename : null
                  };
                });
              }
            }, {
              key: "getStats",
              value: function getStats() {
                return this.messageHandler.sendWithPromise('GetStats', null);
              }
            }, {
              key: "startCleanup",
              value: function startCleanup() {
                var _this15 = this;

                this.messageHandler.sendWithPromise('Cleanup', null).then(function () {
                  for (var i = 0, ii = _this15.pageCache.length; i < ii; i++) {
                    var page = _this15.pageCache[i];

                    if (page) {
                      page.cleanup();
                    }
                  }

                  _this15.commonObjs.clear();

                  _this15.fontLoader.clear();
                });
              }
            }, {
              key: "loadingParams",
              get: function get() {
                var params = this._params;
                return (0, _util.shadow)(this, 'loadingParams', {
                  disableAutoFetch: params.disableAutoFetch,
                  disableCreateObjectURL: params.disableCreateObjectURL,
                  disableFontFace: params.disableFontFace,
                  nativeImageDecoderSupport: params.nativeImageDecoderSupport
                });
              }
            }]);

            return WorkerTransport;
          }();

        var PDFObjects =
          /*#__PURE__*/
          function () {
            function PDFObjects() {
              _classCallCheck(this, PDFObjects);

              this._objs = Object.create(null);
            }

            _createClass(PDFObjects, [{
              key: "_ensureObj",
              value: function _ensureObj(objId) {
                if (this._objs[objId]) {
                  return this._objs[objId];
                }

                return this._objs[objId] = {
                  capability: (0, _util.createPromiseCapability)(),
                  data: null,
                  resolved: false
                };
              }
            }, {
              key: "get",
              value: function get(objId) {
                var callback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;

                if (callback) {
                  this._ensureObj(objId).capability.promise.then(callback);

                  return null;
                }

                var obj = this._objs[objId];

                if (!obj || !obj.resolved) {
                  throw new Error("Requesting object that isn't resolved yet ".concat(objId, "."));
                }

                return obj.data;
              }
            }, {
              key: "has",
              value: function has(objId) {
                var obj = this._objs[objId];
                return obj ? obj.resolved : false;
              }
            }, {
              key: "resolve",
              value: function resolve(objId, data) {
                var obj = this._ensureObj(objId);

                obj.resolved = true;
                obj.data = data;
                obj.capability.resolve(data);
              }
            }, {
              key: "clear",
              value: function clear() {
                this._objs = Object.create(null);
              }
            }]);

            return PDFObjects;
          }();

        var RenderTask =
          /*#__PURE__*/
          function () {
            function RenderTask(internalRenderTask) {
              _classCallCheck(this, RenderTask);

              this._internalRenderTask = internalRenderTask;
              this.onContinue = null;
            }

            _createClass(RenderTask, [{
              key: "cancel",
              value: function cancel() {
                this._internalRenderTask.cancel();
              }
            }, {
              key: "then",
              value: function then(onFulfilled, onRejected) {
                (0, _util.deprecated)('RenderTask.then method, use the `promise` getter instead.');
                return this.promise.then.apply(this.promise, arguments);
              }
            }, {
              key: "promise",
              get: function get() {
                return this._internalRenderTask.capability.promise;
              }
            }]);

            return RenderTask;
          }();

        var InternalRenderTask = function InternalRenderTaskClosure() {
          var canvasInRendering = new WeakSet();

          var InternalRenderTask =
            /*#__PURE__*/
            function () {
              function InternalRenderTask(_ref11) {
                var callback = _ref11.callback,
                  params = _ref11.params,
                  objs = _ref11.objs,
                  commonObjs = _ref11.commonObjs,
                  operatorList = _ref11.operatorList,
                  pageNumber = _ref11.pageNumber,
                  canvasFactory = _ref11.canvasFactory,
                  webGLContext = _ref11.webGLContext,
                  _ref11$useRequestAnim = _ref11.useRequestAnimationFrame,
                  useRequestAnimationFrame = _ref11$useRequestAnim === void 0 ? false : _ref11$useRequestAnim,
                  _ref11$pdfBug = _ref11.pdfBug,
                  pdfBug = _ref11$pdfBug === void 0 ? false : _ref11$pdfBug;

                _classCallCheck(this, InternalRenderTask);

                this.callback = callback;
                this.params = params;
                this.objs = objs;
                this.commonObjs = commonObjs;
                this.operatorListIdx = null;
                this.operatorList = operatorList;
                this.pageNumber = pageNumber;
                this.canvasFactory = canvasFactory;
                this.webGLContext = webGLContext;
                this._pdfBug = pdfBug;
                this.running = false;
                this.graphicsReadyCallback = null;
                this.graphicsReady = false;
                this._useRequestAnimationFrame = useRequestAnimationFrame === true && typeof window !== 'undefined';
                this.cancelled = false;
                this.capability = (0, _util.createPromiseCapability)();
                this.task = new RenderTask(this);
                this._continueBound = this._continue.bind(this);
                this._scheduleNextBound = this._scheduleNext.bind(this);
                this._nextBound = this._next.bind(this);
                this._canvas = params.canvasContext.canvas;
              }

              _createClass(InternalRenderTask, [{
                key: "initializeGraphics",
                value: function initializeGraphics() {
                  var transparency = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

                  if (this.cancelled) {
                    return;
                  }

                  if (this._canvas) {
                    if (canvasInRendering.has(this._canvas)) {
                      throw new Error('Cannot use the same canvas during multiple render() operations. ' + 'Use different canvas or ensure previous operations were ' + 'cancelled or completed.');
                    }

                    canvasInRendering.add(this._canvas);
                  }

                  if (this._pdfBug && _global_scope.default.StepperManager && _global_scope.default.StepperManager.enabled) {
                    this.stepper = _global_scope.default.StepperManager.create(this.pageNumber - 1);
                    this.stepper.init(this.operatorList);
                    this.stepper.nextBreakPoint = this.stepper.getNextBreakPoint();
                  }

                  var _this$params = this.params,
                    canvasContext = _this$params.canvasContext,
                    viewport = _this$params.viewport,
                    transform = _this$params.transform,
                    imageLayer = _this$params.imageLayer,
                    background = _this$params.background;
                  this.gfx = new _canvas.CanvasGraphics(canvasContext, this.commonObjs, this.objs, this.canvasFactory, this.webGLContext, imageLayer);
                  this.gfx.beginDrawing({
                    transform: transform,
                    viewport: viewport,
                    transparency: transparency,
                    background: background
                  });
                  this.operatorListIdx = 0;
                  this.graphicsReady = true;

                  if (this.graphicsReadyCallback) {
                    this.graphicsReadyCallback();
                  }
                }
              }, {
                key: "cancel",
                value: function cancel() {
                  var error = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
                  this.running = false;
                  this.cancelled = true;

                  if (this.gfx) {
                    this.gfx.endDrawing();
                  }

                  if (this._canvas) {
                    canvasInRendering.delete(this._canvas);
                  }

                  this.callback(error || new _dom_utils.RenderingCancelledException("Rendering cancelled, page ".concat(this.pageNumber), 'canvas'));
                }
              }, {
                key: "operatorListChanged",
                value: function operatorListChanged() {
                  if (!this.graphicsReady) {
                    if (!this.graphicsReadyCallback) {
                      this.graphicsReadyCallback = this._continueBound;
                    }

                    return;
                  }

                  if (this.stepper) {
                    this.stepper.updateOperatorList(this.operatorList);
                  }

                  if (this.running) {
                    return;
                  }

                  this._continue();
                }
              }, {
                key: "_continue",
                value: function _continue() {
                  this.running = true;

                  if (this.cancelled) {
                    return;
                  }

                  if (this.task.onContinue) {
                    this.task.onContinue(this._scheduleNextBound);
                  } else {
                    this._scheduleNext();
                  }
                }
              }, {
                key: "_scheduleNext",
                value: function _scheduleNext() {
                  var _this16 = this;

                  if (this._useRequestAnimationFrame) {
                    window.requestAnimationFrame(function () {
                      _this16._nextBound().catch(_this16.cancel.bind(_this16));
                    });
                  } else {
                    Promise.resolve().then(this._nextBound).catch(this.cancel.bind(this));
                  }
                }
              }, {
                key: "_next",
                value: function () {
                  var _next2 = _asyncToGenerator(
                    /*#__PURE__*/
                    _regenerator.default.mark(function _callee() {
                      return _regenerator.default.wrap(function _callee$(_context) {
                        while (1) {
                          switch (_context.prev = _context.next) {
                            case 0:
                              if (!this.cancelled) {
                                _context.next = 2;
                                break;
                              }

                              return _context.abrupt("return");

                            case 2:
                              this.operatorListIdx = this.gfx.executeOperatorList(this.operatorList, this.operatorListIdx, this._continueBound, this.stepper);

                              if (this.operatorListIdx === this.operatorList.argsArray.length) {
                                this.running = false;

                                if (this.operatorList.lastChunk) {
                                  this.gfx.endDrawing();

                                  if (this._canvas) {
                                    canvasInRendering.delete(this._canvas);
                                  }

                                  this.callback();
                                }
                              }

                            case 4:
                            case "end":
                              return _context.stop();
                          }
                        }
                      }, _callee, this);
                    }));

                  function _next() {
                    return _next2.apply(this, arguments);
                  }

                  return _next;
                }()
              }]);

              return InternalRenderTask;
            }();

          return InternalRenderTask;
        }();

        var version = '2.1.266';
        exports.version = version;
        var build = '81f5835c';
        exports.build = build;

        /***/
      }),
      /* 147 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        module.exports = __w_pdfjs_require__(148);

        /***/
      }),
      /* 148 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        function _typeof(obj) {
          if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof = function _typeof(obj) {
              return typeof obj;
            };
          } else {
            _typeof = function _typeof(obj) {
              return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
          }
          return _typeof(obj);
        }

        var g = function () {
          return this || (typeof self === "undefined" ? "undefined" : _typeof(self)) === "object" && self;
        }() || Function("return this")();

        var hadRuntime = g.regeneratorRuntime && Object.getOwnPropertyNames(g).indexOf("regeneratorRuntime") >= 0;
        var oldRuntime = hadRuntime && g.regeneratorRuntime;
        g.regeneratorRuntime = undefined;
        module.exports = __w_pdfjs_require__(149);

        if (hadRuntime) {
          g.regeneratorRuntime = oldRuntime;
        } else {
          try {
            delete g.regeneratorRuntime;
          } catch (e) {
            g.regeneratorRuntime = undefined;
          }
        }

        /***/
      }),
      /* 149 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";
        /* WEBPACK VAR INJECTION */
        (function (module) {

          function _typeof(obj) {
            if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
              _typeof = function _typeof(obj) {
                return typeof obj;
              };
            } else {
              _typeof = function _typeof(obj) {
                return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
              };
            }
            return _typeof(obj);
          }

          !function (global) {
            "use strict";

            var Op = Object.prototype;
            var hasOwn = Op.hasOwnProperty;
            var undefined;
            var $Symbol = typeof Symbol === "function" ? Symbol : {};
            var iteratorSymbol = $Symbol.iterator || "@@iterator";
            var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
            var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";
            var inModule = (false ? undefined : _typeof(module)) === "object";
            var runtime = global.regeneratorRuntime;

            if (runtime) {
              if (inModule) {
                module.exports = runtime;
              }

              return;
            }

            runtime = global.regeneratorRuntime = inModule ? module.exports : {};

            function wrap(innerFn, outerFn, self, tryLocsList) {
              var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
              var generator = Object.create(protoGenerator.prototype);
              var context = new Context(tryLocsList || []);
              generator._invoke = makeInvokeMethod(innerFn, self, context);
              return generator;
            }

            runtime.wrap = wrap;

            function tryCatch(fn, obj, arg) {
              try {
                return {
                  type: "normal",
                  arg: fn.call(obj, arg)
                };
              } catch (err) {
                return {
                  type: "throw",
                  arg: err
                };
              }
            }

            var GenStateSuspendedStart = "suspendedStart";
            var GenStateSuspendedYield = "suspendedYield";
            var GenStateExecuting = "executing";
            var GenStateCompleted = "completed";
            var ContinueSentinel = {};

            function Generator() {
            }

            function GeneratorFunction() {
            }

            function GeneratorFunctionPrototype() {
            }

            var IteratorPrototype = {};

            IteratorPrototype[iteratorSymbol] = function () {
              return this;
            };

            var getProto = Object.getPrototypeOf;
            var NativeIteratorPrototype = getProto && getProto(getProto(values([])));

            if (NativeIteratorPrototype && NativeIteratorPrototype !== Op && hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
              IteratorPrototype = NativeIteratorPrototype;
            }

            var Gp = GeneratorFunctionPrototype.prototype = Generator.prototype = Object.create(IteratorPrototype);
            GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
            GeneratorFunctionPrototype.constructor = GeneratorFunction;
            GeneratorFunctionPrototype[toStringTagSymbol] = GeneratorFunction.displayName = "GeneratorFunction";

            function defineIteratorMethods(prototype) {
              ["next", "throw", "return"].forEach(function (method) {
                prototype[method] = function (arg) {
                  return this._invoke(method, arg);
                };
              });
            }

            runtime.isGeneratorFunction = function (genFun) {
              var ctor = typeof genFun === "function" && genFun.constructor;
              return ctor ? ctor === GeneratorFunction || (ctor.displayName || ctor.name) === "GeneratorFunction" : false;
            };

            runtime.mark = function (genFun) {
              if (Object.setPrototypeOf) {
                Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
              } else {
                genFun.__proto__ = GeneratorFunctionPrototype;

                if (!(toStringTagSymbol in genFun)) {
                  genFun[toStringTagSymbol] = "GeneratorFunction";
                }
              }

              genFun.prototype = Object.create(Gp);
              return genFun;
            };

            runtime.awrap = function (arg) {
              return {
                __await: arg
              };
            };

            function AsyncIterator(generator) {
              function invoke(method, arg, resolve, reject) {
                var record = tryCatch(generator[method], generator, arg);

                if (record.type === "throw") {
                  reject(record.arg);
                } else {
                  var result = record.arg;
                  var value = result.value;

                  if (value && _typeof(value) === "object" && hasOwn.call(value, "__await")) {
                    return Promise.resolve(value.__await).then(function (value) {
                      invoke("next", value, resolve, reject);
                    }, function (err) {
                      invoke("throw", err, resolve, reject);
                    });
                  }

                  return Promise.resolve(value).then(function (unwrapped) {
                    result.value = unwrapped;
                    resolve(result);
                  }, function (error) {
                    return invoke("throw", error, resolve, reject);
                  });
                }
              }

              var previousPromise;

              function enqueue(method, arg) {
                function callInvokeWithMethodAndArg() {
                  return new Promise(function (resolve, reject) {
                    invoke(method, arg, resolve, reject);
                  });
                }

                return previousPromise = previousPromise ? previousPromise.then(callInvokeWithMethodAndArg, callInvokeWithMethodAndArg) : callInvokeWithMethodAndArg();
              }

              this._invoke = enqueue;
            }

            defineIteratorMethods(AsyncIterator.prototype);

            AsyncIterator.prototype[asyncIteratorSymbol] = function () {
              return this;
            };

            runtime.AsyncIterator = AsyncIterator;

            runtime.async = function (innerFn, outerFn, self, tryLocsList) {
              var iter = new AsyncIterator(wrap(innerFn, outerFn, self, tryLocsList));
              return runtime.isGeneratorFunction(outerFn) ? iter : iter.next().then(function (result) {
                return result.done ? result.value : iter.next();
              });
            };

            function makeInvokeMethod(innerFn, self, context) {
              var state = GenStateSuspendedStart;
              return function invoke(method, arg) {
                if (state === GenStateExecuting) {
                  throw new Error("Generator is already running");
                }

                if (state === GenStateCompleted) {
                  if (method === "throw") {
                    throw arg;
                  }

                  return doneResult();
                }

                context.method = method;
                context.arg = arg;

                while (true) {
                  var delegate = context.delegate;

                  if (delegate) {
                    var delegateResult = maybeInvokeDelegate(delegate, context);

                    if (delegateResult) {
                      if (delegateResult === ContinueSentinel) continue;
                      return delegateResult;
                    }
                  }

                  if (context.method === "next") {
                    context.sent = context._sent = context.arg;
                  } else if (context.method === "throw") {
                    if (state === GenStateSuspendedStart) {
                      state = GenStateCompleted;
                      throw context.arg;
                    }

                    context.dispatchException(context.arg);
                  } else if (context.method === "return") {
                    context.abrupt("return", context.arg);
                  }

                  state = GenStateExecuting;
                  var record = tryCatch(innerFn, self, context);

                  if (record.type === "normal") {
                    state = context.done ? GenStateCompleted : GenStateSuspendedYield;

                    if (record.arg === ContinueSentinel) {
                      continue;
                    }

                    return {
                      value: record.arg,
                      done: context.done
                    };
                  } else if (record.type === "throw") {
                    state = GenStateCompleted;
                    context.method = "throw";
                    context.arg = record.arg;
                  }
                }
              };
            }

            function maybeInvokeDelegate(delegate, context) {
              var method = delegate.iterator[context.method];

              if (method === undefined) {
                context.delegate = null;

                if (context.method === "throw") {
                  if (delegate.iterator.return) {
                    context.method = "return";
                    context.arg = undefined;
                    maybeInvokeDelegate(delegate, context);

                    if (context.method === "throw") {
                      return ContinueSentinel;
                    }
                  }

                  context.method = "throw";
                  context.arg = new TypeError("The iterator does not provide a 'throw' method");
                }

                return ContinueSentinel;
              }

              var record = tryCatch(method, delegate.iterator, context.arg);

              if (record.type === "throw") {
                context.method = "throw";
                context.arg = record.arg;
                context.delegate = null;
                return ContinueSentinel;
              }

              var info = record.arg;

              if (!info) {
                context.method = "throw";
                context.arg = new TypeError("iterator result is not an object");
                context.delegate = null;
                return ContinueSentinel;
              }

              if (info.done) {
                context[delegate.resultName] = info.value;
                context.next = delegate.nextLoc;

                if (context.method !== "return") {
                  context.method = "next";
                  context.arg = undefined;
                }
              } else {
                return info;
              }

              context.delegate = null;
              return ContinueSentinel;
            }

            defineIteratorMethods(Gp);
            Gp[toStringTagSymbol] = "Generator";

            Gp[iteratorSymbol] = function () {
              return this;
            };

            Gp.toString = function () {
              return "[object Generator]";
            };

            function pushTryEntry(locs) {
              var entry = {
                tryLoc: locs[0]
              };

              if (1 in locs) {
                entry.catchLoc = locs[1];
              }

              if (2 in locs) {
                entry.finallyLoc = locs[2];
                entry.afterLoc = locs[3];
              }

              this.tryEntries.push(entry);
            }

            function resetTryEntry(entry) {
              var record = entry.completion || {};
              record.type = "normal";
              delete record.arg;
              entry.completion = record;
            }

            function Context(tryLocsList) {
              this.tryEntries = [{
                tryLoc: "root"
              }];
              tryLocsList.forEach(pushTryEntry, this);
              this.reset(true);
            }

            runtime.keys = function (object) {
              var keys = [];

              for (var key in object) {
                keys.push(key);
              }

              keys.reverse();
              return function next() {
                while (keys.length) {
                  var key = keys.pop();

                  if (key in object) {
                    next.value = key;
                    next.done = false;
                    return next;
                  }
                }

                next.done = true;
                return next;
              };
            };

            function values(iterable) {
              if (iterable) {
                var iteratorMethod = iterable[iteratorSymbol];

                if (iteratorMethod) {
                  return iteratorMethod.call(iterable);
                }

                if (typeof iterable.next === "function") {
                  return iterable;
                }

                if (!isNaN(iterable.length)) {
                  var i = -1,
                    next = function next() {
                      while (++i < iterable.length) {
                        if (hasOwn.call(iterable, i)) {
                          next.value = iterable[i];
                          next.done = false;
                          return next;
                        }
                      }

                      next.value = undefined;
                      next.done = true;
                      return next;
                    };

                  return next.next = next;
                }
              }

              return {
                next: doneResult
              };
            }

            runtime.values = values;

            function doneResult() {
              return {
                value: undefined,
                done: true
              };
            }

            Context.prototype = {
              constructor: Context,
              reset: function reset(skipTempReset) {
                this.prev = 0;
                this.next = 0;
                this.sent = this._sent = undefined;
                this.done = false;
                this.delegate = null;
                this.method = "next";
                this.arg = undefined;
                this.tryEntries.forEach(resetTryEntry);

                if (!skipTempReset) {
                  for (var name in this) {
                    if (name.charAt(0) === "t" && hasOwn.call(this, name) && !isNaN(+name.slice(1))) {
                      this[name] = undefined;
                    }
                  }
                }
              },
              stop: function stop() {
                this.done = true;
                var rootEntry = this.tryEntries[0];
                var rootRecord = rootEntry.completion;

                if (rootRecord.type === "throw") {
                  throw rootRecord.arg;
                }

                return this.rval;
              },
              dispatchException: function dispatchException(exception) {
                if (this.done) {
                  throw exception;
                }

                var context = this;

                function handle(loc, caught) {
                  record.type = "throw";
                  record.arg = exception;
                  context.next = loc;

                  if (caught) {
                    context.method = "next";
                    context.arg = undefined;
                  }

                  return !!caught;
                }

                for (var i = this.tryEntries.length - 1; i >= 0; --i) {
                  var entry = this.tryEntries[i];
                  var record = entry.completion;

                  if (entry.tryLoc === "root") {
                    return handle("end");
                  }

                  if (entry.tryLoc <= this.prev) {
                    var hasCatch = hasOwn.call(entry, "catchLoc");
                    var hasFinally = hasOwn.call(entry, "finallyLoc");

                    if (hasCatch && hasFinally) {
                      if (this.prev < entry.catchLoc) {
                        return handle(entry.catchLoc, true);
                      } else if (this.prev < entry.finallyLoc) {
                        return handle(entry.finallyLoc);
                      }
                    } else if (hasCatch) {
                      if (this.prev < entry.catchLoc) {
                        return handle(entry.catchLoc, true);
                      }
                    } else if (hasFinally) {
                      if (this.prev < entry.finallyLoc) {
                        return handle(entry.finallyLoc);
                      }
                    } else {
                      throw new Error("try statement without catch or finally");
                    }
                  }
                }
              },
              abrupt: function abrupt(type, arg) {
                for (var i = this.tryEntries.length - 1; i >= 0; --i) {
                  var entry = this.tryEntries[i];

                  if (entry.tryLoc <= this.prev && hasOwn.call(entry, "finallyLoc") && this.prev < entry.finallyLoc) {
                    var finallyEntry = entry;
                    break;
                  }
                }

                if (finallyEntry && (type === "break" || type === "continue") && finallyEntry.tryLoc <= arg && arg <= finallyEntry.finallyLoc) {
                  finallyEntry = null;
                }

                var record = finallyEntry ? finallyEntry.completion : {};
                record.type = type;
                record.arg = arg;

                if (finallyEntry) {
                  this.method = "next";
                  this.next = finallyEntry.finallyLoc;
                  return ContinueSentinel;
                }

                return this.complete(record);
              },
              complete: function complete(record, afterLoc) {
                if (record.type === "throw") {
                  throw record.arg;
                }

                if (record.type === "break" || record.type === "continue") {
                  this.next = record.arg;
                } else if (record.type === "return") {
                  this.rval = this.arg = record.arg;
                  this.method = "return";
                  this.next = "end";
                } else if (record.type === "normal" && afterLoc) {
                  this.next = afterLoc;
                }

                return ContinueSentinel;
              },
              finish: function finish(finallyLoc) {
                for (var i = this.tryEntries.length - 1; i >= 0; --i) {
                  var entry = this.tryEntries[i];

                  if (entry.finallyLoc === finallyLoc) {
                    this.complete(entry.completion, entry.afterLoc);
                    resetTryEntry(entry);
                    return ContinueSentinel;
                  }
                }
              },
              "catch": function _catch(tryLoc) {
                for (var i = this.tryEntries.length - 1; i >= 0; --i) {
                  var entry = this.tryEntries[i];

                  if (entry.tryLoc === tryLoc) {
                    var record = entry.completion;

                    if (record.type === "throw") {
                      var thrown = record.arg;
                      resetTryEntry(entry);
                    }

                    return thrown;
                  }
                }

                throw new Error("illegal catch attempt");
              },
              delegateYield: function delegateYield(iterable, resultName, nextLoc) {
                this.delegate = {
                  iterator: values(iterable),
                  resultName: resultName,
                  nextLoc: nextLoc
                };

                if (this.method === "next") {
                  this.arg = undefined;
                }

                return ContinueSentinel;
              }
            };
          }(function () {
            return this || (typeof self === "undefined" ? "undefined" : _typeof(self)) === "object" && self;
          }() || Function("return this")());
          /* WEBPACK VAR INJECTION */
        }.call(this, __w_pdfjs_require__(150)(module)))

        /***/
      }),
      /* 150 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        module.exports = function (module) {
          if (!module.webpackPolyfill) {
            module.deprecate = function () {
            };

            module.paths = [];
            if (!module.children) module.children = [];
            Object.defineProperty(module, "loaded", {
              enumerable: true,
              get: function get() {
                return module.l;
              }
            });
            Object.defineProperty(module, "id", {
              enumerable: true,
              get: function get() {
                return module.i;
              }
            });
            module.webpackPolyfill = 1;
          }

          return module;
        };

        /***/
      }),
      /* 151 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.addLinkAttributes = addLinkAttributes;
        exports.getFilenameFromUrl = getFilenameFromUrl;
        exports.loadScript = loadScript;
        exports.DummyStatTimer = exports.StatTimer = exports.DOMSVGFactory = exports.DOMCMapReaderFactory = exports.DOMCanvasFactory = exports.DEFAULT_LINK_REL = exports.LinkTarget = exports.RenderingCancelledException = exports.PageViewport = void 0;

        var _util = __w_pdfjs_require__(1);

        function _classCallCheck(instance, Constructor) {
          if (!(instance instanceof Constructor)) {
            throw new TypeError("Cannot call a class as a function");
          }
        }

        function _defineProperties(target, props) {
          for (var i = 0; i < props.length; i++) {
            var descriptor = props[i];
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ("value" in descriptor) descriptor.writable = true;
            Object.defineProperty(target, descriptor.key, descriptor);
          }
        }

        function _createClass(Constructor, protoProps, staticProps) {
          if (protoProps) _defineProperties(Constructor.prototype, protoProps);
          if (staticProps) _defineProperties(Constructor, staticProps);
          return Constructor;
        }

        var DEFAULT_LINK_REL = 'noopener noreferrer nofollow';
        exports.DEFAULT_LINK_REL = DEFAULT_LINK_REL;
        var SVG_NS = 'http://www.w3.org/2000/svg';

        var DOMCanvasFactory =
          /*#__PURE__*/
          function () {
            function DOMCanvasFactory() {
              _classCallCheck(this, DOMCanvasFactory);
            }

            _createClass(DOMCanvasFactory, [{
              key: "create",
              value: function create(width, height) {
                if (width <= 0 || height <= 0) {
                  throw new Error('invalid canvas size');
                }

                var canvas = document.createElement('canvas');
                var context = canvas.getContext('2d');
                canvas.width = width;
                canvas.height = height;
                return {
                  canvas: canvas,
                  context: context
                };
              }
            }, {
              key: "reset",
              value: function reset(canvasAndContext, width, height) {
                if (!canvasAndContext.canvas) {
                  throw new Error('canvas is not specified');
                }

                if (width <= 0 || height <= 0) {
                  throw new Error('invalid canvas size');
                }

                canvasAndContext.canvas.width = width;
                canvasAndContext.canvas.height = height;
              }
            }, {
              key: "destroy",
              value: function destroy(canvasAndContext) {
                if (!canvasAndContext.canvas) {
                  throw new Error('canvas is not specified');
                }

                canvasAndContext.canvas.width = 0;
                canvasAndContext.canvas.height = 0;
                canvasAndContext.canvas = null;
                canvasAndContext.context = null;
              }
            }]);

            return DOMCanvasFactory;
          }();

        exports.DOMCanvasFactory = DOMCanvasFactory;

        var DOMCMapReaderFactory =
          /*#__PURE__*/
          function () {
            function DOMCMapReaderFactory(_ref) {
              var _ref$baseUrl = _ref.baseUrl,
                baseUrl = _ref$baseUrl === void 0 ? null : _ref$baseUrl,
                _ref$isCompressed = _ref.isCompressed,
                isCompressed = _ref$isCompressed === void 0 ? false : _ref$isCompressed;

              _classCallCheck(this, DOMCMapReaderFactory);

              this.baseUrl = baseUrl;
              this.isCompressed = isCompressed;
            }

            _createClass(DOMCMapReaderFactory, [{
              key: "fetch",
              value: function fetch(_ref2) {
                var _this = this;

                var name = _ref2.name;

                if (!this.baseUrl) {
                  return Promise.reject(new Error('The CMap "baseUrl" parameter must be specified, ensure that ' + 'the "cMapUrl" and "cMapPacked" API parameters are provided.'));
                }

                if (!name) {
                  return Promise.reject(new Error('CMap name must be specified.'));
                }

                return new Promise(function (resolve, reject) {
                  var url = _this.baseUrl + name + (_this.isCompressed ? '.bcmap' : '');
                  var request = new XMLHttpRequest();
                  request.open('GET', url, true);

                  if (_this.isCompressed) {
                    request.responseType = 'arraybuffer';
                  }

                  request.onreadystatechange = function () {
                    if (request.readyState !== XMLHttpRequest.DONE) {
                      return;
                    }

                    if (request.status === 200 || request.status === 0) {
                      var data;

                      if (_this.isCompressed && request.response) {
                        data = new Uint8Array(request.response);
                      } else if (!_this.isCompressed && request.responseText) {
                        data = (0, _util.stringToBytes)(request.responseText);
                      }

                      if (data) {
                        resolve({
                          cMapData: data,
                          compressionType: _this.isCompressed ? _util.CMapCompressionType.BINARY : _util.CMapCompressionType.NONE
                        });
                        return;
                      }
                    }

                    reject(new Error('Unable to load ' + (_this.isCompressed ? 'binary ' : '') + 'CMap at: ' + url));
                  };

                  request.send(null);
                });
              }
            }]);

            return DOMCMapReaderFactory;
          }();

        exports.DOMCMapReaderFactory = DOMCMapReaderFactory;

        var DOMSVGFactory =
          /*#__PURE__*/
          function () {
            function DOMSVGFactory() {
              _classCallCheck(this, DOMSVGFactory);
            }

            _createClass(DOMSVGFactory, [{
              key: "create",
              value: function create(width, height) {
                (0, _util.assert)(width > 0 && height > 0, 'Invalid SVG dimensions');
                var svg = document.createElementNS(SVG_NS, 'svg:svg');
                svg.setAttribute('version', '1.1');
                svg.setAttribute('width', width + 'px');
                svg.setAttribute('height', height + 'px');
                svg.setAttribute('preserveAspectRatio', 'none');
                svg.setAttribute('viewBox', '0 0 ' + width + ' ' + height);
                return svg;
              }
            }, {
              key: "createElement",
              value: function createElement(type) {
                (0, _util.assert)(typeof type === 'string', 'Invalid SVG element type');
                return document.createElementNS(SVG_NS, type);
              }
            }]);

            return DOMSVGFactory;
          }();

        exports.DOMSVGFactory = DOMSVGFactory;

        var PageViewport =
          /*#__PURE__*/
          function () {
            function PageViewport(_ref3) {
              var viewBox = _ref3.viewBox,
                scale = _ref3.scale,
                rotation = _ref3.rotation,
                _ref3$offsetX = _ref3.offsetX,
                offsetX = _ref3$offsetX === void 0 ? 0 : _ref3$offsetX,
                _ref3$offsetY = _ref3.offsetY,
                offsetY = _ref3$offsetY === void 0 ? 0 : _ref3$offsetY,
                _ref3$dontFlip = _ref3.dontFlip,
                dontFlip = _ref3$dontFlip === void 0 ? false : _ref3$dontFlip;

              _classCallCheck(this, PageViewport);

              this.viewBox = viewBox;
              this.scale = scale;
              this.rotation = rotation;
              this.offsetX = offsetX;
              this.offsetY = offsetY;
              var centerX = (viewBox[2] + viewBox[0]) / 2;
              var centerY = (viewBox[3] + viewBox[1]) / 2;
              var rotateA, rotateB, rotateC, rotateD;
              rotation = rotation % 360;
              rotation = rotation < 0 ? rotation + 360 : rotation;

              switch (rotation) {
                case 180:
                  rotateA = -1;
                  rotateB = 0;
                  rotateC = 0;
                  rotateD = 1;
                  break;

                case 90:
                  rotateA = 0;
                  rotateB = 1;
                  rotateC = 1;
                  rotateD = 0;
                  break;

                case 270:
                  rotateA = 0;
                  rotateB = -1;
                  rotateC = -1;
                  rotateD = 0;
                  break;

                default:
                  rotateA = 1;
                  rotateB = 0;
                  rotateC = 0;
                  rotateD = -1;
                  break;
              }

              if (dontFlip) {
                rotateC = -rotateC;
                rotateD = -rotateD;
              }

              var offsetCanvasX, offsetCanvasY;
              var width, height;

              if (rotateA === 0) {
                offsetCanvasX = Math.abs(centerY - viewBox[1]) * scale + offsetX;
                offsetCanvasY = Math.abs(centerX - viewBox[0]) * scale + offsetY;
                width = Math.abs(viewBox[3] - viewBox[1]) * scale;
                height = Math.abs(viewBox[2] - viewBox[0]) * scale;
              } else {
                offsetCanvasX = Math.abs(centerX - viewBox[0]) * scale + offsetX;
                offsetCanvasY = Math.abs(centerY - viewBox[1]) * scale + offsetY;
                width = Math.abs(viewBox[2] - viewBox[0]) * scale;
                height = Math.abs(viewBox[3] - viewBox[1]) * scale;
              }

              this.transform = [rotateA * scale, rotateB * scale, rotateC * scale, rotateD * scale, offsetCanvasX - rotateA * scale * centerX - rotateC * scale * centerY, offsetCanvasY - rotateB * scale * centerX - rotateD * scale * centerY];
              this.width = width;
              this.height = height;
            }

            _createClass(PageViewport, [{
              key: "clone",
              value: function clone() {
                var _ref4 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
                  _ref4$scale = _ref4.scale,
                  scale = _ref4$scale === void 0 ? this.scale : _ref4$scale,
                  _ref4$rotation = _ref4.rotation,
                  rotation = _ref4$rotation === void 0 ? this.rotation : _ref4$rotation,
                  _ref4$dontFlip = _ref4.dontFlip,
                  dontFlip = _ref4$dontFlip === void 0 ? false : _ref4$dontFlip;

                return new PageViewport({
                  viewBox: this.viewBox.slice(),
                  scale: scale,
                  rotation: rotation,
                  offsetX: this.offsetX,
                  offsetY: this.offsetY,
                  dontFlip: dontFlip
                });
              }
            }, {
              key: "convertToViewportPoint",
              value: function convertToViewportPoint(x, y) {
                return _util.Util.applyTransform([x, y], this.transform);
              }
            }, {
              key: "convertToViewportRectangle",
              value: function convertToViewportRectangle(rect) {
                var tl = _util.Util.applyTransform([rect[0], rect[1]], this.transform);

                var br = _util.Util.applyTransform([rect[2], rect[3]], this.transform);

                return [tl[0], tl[1], br[0], br[1]];
              }
            }, {
              key: "convertToPdfPoint",
              value: function convertToPdfPoint(x, y) {
                return _util.Util.applyInverseTransform([x, y], this.transform);
              }
            }]);

            return PageViewport;
          }();

        exports.PageViewport = PageViewport;

        var RenderingCancelledException = function RenderingCancelledException() {
          function RenderingCancelledException(msg, type) {
            this.message = msg;
            this.type = type;
          }

          RenderingCancelledException.prototype = new Error();
          RenderingCancelledException.prototype.name = 'RenderingCancelledException';
          RenderingCancelledException.constructor = RenderingCancelledException;
          return RenderingCancelledException;
        }();

        exports.RenderingCancelledException = RenderingCancelledException;
        var LinkTarget = {
          NONE: 0,
          SELF: 1,
          BLANK: 2,
          PARENT: 3,
          TOP: 4
        };
        exports.LinkTarget = LinkTarget;
        var LinkTargetStringMap = ['', '_self', '_blank', '_parent', '_top'];

        function addLinkAttributes(link) {
          var _ref5 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
            url = _ref5.url,
            target = _ref5.target,
            rel = _ref5.rel;

          link.href = link.title = url ? (0, _util.removeNullCharacters)(url) : '';

          if (url) {
            var LinkTargetValues = Object.values(LinkTarget);
            var targetIndex = LinkTargetValues.includes(target) ? target : LinkTarget.NONE;
            link.target = LinkTargetStringMap[targetIndex];
            link.rel = typeof rel === 'string' ? rel : DEFAULT_LINK_REL;
          }
        }

        function getFilenameFromUrl(url) {
          var anchor = url.indexOf('#');
          var query = url.indexOf('?');
          var end = Math.min(anchor > 0 ? anchor : url.length, query > 0 ? query : url.length);
          return url.substring(url.lastIndexOf('/', end) + 1, end);
        }

        var StatTimer =
          /*#__PURE__*/
          function () {
            function StatTimer() {
              var enable = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;

              _classCallCheck(this, StatTimer);

              this.enabled = !!enable;
              this.started = Object.create(null);
              this.times = [];
            }

            _createClass(StatTimer, [{
              key: "time",
              value: function time(name) {
                if (!this.enabled) {
                  return;
                }

                if (name in this.started) {
                  (0, _util.warn)('Timer is already running for ' + name);
                }

                this.started[name] = Date.now();
              }
            }, {
              key: "timeEnd",
              value: function timeEnd(name) {
                if (!this.enabled) {
                  return;
                }

                if (!(name in this.started)) {
                  (0, _util.warn)('Timer has not been started for ' + name);
                }

                this.times.push({
                  'name': name,
                  'start': this.started[name],
                  'end': Date.now()
                });
                delete this.started[name];
              }
            }, {
              key: "toString",
              value: function toString() {
                var times = this.times;
                var out = '',
                  longest = 0;

                for (var i = 0, ii = times.length; i < ii; ++i) {
                  var name = times[i]['name'];

                  if (name.length > longest) {
                    longest = name.length;
                  }
                }

                for (var _i = 0, _ii = times.length; _i < _ii; ++_i) {
                  var span = times[_i];
                  var duration = span.end - span.start;
                  out += "".concat(span['name'].padEnd(longest), " ").concat(duration, "ms\n");
                }

                return out;
              }
            }]);

            return StatTimer;
          }();

        exports.StatTimer = StatTimer;

        var DummyStatTimer =
          /*#__PURE__*/
          function () {
            function DummyStatTimer() {
              _classCallCheck(this, DummyStatTimer);

              (0, _util.unreachable)('Cannot initialize DummyStatTimer.');
            }

            _createClass(DummyStatTimer, null, [{
              key: "time",
              value: function time(name) {
              }
            }, {
              key: "timeEnd",
              value: function timeEnd(name) {
              }
            }, {
              key: "toString",
              value: function toString() {
                return '';
              }
            }]);

            return DummyStatTimer;
          }();

        exports.DummyStatTimer = DummyStatTimer;

        function loadScript(src) {
          return new Promise(function (resolve, reject) {
            var script = document.createElement('script');
            script.src = src;
            script.onload = resolve;

            script.onerror = function () {
              reject(new Error("Cannot load script at: ".concat(script.src)));
            };

            (document.head || document.documentElement).appendChild(script);
          });
        }

        /***/
      }),
      /* 152 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.FontLoader = exports.FontFaceObject = void 0;

        var _regenerator = _interopRequireDefault(__w_pdfjs_require__(147));

        var _util = __w_pdfjs_require__(1);

        function _interopRequireDefault(obj) {
          return obj && obj.__esModule ? obj : {default: obj};
        }

        function _typeof(obj) {
          if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof = function _typeof(obj) {
              return typeof obj;
            };
          } else {
            _typeof = function _typeof(obj) {
              return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
          }
          return _typeof(obj);
        }

        function _possibleConstructorReturn(self, call) {
          if (call && (_typeof(call) === "object" || typeof call === "function")) {
            return call;
          }
          return _assertThisInitialized(self);
        }

        function _assertThisInitialized(self) {
          if (self === void 0) {
            throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
          }
          return self;
        }

        function _getPrototypeOf(o) {
          _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
            return o.__proto__ || Object.getPrototypeOf(o);
          };
          return _getPrototypeOf(o);
        }

        function _inherits(subClass, superClass) {
          if (typeof superClass !== "function" && superClass !== null) {
            throw new TypeError("Super expression must either be null or a function");
          }
          subClass.prototype = Object.create(superClass && superClass.prototype, {
            constructor: {
              value: subClass,
              writable: true,
              configurable: true
            }
          });
          if (superClass) _setPrototypeOf(subClass, superClass);
        }

        function _setPrototypeOf(o, p) {
          _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
            o.__proto__ = p;
            return o;
          };
          return _setPrototypeOf(o, p);
        }

        function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
          try {
            var info = gen[key](arg);
            var value = info.value;
          } catch (error) {
            reject(error);
            return;
          }
          if (info.done) {
            resolve(value);
          } else {
            Promise.resolve(value).then(_next, _throw);
          }
        }

        function _asyncToGenerator(fn) {
          return function () {
            var self = this, args = arguments;
            return new Promise(function (resolve, reject) {
              var gen = fn.apply(self, args);

              function _next(value) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
              }

              function _throw(err) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
              }

              _next(undefined);
            });
          };
        }

        function _classCallCheck(instance, Constructor) {
          if (!(instance instanceof Constructor)) {
            throw new TypeError("Cannot call a class as a function");
          }
        }

        function _defineProperties(target, props) {
          for (var i = 0; i < props.length; i++) {
            var descriptor = props[i];
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ("value" in descriptor) descriptor.writable = true;
            Object.defineProperty(target, descriptor.key, descriptor);
          }
        }

        function _createClass(Constructor, protoProps, staticProps) {
          if (protoProps) _defineProperties(Constructor.prototype, protoProps);
          if (staticProps) _defineProperties(Constructor, staticProps);
          return Constructor;
        }

        var BaseFontLoader =
          /*#__PURE__*/
          function () {
            function BaseFontLoader(_ref) {
              var docId = _ref.docId,
                onUnsupportedFeature = _ref.onUnsupportedFeature;

              _classCallCheck(this, BaseFontLoader);

              if (this.constructor === BaseFontLoader) {
                (0, _util.unreachable)('Cannot initialize BaseFontLoader.');
              }

              this.docId = docId;
              this._onUnsupportedFeature = onUnsupportedFeature;
              this.nativeFontFaces = [];
              this.styleElement = null;
            }

            _createClass(BaseFontLoader, [{
              key: "addNativeFontFace",
              value: function addNativeFontFace(nativeFontFace) {
                this.nativeFontFaces.push(nativeFontFace);
                document.fonts.add(nativeFontFace);
              }
            }, {
              key: "insertRule",
              value: function insertRule(rule) {
                var styleElement = this.styleElement;

                if (!styleElement) {
                  styleElement = this.styleElement = document.createElement('style');
                  styleElement.id = "PDFJS_FONT_STYLE_TAG_".concat(this.docId);
                  document.documentElement.getElementsByTagName('head')[0].appendChild(styleElement);
                }

                var styleSheet = styleElement.sheet;
                styleSheet.insertRule(rule, styleSheet.cssRules.length);
              }
            }, {
              key: "clear",
              value: function clear() {
                this.nativeFontFaces.forEach(function (nativeFontFace) {
                  document.fonts.delete(nativeFontFace);
                });
                this.nativeFontFaces.length = 0;

                if (this.styleElement) {
                  this.styleElement.remove();
                  this.styleElement = null;
                }
              }
            }, {
              key: "bind",
              value: function () {
                var _bind = _asyncToGenerator(
                  /*#__PURE__*/
                  _regenerator.default.mark(function _callee(font) {
                    var _this = this;

                    var nativeFontFace, rule;
                    return _regenerator.default.wrap(function _callee$(_context) {
                      while (1) {
                        switch (_context.prev = _context.next) {
                          case 0:
                            if (!(font.attached || font.missingFile)) {
                              _context.next = 2;
                              break;
                            }

                            return _context.abrupt("return");

                          case 2:
                            font.attached = true;

                            if (!this.isFontLoadingAPISupported) {
                              _context.next = 19;
                              break;
                            }

                            nativeFontFace = font.createNativeFontFace();

                            if (!nativeFontFace) {
                              _context.next = 18;
                              break;
                            }

                            this.addNativeFontFace(nativeFontFace);
                            _context.prev = 7;
                            _context.next = 10;
                            return nativeFontFace.loaded;

                          case 10:
                            _context.next = 18;
                            break;

                          case 12:
                            _context.prev = 12;
                            _context.t0 = _context["catch"](7);

                            this._onUnsupportedFeature({
                              featureId: _util.UNSUPPORTED_FEATURES.font
                            });

                            (0, _util.warn)("Failed to load font '".concat(nativeFontFace.family, "': '").concat(_context.t0, "'."));
                            font.disableFontFace = true;
                            throw _context.t0;

                          case 18:
                            return _context.abrupt("return");

                          case 19:
                            rule = font.createFontFaceRule();

                            if (!rule) {
                              _context.next = 25;
                              break;
                            }

                            this.insertRule(rule);

                            if (!this.isSyncFontLoadingSupported) {
                              _context.next = 24;
                              break;
                            }

                            return _context.abrupt("return");

                          case 24:
                            return _context.abrupt("return", new Promise(function (resolve) {
                              var request = _this._queueLoadingCallback(resolve);

                              _this._prepareFontLoadEvent([rule], [font], request);
                            }));

                          case 25:
                          case "end":
                            return _context.stop();
                        }
                      }
                    }, _callee, this, [[7, 12]]);
                  }));

                function bind(_x) {
                  return _bind.apply(this, arguments);
                }

                return bind;
              }()
            }, {
              key: "_queueLoadingCallback",
              value: function _queueLoadingCallback(callback) {
                (0, _util.unreachable)('Abstract method `_queueLoadingCallback`.');
              }
            }, {
              key: "_prepareFontLoadEvent",
              value: function _prepareFontLoadEvent(rules, fontsToLoad, request) {
                (0, _util.unreachable)('Abstract method `_prepareFontLoadEvent`.');
              }
            }, {
              key: "isFontLoadingAPISupported",
              get: function get() {
                (0, _util.unreachable)('Abstract method `isFontLoadingAPISupported`.');
              }
            }, {
              key: "isSyncFontLoadingSupported",
              get: function get() {
                (0, _util.unreachable)('Abstract method `isSyncFontLoadingSupported`.');
              }
            }, {
              key: "_loadTestFont",
              get: function get() {
                (0, _util.unreachable)('Abstract method `_loadTestFont`.');
              }
            }]);

            return BaseFontLoader;
          }();

        var FontLoader;
        exports.FontLoader = FontLoader;
        {
          exports.FontLoader = FontLoader =
            /*#__PURE__*/
            function (_BaseFontLoader) {
              _inherits(GenericFontLoader, _BaseFontLoader);

              function GenericFontLoader(docId) {
                var _this2;

                _classCallCheck(this, GenericFontLoader);

                _this2 = _possibleConstructorReturn(this, _getPrototypeOf(GenericFontLoader).call(this, docId));
                _this2.loadingContext = {
                  requests: [],
                  nextRequestId: 0
                };
                _this2.loadTestFontId = 0;
                return _this2;
              }

              _createClass(GenericFontLoader, [{
                key: "_queueLoadingCallback",
                value: function _queueLoadingCallback(callback) {
                  function completeRequest() {
                    (0, _util.assert)(!request.done, 'completeRequest() cannot be called twice.');
                    request.done = true;

                    while (context.requests.length > 0 && context.requests[0].done) {
                      var otherRequest = context.requests.shift();
                      setTimeout(otherRequest.callback, 0);
                    }
                  }

                  var context = this.loadingContext;
                  var request = {
                    id: "pdfjs-font-loading-".concat(context.nextRequestId++),
                    done: false,
                    complete: completeRequest,
                    callback: callback
                  };
                  context.requests.push(request);
                  return request;
                }
              }, {
                key: "_prepareFontLoadEvent",
                value: function _prepareFontLoadEvent(rules, fonts, request) {
                  function int32(data, offset) {
                    return data.charCodeAt(offset) << 24 | data.charCodeAt(offset + 1) << 16 | data.charCodeAt(offset + 2) << 8 | data.charCodeAt(offset + 3) & 0xff;
                  }

                  function spliceString(s, offset, remove, insert) {
                    var chunk1 = s.substring(0, offset);
                    var chunk2 = s.substring(offset + remove);
                    return chunk1 + insert + chunk2;
                  }

                  var i, ii;
                  var canvas = document.createElement('canvas');
                  canvas.width = 1;
                  canvas.height = 1;
                  var ctx = canvas.getContext('2d');
                  var called = 0;

                  function isFontReady(name, callback) {
                    called++;

                    if (called > 30) {
                      (0, _util.warn)('Load test font never loaded.');
                      callback();
                      return;
                    }

                    ctx.font = '30px ' + name;
                    ctx.fillText('.', 0, 20);
                    var imageData = ctx.getImageData(0, 0, 1, 1);

                    if (imageData.data[3] > 0) {
                      callback();
                      return;
                    }

                    setTimeout(isFontReady.bind(null, name, callback));
                  }

                  var loadTestFontId = "lt".concat(Date.now()).concat(this.loadTestFontId++);
                  var data = this._loadTestFont;
                  var COMMENT_OFFSET = 976;
                  data = spliceString(data, COMMENT_OFFSET, loadTestFontId.length, loadTestFontId);
                  var CFF_CHECKSUM_OFFSET = 16;
                  var XXXX_VALUE = 0x58585858;
                  var checksum = int32(data, CFF_CHECKSUM_OFFSET);

                  for (i = 0, ii = loadTestFontId.length - 3; i < ii; i += 4) {
                    checksum = checksum - XXXX_VALUE + int32(loadTestFontId, i) | 0;
                  }

                  if (i < loadTestFontId.length) {
                    checksum = checksum - XXXX_VALUE + int32(loadTestFontId + 'XXX', i) | 0;
                  }

                  data = spliceString(data, CFF_CHECKSUM_OFFSET, 4, (0, _util.string32)(checksum));
                  var url = "url(data:font/opentype;base64,".concat(btoa(data), ");");
                  var rule = "@font-face {font-family:\"".concat(loadTestFontId, "\";src:").concat(url, "}");
                  this.insertRule(rule);
                  var names = [];

                  for (i = 0, ii = fonts.length; i < ii; i++) {
                    names.push(fonts[i].loadedName);
                  }

                  names.push(loadTestFontId);
                  var div = document.createElement('div');
                  div.setAttribute('style', 'visibility: hidden;' + 'width: 10px; height: 10px;' + 'position: absolute; top: 0px; left: 0px;');

                  for (i = 0, ii = names.length; i < ii; ++i) {
                    var span = document.createElement('span');
                    span.textContent = 'Hi';
                    span.style.fontFamily = names[i];
                    div.appendChild(span);
                  }

                  document.body.appendChild(div);
                  isFontReady(loadTestFontId, function () {
                    document.body.removeChild(div);
                    request.complete();
                  });
                }
              }, {
                key: "isFontLoadingAPISupported",
                get: function get() {
                  var supported = typeof document !== 'undefined' && !!document.fonts;

                  if (supported && typeof navigator !== 'undefined') {
                    var m = /Mozilla\/5.0.*?rv:(\d+).*? Gecko/.exec(navigator.userAgent);

                    if (m && m[1] < 63) {
                      supported = false;
                    }
                  }

                  return (0, _util.shadow)(this, 'isFontLoadingAPISupported', supported);
                }
              }, {
                key: "isSyncFontLoadingSupported",
                get: function get() {
                  var supported = false;

                  if (typeof navigator === 'undefined') {
                    supported = true;
                  } else {
                    var m = /Mozilla\/5.0.*?rv:(\d+).*? Gecko/.exec(navigator.userAgent);

                    if (m && m[1] >= 14) {
                      supported = true;
                    }
                  }

                  return (0, _util.shadow)(this, 'isSyncFontLoadingSupported', supported);
                }
              }, {
                key: "_loadTestFont",
                get: function get() {
                  var getLoadTestFont = function getLoadTestFont() {
                    return atob('T1RUTwALAIAAAwAwQ0ZGIDHtZg4AAAOYAAAAgUZGVE1lkzZwAAAEHAAAABxHREVGABQA' + 'FQAABDgAAAAeT1MvMlYNYwkAAAEgAAAAYGNtYXABDQLUAAACNAAAAUJoZWFk/xVFDQAA' + 'ALwAAAA2aGhlYQdkA+oAAAD0AAAAJGhtdHgD6AAAAAAEWAAAAAZtYXhwAAJQAAAAARgA' + 'AAAGbmFtZVjmdH4AAAGAAAAAsXBvc3T/hgAzAAADeAAAACAAAQAAAAEAALZRFsRfDzz1' + 'AAsD6AAAAADOBOTLAAAAAM4KHDwAAAAAA+gDIQAAAAgAAgAAAAAAAAABAAADIQAAAFoD' + '6AAAAAAD6AABAAAAAAAAAAAAAAAAAAAAAQAAUAAAAgAAAAQD6AH0AAUAAAKKArwAAACM' + 'AooCvAAAAeAAMQECAAACAAYJAAAAAAAAAAAAAQAAAAAAAAAAAAAAAFBmRWQAwAAuAC4D' + 'IP84AFoDIQAAAAAAAQAAAAAAAAAAACAAIAABAAAADgCuAAEAAAAAAAAAAQAAAAEAAAAA' + 'AAEAAQAAAAEAAAAAAAIAAQAAAAEAAAAAAAMAAQAAAAEAAAAAAAQAAQAAAAEAAAAAAAUA' + 'AQAAAAEAAAAAAAYAAQAAAAMAAQQJAAAAAgABAAMAAQQJAAEAAgABAAMAAQQJAAIAAgAB' + 'AAMAAQQJAAMAAgABAAMAAQQJAAQAAgABAAMAAQQJAAUAAgABAAMAAQQJAAYAAgABWABY' + 'AAAAAAAAAwAAAAMAAAAcAAEAAAAAADwAAwABAAAAHAAEACAAAAAEAAQAAQAAAC7//wAA' + 'AC7////TAAEAAAAAAAABBgAAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMAAAAAAAD/gwAyAAAAAQAAAAAAAAAAAAAAAAAA' + 'AAABAAQEAAEBAQJYAAEBASH4DwD4GwHEAvgcA/gXBIwMAYuL+nz5tQXkD5j3CBLnEQAC' + 'AQEBIVhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYAAABAQAADwACAQEEE/t3' + 'Dov6fAH6fAT+fPp8+nwHDosMCvm1Cvm1DAz6fBQAAAAAAAABAAAAAMmJbzEAAAAAzgTj' + 'FQAAAADOBOQpAAEAAAAAAAAADAAUAAQAAAABAAAAAgABAAAAAAAAAAAD6AAAAAAAAA==');
                  };

                  return (0, _util.shadow)(this, '_loadTestFont', getLoadTestFont());
                }
              }]);

              return GenericFontLoader;
            }(BaseFontLoader);
        }
        var IsEvalSupportedCached = {
          get value() {
            return (0, _util.shadow)(this, 'value', (0, _util.isEvalSupported)());
          }

        };

        var FontFaceObject =
          /*#__PURE__*/
          function () {
            function FontFaceObject(translatedData, _ref2) {
              var _ref2$isEvalSupported = _ref2.isEvalSupported,
                isEvalSupported = _ref2$isEvalSupported === void 0 ? true : _ref2$isEvalSupported,
                _ref2$disableFontFace = _ref2.disableFontFace,
                disableFontFace = _ref2$disableFontFace === void 0 ? false : _ref2$disableFontFace,
                _ref2$ignoreErrors = _ref2.ignoreErrors,
                ignoreErrors = _ref2$ignoreErrors === void 0 ? false : _ref2$ignoreErrors,
                _ref2$onUnsupportedFe = _ref2.onUnsupportedFeature,
                onUnsupportedFeature = _ref2$onUnsupportedFe === void 0 ? null : _ref2$onUnsupportedFe,
                _ref2$fontRegistry = _ref2.fontRegistry,
                fontRegistry = _ref2$fontRegistry === void 0 ? null : _ref2$fontRegistry;

              _classCallCheck(this, FontFaceObject);

              this.compiledGlyphs = Object.create(null);

              for (var i in translatedData) {
                this[i] = translatedData[i];
              }

              this.isEvalSupported = isEvalSupported !== false;
              this.disableFontFace = disableFontFace === true;
              this.ignoreErrors = ignoreErrors === true;
              this._onUnsupportedFeature = onUnsupportedFeature;
              this.fontRegistry = fontRegistry;
            }

            _createClass(FontFaceObject, [{
              key: "createNativeFontFace",
              value: function createNativeFontFace() {
                if (!this.data || this.disableFontFace) {
                  return null;
                }

                var nativeFontFace = new FontFace(this.loadedName, this.data, {});

                if (this.fontRegistry) {
                  this.fontRegistry.registerFont(this);
                }

                return nativeFontFace;
              }
            }, {
              key: "createFontFaceRule",
              value: function createFontFaceRule() {
                if (!this.data || this.disableFontFace) {
                  return null;
                }

                var data = (0, _util.bytesToString)(new Uint8Array(this.data));
                var url = "url(data:".concat(this.mimetype, ";base64,").concat(btoa(data), ");");
                var rule = "@font-face {font-family:\"".concat(this.loadedName, "\";src:").concat(url, "}");

                if (this.fontRegistry) {
                  this.fontRegistry.registerFont(this, url);
                }

                return rule;
              }
            }, {
              key: "getPathGenerator",
              value: function getPathGenerator(objs, character) {
                if (this.compiledGlyphs[character] !== undefined) {
                  return this.compiledGlyphs[character];
                }

                var cmds, current;

                try {
                  cmds = objs.get(this.loadedName + '_path_' + character);
                } catch (ex) {
                  if (!this.ignoreErrors) {
                    throw ex;
                  }

                  if (this._onUnsupportedFeature) {
                    this._onUnsupportedFeature({
                      featureId: _util.UNSUPPORTED_FEATURES.font
                    });
                  }

                  (0, _util.warn)("getPathGenerator - ignoring character: \"".concat(ex, "\"."));
                  return this.compiledGlyphs[character] = function (c, size) {
                  };
                }

                if (this.isEvalSupported && IsEvalSupportedCached.value) {
                  var args,
                    js = '';

                  for (var i = 0, ii = cmds.length; i < ii; i++) {
                    current = cmds[i];

                    if (current.args !== undefined) {
                      args = current.args.join(',');
                    } else {
                      args = '';
                    }

                    js += 'c.' + current.cmd + '(' + args + ');\n';
                  }

                  return this.compiledGlyphs[character] = new Function('c', 'size', js);
                }

                return this.compiledGlyphs[character] = function (c, size) {
                  for (var _i = 0, _ii = cmds.length; _i < _ii; _i++) {
                    current = cmds[_i];

                    if (current.cmd === 'scale') {
                      current.args = [size, -size];
                    }

                    c[current.cmd].apply(c, current.args);
                  }
                };
              }
            }]);

            return FontFaceObject;
          }();

        exports.FontFaceObject = FontFaceObject;

        /***/
      }),
      /* 153 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        var compatibilityParams = Object.create(null);
        {
          var isNodeJS = __w_pdfjs_require__(4);

          var userAgent = typeof navigator !== 'undefined' && navigator.userAgent || '';
          var isIE = /Trident/.test(userAgent);
          var isIOSChrome = /CriOS/.test(userAgent);

          (function checkOnBlobSupport() {
            if (isIE || isIOSChrome) {
              compatibilityParams.disableCreateObjectURL = true;
            }
          })();

          (function checkFontFaceAndImage() {
            if (isNodeJS()) {
              compatibilityParams.disableFontFace = true;
              compatibilityParams.nativeImageDecoderSupport = 'none';
            }
          })();
        }
        exports.apiCompatibilityParams = Object.freeze(compatibilityParams);

        /***/
      }),
      /* 154 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.CanvasGraphics = void 0;

        var _util = __w_pdfjs_require__(1);

        var _pattern_helper = __w_pdfjs_require__(155);

        var MIN_FONT_SIZE = 16;
        var MAX_FONT_SIZE = 100;
        var MAX_GROUP_SIZE = 4096;
        var MIN_WIDTH_FACTOR = 0.65;
        var COMPILE_TYPE3_GLYPHS = true;
        var MAX_SIZE_TO_COMPILE = 1000;
        var FULL_CHUNK_HEIGHT = 16;
        var IsLittleEndianCached = {
          get value() {
            return (0, _util.shadow)(IsLittleEndianCached, 'value', (0, _util.isLittleEndian)());
          }

        };

        function addContextCurrentTransform(ctx) {
          if (!ctx.mozCurrentTransform) {
            ctx._originalSave = ctx.save;
            ctx._originalRestore = ctx.restore;
            ctx._originalRotate = ctx.rotate;
            ctx._originalScale = ctx.scale;
            ctx._originalTranslate = ctx.translate;
            ctx._originalTransform = ctx.transform;
            ctx._originalSetTransform = ctx.setTransform;
            ctx._transformMatrix = ctx._transformMatrix || [1, 0, 0, 1, 0, 0];
            ctx._transformStack = [];
            Object.defineProperty(ctx, 'mozCurrentTransform', {
              get: function getCurrentTransform() {
                return this._transformMatrix;
              }
            });
            Object.defineProperty(ctx, 'mozCurrentTransformInverse', {
              get: function getCurrentTransformInverse() {
                var m = this._transformMatrix;
                var a = m[0],
                  b = m[1],
                  c = m[2],
                  d = m[3],
                  e = m[4],
                  f = m[5];
                var ad_bc = a * d - b * c;
                var bc_ad = b * c - a * d;
                return [d / ad_bc, b / bc_ad, c / bc_ad, a / ad_bc, (d * e - c * f) / bc_ad, (b * e - a * f) / ad_bc];
              }
            });

            ctx.save = function ctxSave() {
              var old = this._transformMatrix;

              this._transformStack.push(old);

              this._transformMatrix = old.slice(0, 6);

              this._originalSave();
            };

            ctx.restore = function ctxRestore() {
              var prev = this._transformStack.pop();

              if (prev) {
                this._transformMatrix = prev;

                this._originalRestore();
              }
            };

            ctx.translate = function ctxTranslate(x, y) {
              var m = this._transformMatrix;
              m[4] = m[0] * x + m[2] * y + m[4];
              m[5] = m[1] * x + m[3] * y + m[5];

              this._originalTranslate(x, y);
            };

            ctx.scale = function ctxScale(x, y) {
              var m = this._transformMatrix;
              m[0] = m[0] * x;
              m[1] = m[1] * x;
              m[2] = m[2] * y;
              m[3] = m[3] * y;

              this._originalScale(x, y);
            };

            ctx.transform = function ctxTransform(a, b, c, d, e, f) {
              var m = this._transformMatrix;
              this._transformMatrix = [m[0] * a + m[2] * b, m[1] * a + m[3] * b, m[0] * c + m[2] * d, m[1] * c + m[3] * d, m[0] * e + m[2] * f + m[4], m[1] * e + m[3] * f + m[5]];

              ctx._originalTransform(a, b, c, d, e, f);
            };

            ctx.setTransform = function ctxSetTransform(a, b, c, d, e, f) {
              this._transformMatrix = [a, b, c, d, e, f];

              ctx._originalSetTransform(a, b, c, d, e, f);
            };

            ctx.rotate = function ctxRotate(angle) {
              var cosValue = Math.cos(angle);
              var sinValue = Math.sin(angle);
              var m = this._transformMatrix;
              this._transformMatrix = [m[0] * cosValue + m[2] * sinValue, m[1] * cosValue + m[3] * sinValue, m[0] * -sinValue + m[2] * cosValue, m[1] * -sinValue + m[3] * cosValue, m[4], m[5]];

              this._originalRotate(angle);
            };
          }
        }

        var CachedCanvases = function CachedCanvasesClosure() {
          function CachedCanvases(canvasFactory) {
            this.canvasFactory = canvasFactory;
            this.cache = Object.create(null);
          }

          CachedCanvases.prototype = {
            getCanvas: function CachedCanvases_getCanvas(id, width, height, trackTransform) {
              var canvasEntry;

              if (this.cache[id] !== undefined) {
                canvasEntry = this.cache[id];
                this.canvasFactory.reset(canvasEntry, width, height);
                canvasEntry.context.setTransform(1, 0, 0, 1, 0, 0);
              } else {
                canvasEntry = this.canvasFactory.create(width, height);
                this.cache[id] = canvasEntry;
              }

              if (trackTransform) {
                addContextCurrentTransform(canvasEntry.context);
              }

              return canvasEntry;
            },
            clear: function clear() {
              for (var id in this.cache) {
                var canvasEntry = this.cache[id];
                this.canvasFactory.destroy(canvasEntry);
                delete this.cache[id];
              }
            }
          };
          return CachedCanvases;
        }();

        function compileType3Glyph(imgData) {
          var POINT_TO_PROCESS_LIMIT = 1000;
          var width = imgData.width,
            height = imgData.height;
          var i,
            j,
            j0,
            width1 = width + 1;
          var points = new Uint8Array(width1 * (height + 1));
          var POINT_TYPES = new Uint8Array([0, 2, 4, 0, 1, 0, 5, 4, 8, 10, 0, 8, 0, 2, 1, 0]);
          var lineSize = width + 7 & ~7,
            data0 = imgData.data;
          var data = new Uint8Array(lineSize * height),
            pos = 0,
            ii;

          for (i = 0, ii = data0.length; i < ii; i++) {
            var mask = 128,
              elem = data0[i];

            while (mask > 0) {
              data[pos++] = elem & mask ? 0 : 255;
              mask >>= 1;
            }
          }

          var count = 0;
          pos = 0;

          if (data[pos] !== 0) {
            points[0] = 1;
            ++count;
          }

          for (j = 1; j < width; j++) {
            if (data[pos] !== data[pos + 1]) {
              points[j] = data[pos] ? 2 : 1;
              ++count;
            }

            pos++;
          }

          if (data[pos] !== 0) {
            points[j] = 2;
            ++count;
          }

          for (i = 1; i < height; i++) {
            pos = i * lineSize;
            j0 = i * width1;

            if (data[pos - lineSize] !== data[pos]) {
              points[j0] = data[pos] ? 1 : 8;
              ++count;
            }

            var sum = (data[pos] ? 4 : 0) + (data[pos - lineSize] ? 8 : 0);

            for (j = 1; j < width; j++) {
              sum = (sum >> 2) + (data[pos + 1] ? 4 : 0) + (data[pos - lineSize + 1] ? 8 : 0);

              if (POINT_TYPES[sum]) {
                points[j0 + j] = POINT_TYPES[sum];
                ++count;
              }

              pos++;
            }

            if (data[pos - lineSize] !== data[pos]) {
              points[j0 + j] = data[pos] ? 2 : 4;
              ++count;
            }

            if (count > POINT_TO_PROCESS_LIMIT) {
              return null;
            }
          }

          pos = lineSize * (height - 1);
          j0 = i * width1;

          if (data[pos] !== 0) {
            points[j0] = 8;
            ++count;
          }

          for (j = 1; j < width; j++) {
            if (data[pos] !== data[pos + 1]) {
              points[j0 + j] = data[pos] ? 4 : 8;
              ++count;
            }

            pos++;
          }

          if (data[pos] !== 0) {
            points[j0 + j] = 4;
            ++count;
          }

          if (count > POINT_TO_PROCESS_LIMIT) {
            return null;
          }

          var steps = new Int32Array([0, width1, -1, 0, -width1, 0, 0, 0, 1]);
          var outlines = [];

          for (i = 0; count && i <= height; i++) {
            var p = i * width1;
            var end = p + width;

            while (p < end && !points[p]) {
              p++;
            }

            if (p === end) {
              continue;
            }

            var coords = [p % width1, i];
            var type = points[p],
              p0 = p,
              pp;

            do {
              var step = steps[type];

              do {
                p += step;
              } while (!points[p]);

              pp = points[p];

              if (pp !== 5 && pp !== 10) {
                type = pp;
                points[p] = 0;
              } else {
                type = pp & 0x33 * type >> 4;
                points[p] &= type >> 2 | type << 2;
              }

              coords.push(p % width1);
              coords.push(p / width1 | 0);
              --count;
            } while (p0 !== p);

            outlines.push(coords);
            --i;
          }

          var drawOutline = function drawOutline(c) {
            c.save();
            c.scale(1 / width, -1 / height);
            c.translate(0, -height);
            c.beginPath();

            for (var i = 0, ii = outlines.length; i < ii; i++) {
              var o = outlines[i];
              c.moveTo(o[0], o[1]);

              for (var j = 2, jj = o.length; j < jj; j += 2) {
                c.lineTo(o[j], o[j + 1]);
              }
            }

            c.fill();
            c.beginPath();
            c.restore();
          };

          return drawOutline;
        }

        var CanvasExtraState = function CanvasExtraStateClosure() {
          function CanvasExtraState() {
            this.alphaIsShape = false;
            this.fontSize = 0;
            this.fontSizeScale = 1;
            this.textMatrix = _util.IDENTITY_MATRIX;
            this.textMatrixScale = 1;
            this.fontMatrix = _util.FONT_IDENTITY_MATRIX;
            this.leading = 0;
            this.x = 0;
            this.y = 0;
            this.lineX = 0;
            this.lineY = 0;
            this.charSpacing = 0;
            this.wordSpacing = 0;
            this.textHScale = 1;
            this.textRenderingMode = _util.TextRenderingMode.FILL;
            this.textRise = 0;
            this.fillColor = '#000000';
            this.strokeColor = '#000000';
            this.patternFill = false;
            this.fillAlpha = 1;
            this.strokeAlpha = 1;
            this.lineWidth = 1;
            this.activeSMask = null;
            this.resumeSMaskCtx = null;
          }

          CanvasExtraState.prototype = {
            clone: function CanvasExtraState_clone() {
              return Object.create(this);
            },
            setCurrentPoint: function CanvasExtraState_setCurrentPoint(x, y) {
              this.x = x;
              this.y = y;
            }
          };
          return CanvasExtraState;
        }();

        var CanvasGraphics = function CanvasGraphicsClosure() {
          var EXECUTION_TIME = 15;
          var EXECUTION_STEPS = 10;

          function CanvasGraphics(canvasCtx, commonObjs, objs, canvasFactory, webGLContext, imageLayer) {
            this.ctx = canvasCtx;
            this.current = new CanvasExtraState();
            this.stateStack = [];
            this.pendingClip = null;
            this.pendingEOFill = false;
            this.res = null;
            this.xobjs = null;
            this.commonObjs = commonObjs;
            this.objs = objs;
            this.canvasFactory = canvasFactory;
            this.webGLContext = webGLContext;
            this.imageLayer = imageLayer;
            this.groupStack = [];
            this.processingType3 = null;
            this.baseTransform = null;
            this.baseTransformStack = [];
            this.groupLevel = 0;
            this.smaskStack = [];
            this.smaskCounter = 0;
            this.tempSMask = null;
            this.cachedCanvases = new CachedCanvases(this.canvasFactory);

            if (canvasCtx) {
              addContextCurrentTransform(canvasCtx);
            }

            this._cachedGetSinglePixelWidth = null;
          }

          function putBinaryImageData(ctx, imgData) {
            if (typeof ImageData !== 'undefined' && imgData instanceof ImageData) {
              ctx.putImageData(imgData, 0, 0);
              return;
            }

            var height = imgData.height,
              width = imgData.width;
            var partialChunkHeight = height % FULL_CHUNK_HEIGHT;
            var fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT;
            var totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1;
            var chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT);
            var srcPos = 0,
              destPos;
            var src = imgData.data;
            var dest = chunkImgData.data;
            var i, j, thisChunkHeight, elemsInThisChunk;

            if (imgData.kind === _util.ImageKind.GRAYSCALE_1BPP) {
              var srcLength = src.byteLength;
              var dest32 = new Uint32Array(dest.buffer, 0, dest.byteLength >> 2);
              var dest32DataLength = dest32.length;
              var fullSrcDiff = width + 7 >> 3;
              var white = 0xFFFFFFFF;
              var black = IsLittleEndianCached.value ? 0xFF000000 : 0x000000FF;

              for (i = 0; i < totalChunks; i++) {
                thisChunkHeight = i < fullChunks ? FULL_CHUNK_HEIGHT : partialChunkHeight;
                destPos = 0;

                for (j = 0; j < thisChunkHeight; j++) {
                  var srcDiff = srcLength - srcPos;
                  var k = 0;
                  var kEnd = srcDiff > fullSrcDiff ? width : srcDiff * 8 - 7;
                  var kEndUnrolled = kEnd & ~7;
                  var mask = 0;
                  var srcByte = 0;

                  for (; k < kEndUnrolled; k += 8) {
                    srcByte = src[srcPos++];
                    dest32[destPos++] = srcByte & 128 ? white : black;
                    dest32[destPos++] = srcByte & 64 ? white : black;
                    dest32[destPos++] = srcByte & 32 ? white : black;
                    dest32[destPos++] = srcByte & 16 ? white : black;
                    dest32[destPos++] = srcByte & 8 ? white : black;
                    dest32[destPos++] = srcByte & 4 ? white : black;
                    dest32[destPos++] = srcByte & 2 ? white : black;
                    dest32[destPos++] = srcByte & 1 ? white : black;
                  }

                  for (; k < kEnd; k++) {
                    if (mask === 0) {
                      srcByte = src[srcPos++];
                      mask = 128;
                    }

                    dest32[destPos++] = srcByte & mask ? white : black;
                    mask >>= 1;
                  }
                }

                while (destPos < dest32DataLength) {
                  dest32[destPos++] = 0;
                }

                ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
              }
            } else if (imgData.kind === _util.ImageKind.RGBA_32BPP) {
              j = 0;
              elemsInThisChunk = width * FULL_CHUNK_HEIGHT * 4;

              for (i = 0; i < fullChunks; i++) {
                dest.set(src.subarray(srcPos, srcPos + elemsInThisChunk));
                srcPos += elemsInThisChunk;
                ctx.putImageData(chunkImgData, 0, j);
                j += FULL_CHUNK_HEIGHT;
              }

              if (i < totalChunks) {
                elemsInThisChunk = width * partialChunkHeight * 4;
                dest.set(src.subarray(srcPos, srcPos + elemsInThisChunk));
                ctx.putImageData(chunkImgData, 0, j);
              }
            } else if (imgData.kind === _util.ImageKind.RGB_24BPP) {
              thisChunkHeight = FULL_CHUNK_HEIGHT;
              elemsInThisChunk = width * thisChunkHeight;

              for (i = 0; i < totalChunks; i++) {
                if (i >= fullChunks) {
                  thisChunkHeight = partialChunkHeight;
                  elemsInThisChunk = width * thisChunkHeight;
                }

                destPos = 0;

                for (j = elemsInThisChunk; j--;) {
                  dest[destPos++] = src[srcPos++];
                  dest[destPos++] = src[srcPos++];
                  dest[destPos++] = src[srcPos++];
                  dest[destPos++] = 255;
                }

                ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
              }
            } else {
              throw new Error("bad image kind: ".concat(imgData.kind));
            }
          }

          function putBinaryImageMask(ctx, imgData) {
            var height = imgData.height,
              width = imgData.width;
            var partialChunkHeight = height % FULL_CHUNK_HEIGHT;
            var fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT;
            var totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1;
            var chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT);
            var srcPos = 0;
            var src = imgData.data;
            var dest = chunkImgData.data;

            for (var i = 0; i < totalChunks; i++) {
              var thisChunkHeight = i < fullChunks ? FULL_CHUNK_HEIGHT : partialChunkHeight;
              var destPos = 3;

              for (var j = 0; j < thisChunkHeight; j++) {
                var mask = 0;

                for (var k = 0; k < width; k++) {
                  if (!mask) {
                    var elem = src[srcPos++];
                    mask = 128;
                  }

                  dest[destPos] = elem & mask ? 0 : 255;
                  destPos += 4;
                  mask >>= 1;
                }
              }

              ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
            }
          }

          function copyCtxState(sourceCtx, destCtx) {
            var properties = ['strokeStyle', 'fillStyle', 'fillRule', 'globalAlpha', 'lineWidth', 'lineCap', 'lineJoin', 'miterLimit', 'globalCompositeOperation', 'font'];

            for (var i = 0, ii = properties.length; i < ii; i++) {
              var property = properties[i];

              if (sourceCtx[property] !== undefined) {
                destCtx[property] = sourceCtx[property];
              }
            }

            if (sourceCtx.setLineDash !== undefined) {
              destCtx.setLineDash(sourceCtx.getLineDash());
              destCtx.lineDashOffset = sourceCtx.lineDashOffset;
            }
          }

          function resetCtxToDefault(ctx) {
            ctx.strokeStyle = '#000000';
            ctx.fillStyle = '#000000';
            ctx.fillRule = 'nonzero';
            ctx.globalAlpha = 1;
            ctx.lineWidth = 1;
            ctx.lineCap = 'butt';
            ctx.lineJoin = 'miter';
            ctx.miterLimit = 10;
            ctx.globalCompositeOperation = 'source-over';
            ctx.font = '10px sans-serif';

            if (ctx.setLineDash !== undefined) {
              ctx.setLineDash([]);
              ctx.lineDashOffset = 0;
            }
          }

          function composeSMaskBackdrop(bytes, r0, g0, b0) {
            var length = bytes.length;

            for (var i = 3; i < length; i += 4) {
              var alpha = bytes[i];

              if (alpha === 0) {
                bytes[i - 3] = r0;
                bytes[i - 2] = g0;
                bytes[i - 1] = b0;
              } else if (alpha < 255) {
                var alpha_ = 255 - alpha;
                bytes[i - 3] = bytes[i - 3] * alpha + r0 * alpha_ >> 8;
                bytes[i - 2] = bytes[i - 2] * alpha + g0 * alpha_ >> 8;
                bytes[i - 1] = bytes[i - 1] * alpha + b0 * alpha_ >> 8;
              }
            }
          }

          function composeSMaskAlpha(maskData, layerData, transferMap) {
            var length = maskData.length;
            var scale = 1 / 255;

            for (var i = 3; i < length; i += 4) {
              var alpha = transferMap ? transferMap[maskData[i]] : maskData[i];
              layerData[i] = layerData[i] * alpha * scale | 0;
            }
          }

          function composeSMaskLuminosity(maskData, layerData, transferMap) {
            var length = maskData.length;

            for (var i = 3; i < length; i += 4) {
              var y = maskData[i - 3] * 77 + maskData[i - 2] * 152 + maskData[i - 1] * 28;
              layerData[i] = transferMap ? layerData[i] * transferMap[y >> 8] >> 8 : layerData[i] * y >> 16;
            }
          }

          function genericComposeSMask(maskCtx, layerCtx, width, height, subtype, backdrop, transferMap) {
            var hasBackdrop = !!backdrop;
            var r0 = hasBackdrop ? backdrop[0] : 0;
            var g0 = hasBackdrop ? backdrop[1] : 0;
            var b0 = hasBackdrop ? backdrop[2] : 0;
            var composeFn;

            if (subtype === 'Luminosity') {
              composeFn = composeSMaskLuminosity;
            } else {
              composeFn = composeSMaskAlpha;
            }

            var PIXELS_TO_PROCESS = 1048576;
            var chunkSize = Math.min(height, Math.ceil(PIXELS_TO_PROCESS / width));

            for (var row = 0; row < height; row += chunkSize) {
              var chunkHeight = Math.min(chunkSize, height - row);
              var maskData = maskCtx.getImageData(0, row, width, chunkHeight);
              var layerData = layerCtx.getImageData(0, row, width, chunkHeight);

              if (hasBackdrop) {
                composeSMaskBackdrop(maskData.data, r0, g0, b0);
              }

              composeFn(maskData.data, layerData.data, transferMap);
              maskCtx.putImageData(layerData, 0, row);
            }
          }

          function composeSMask(ctx, smask, layerCtx, webGLContext) {
            var mask = smask.canvas;
            var maskCtx = smask.context;
            ctx.setTransform(smask.scaleX, 0, 0, smask.scaleY, smask.offsetX, smask.offsetY);
            var backdrop = smask.backdrop || null;

            if (!smask.transferMap && webGLContext.isEnabled) {
              var composed = webGLContext.composeSMask({
                layer: layerCtx.canvas,
                mask: mask,
                properties: {
                  subtype: smask.subtype,
                  backdrop: backdrop
                }
              });
              ctx.setTransform(1, 0, 0, 1, 0, 0);
              ctx.drawImage(composed, smask.offsetX, smask.offsetY);
              return;
            }

            genericComposeSMask(maskCtx, layerCtx, mask.width, mask.height, smask.subtype, backdrop, smask.transferMap);
            ctx.drawImage(mask, 0, 0);
          }

          var LINE_CAP_STYLES = ['butt', 'round', 'square'];
          var LINE_JOIN_STYLES = ['miter', 'round', 'bevel'];
          var NORMAL_CLIP = {};
          var EO_CLIP = {};
          CanvasGraphics.prototype = {
            beginDrawing: function beginDrawing(_ref) {
              var transform = _ref.transform,
                viewport = _ref.viewport,
                _ref$transparency = _ref.transparency,
                transparency = _ref$transparency === void 0 ? false : _ref$transparency,
                _ref$background = _ref.background,
                background = _ref$background === void 0 ? null : _ref$background;
              var width = this.ctx.canvas.width;
              var height = this.ctx.canvas.height;
              this.ctx.save();
              this.ctx.fillStyle = background || 'rgb(255, 255, 255)';
              this.ctx.fillRect(0, 0, width, height);
              this.ctx.restore();

              if (transparency) {
                var transparentCanvas = this.cachedCanvases.getCanvas('transparent', width, height, true);
                this.compositeCtx = this.ctx;
                this.transparentCanvas = transparentCanvas.canvas;
                this.ctx = transparentCanvas.context;
                this.ctx.save();
                this.ctx.transform.apply(this.ctx, this.compositeCtx.mozCurrentTransform);
              }

              this.ctx.save();
              resetCtxToDefault(this.ctx);

              if (transform) {
                this.ctx.transform.apply(this.ctx, transform);
              }

              this.ctx.transform.apply(this.ctx, viewport.transform);
              this.baseTransform = this.ctx.mozCurrentTransform.slice();

              if (this.imageLayer) {
                this.imageLayer.beginLayout();
              }
            },
            executeOperatorList: function CanvasGraphics_executeOperatorList(operatorList, executionStartIdx, continueCallback, stepper) {
              var argsArray = operatorList.argsArray;
              var fnArray = operatorList.fnArray;
              var i = executionStartIdx || 0;
              var argsArrayLen = argsArray.length;

              if (argsArrayLen === i) {
                return i;
              }

              var chunkOperations = argsArrayLen - i > EXECUTION_STEPS && typeof continueCallback === 'function';
              var endTime = chunkOperations ? Date.now() + EXECUTION_TIME : 0;
              var steps = 0;
              var commonObjs = this.commonObjs;
              var objs = this.objs;
              var fnId;

              while (true) {
                if (stepper !== undefined && i === stepper.nextBreakPoint) {
                  stepper.breakIt(i, continueCallback);
                  return i;
                }

                fnId = fnArray[i];

                if (fnId !== _util.OPS.dependency) {
                  this[fnId].apply(this, argsArray[i]);
                } else {
                  var deps = argsArray[i];

                  for (var n = 0, nn = deps.length; n < nn; n++) {
                    var depObjId = deps[n];
                    var common = depObjId[0] === 'g' && depObjId[1] === '_';
                    var objsPool = common ? commonObjs : objs;

                    if (!objsPool.has(depObjId)) {
                      objsPool.get(depObjId, continueCallback);
                      return i;
                    }
                  }
                }

                i++;

                if (i === argsArrayLen) {
                  return i;
                }

                if (chunkOperations && ++steps > EXECUTION_STEPS) {
                  if (Date.now() > endTime) {
                    continueCallback();
                    return i;
                  }

                  steps = 0;
                }
              }
            },
            endDrawing: function CanvasGraphics_endDrawing() {
              if (this.current.activeSMask !== null) {
                this.endSMaskGroup();
              }

              this.ctx.restore();

              if (this.transparentCanvas) {
                this.ctx = this.compositeCtx;
                this.ctx.save();
                this.ctx.setTransform(1, 0, 0, 1, 0, 0);
                this.ctx.drawImage(this.transparentCanvas, 0, 0);
                this.ctx.restore();
                this.transparentCanvas = null;
              }

              this.cachedCanvases.clear();
              this.webGLContext.clear();

              if (this.imageLayer) {
                this.imageLayer.endLayout();
              }
            },
            setLineWidth: function CanvasGraphics_setLineWidth(width) {
              this.current.lineWidth = width;
              this.ctx.lineWidth = width;
            },
            setLineCap: function CanvasGraphics_setLineCap(style) {
              this.ctx.lineCap = LINE_CAP_STYLES[style];
            },
            setLineJoin: function CanvasGraphics_setLineJoin(style) {
              this.ctx.lineJoin = LINE_JOIN_STYLES[style];
            },
            setMiterLimit: function CanvasGraphics_setMiterLimit(limit) {
              this.ctx.miterLimit = limit;
            },
            setDash: function CanvasGraphics_setDash(dashArray, dashPhase) {
              var ctx = this.ctx;

              if (ctx.setLineDash !== undefined) {
                ctx.setLineDash(dashArray);
                ctx.lineDashOffset = dashPhase;
              }
            },
            setRenderingIntent: function CanvasGraphics_setRenderingIntent(intent) {
            },
            setFlatness: function CanvasGraphics_setFlatness(flatness) {
            },
            setGState: function CanvasGraphics_setGState(states) {
              for (var i = 0, ii = states.length; i < ii; i++) {
                var state = states[i];
                var key = state[0];
                var value = state[1];

                switch (key) {
                  case 'LW':
                    this.setLineWidth(value);
                    break;

                  case 'LC':
                    this.setLineCap(value);
                    break;

                  case 'LJ':
                    this.setLineJoin(value);
                    break;

                  case 'ML':
                    this.setMiterLimit(value);
                    break;

                  case 'D':
                    this.setDash(value[0], value[1]);
                    break;

                  case 'RI':
                    this.setRenderingIntent(value);
                    break;

                  case 'FL':
                    this.setFlatness(value);
                    break;

                  case 'Font':
                    this.setFont(value[0], value[1]);
                    break;

                  case 'CA':
                    this.current.strokeAlpha = state[1];
                    break;

                  case 'ca':
                    this.current.fillAlpha = state[1];
                    this.ctx.globalAlpha = state[1];
                    break;

                  case 'BM':
                    this.ctx.globalCompositeOperation = value;
                    break;

                  case 'SMask':
                    if (this.current.activeSMask) {
                      if (this.stateStack.length > 0 && this.stateStack[this.stateStack.length - 1].activeSMask === this.current.activeSMask) {
                        this.suspendSMaskGroup();
                      } else {
                        this.endSMaskGroup();
                      }
                    }

                    this.current.activeSMask = value ? this.tempSMask : null;

                    if (this.current.activeSMask) {
                      this.beginSMaskGroup();
                    }

                    this.tempSMask = null;
                    break;
                }
              }
            },
            beginSMaskGroup: function CanvasGraphics_beginSMaskGroup() {
              var activeSMask = this.current.activeSMask;
              var drawnWidth = activeSMask.canvas.width;
              var drawnHeight = activeSMask.canvas.height;
              var cacheId = 'smaskGroupAt' + this.groupLevel;
              var scratchCanvas = this.cachedCanvases.getCanvas(cacheId, drawnWidth, drawnHeight, true);
              var currentCtx = this.ctx;
              var currentTransform = currentCtx.mozCurrentTransform;
              this.ctx.save();
              var groupCtx = scratchCanvas.context;
              groupCtx.scale(1 / activeSMask.scaleX, 1 / activeSMask.scaleY);
              groupCtx.translate(-activeSMask.offsetX, -activeSMask.offsetY);
              groupCtx.transform.apply(groupCtx, currentTransform);
              activeSMask.startTransformInverse = groupCtx.mozCurrentTransformInverse;
              copyCtxState(currentCtx, groupCtx);
              this.ctx = groupCtx;
              this.setGState([['BM', 'source-over'], ['ca', 1], ['CA', 1]]);
              this.groupStack.push(currentCtx);
              this.groupLevel++;
            },
            suspendSMaskGroup: function CanvasGraphics_endSMaskGroup() {
              var groupCtx = this.ctx;
              this.groupLevel--;
              this.ctx = this.groupStack.pop();
              composeSMask(this.ctx, this.current.activeSMask, groupCtx, this.webGLContext);
              this.ctx.restore();
              this.ctx.save();
              copyCtxState(groupCtx, this.ctx);
              this.current.resumeSMaskCtx = groupCtx;

              var deltaTransform = _util.Util.transform(this.current.activeSMask.startTransformInverse, groupCtx.mozCurrentTransform);

              this.ctx.transform.apply(this.ctx, deltaTransform);
              groupCtx.save();
              groupCtx.setTransform(1, 0, 0, 1, 0, 0);
              groupCtx.clearRect(0, 0, groupCtx.canvas.width, groupCtx.canvas.height);
              groupCtx.restore();
            },
            resumeSMaskGroup: function CanvasGraphics_endSMaskGroup() {
              var groupCtx = this.current.resumeSMaskCtx;
              var currentCtx = this.ctx;
              this.ctx = groupCtx;
              this.groupStack.push(currentCtx);
              this.groupLevel++;
            },
            endSMaskGroup: function CanvasGraphics_endSMaskGroup() {
              var groupCtx = this.ctx;
              this.groupLevel--;
              this.ctx = this.groupStack.pop();
              composeSMask(this.ctx, this.current.activeSMask, groupCtx, this.webGLContext);
              this.ctx.restore();
              copyCtxState(groupCtx, this.ctx);

              var deltaTransform = _util.Util.transform(this.current.activeSMask.startTransformInverse, groupCtx.mozCurrentTransform);

              this.ctx.transform.apply(this.ctx, deltaTransform);
            },
            save: function CanvasGraphics_save() {
              this.ctx.save();
              var old = this.current;
              this.stateStack.push(old);
              this.current = old.clone();
              this.current.resumeSMaskCtx = null;
            },
            restore: function CanvasGraphics_restore() {
              if (this.current.resumeSMaskCtx) {
                this.resumeSMaskGroup();
              }

              if (this.current.activeSMask !== null && (this.stateStack.length === 0 || this.stateStack[this.stateStack.length - 1].activeSMask !== this.current.activeSMask)) {
                this.endSMaskGroup();
              }

              if (this.stateStack.length !== 0) {
                this.current = this.stateStack.pop();
                this.ctx.restore();
                this.pendingClip = null;
                this._cachedGetSinglePixelWidth = null;
              }
            },
            transform: function CanvasGraphics_transform(a, b, c, d, e, f) {
              this.ctx.transform(a, b, c, d, e, f);
              this._cachedGetSinglePixelWidth = null;
            },
            constructPath: function CanvasGraphics_constructPath(ops, args) {
              var ctx = this.ctx;
              var current = this.current;
              var x = current.x,
                y = current.y;

              for (var i = 0, j = 0, ii = ops.length; i < ii; i++) {
                switch (ops[i] | 0) {
                  case _util.OPS.rectangle:
                    x = args[j++];
                    y = args[j++];
                    var width = args[j++];
                    var height = args[j++];

                    if (width === 0) {
                      width = this.getSinglePixelWidth();
                    }

                    if (height === 0) {
                      height = this.getSinglePixelWidth();
                    }

                    var xw = x + width;
                    var yh = y + height;
                    this.ctx.moveTo(x, y);
                    this.ctx.lineTo(xw, y);
                    this.ctx.lineTo(xw, yh);
                    this.ctx.lineTo(x, yh);
                    this.ctx.lineTo(x, y);
                    this.ctx.closePath();
                    break;

                  case _util.OPS.moveTo:
                    x = args[j++];
                    y = args[j++];
                    ctx.moveTo(x, y);
                    break;

                  case _util.OPS.lineTo:
                    x = args[j++];
                    y = args[j++];
                    ctx.lineTo(x, y);
                    break;

                  case _util.OPS.curveTo:
                    x = args[j + 4];
                    y = args[j + 5];
                    ctx.bezierCurveTo(args[j], args[j + 1], args[j + 2], args[j + 3], x, y);
                    j += 6;
                    break;

                  case _util.OPS.curveTo2:
                    ctx.bezierCurveTo(x, y, args[j], args[j + 1], args[j + 2], args[j + 3]);
                    x = args[j + 2];
                    y = args[j + 3];
                    j += 4;
                    break;

                  case _util.OPS.curveTo3:
                    x = args[j + 2];
                    y = args[j + 3];
                    ctx.bezierCurveTo(args[j], args[j + 1], x, y, x, y);
                    j += 4;
                    break;

                  case _util.OPS.closePath:
                    ctx.closePath();
                    break;
                }
              }

              current.setCurrentPoint(x, y);
            },
            closePath: function CanvasGraphics_closePath() {
              this.ctx.closePath();
            },
            stroke: function CanvasGraphics_stroke(consumePath) {
              consumePath = typeof consumePath !== 'undefined' ? consumePath : true;
              var ctx = this.ctx;
              var strokeColor = this.current.strokeColor;
              ctx.lineWidth = Math.max(this.getSinglePixelWidth() * MIN_WIDTH_FACTOR, this.current.lineWidth);
              ctx.globalAlpha = this.current.strokeAlpha;

              if (strokeColor && strokeColor.hasOwnProperty('type') && strokeColor.type === 'Pattern') {
                ctx.save();
                ctx.strokeStyle = strokeColor.getPattern(ctx, this);
                ctx.stroke();
                ctx.restore();
              } else {
                ctx.stroke();
              }

              if (consumePath) {
                this.consumePath();
              }

              ctx.globalAlpha = this.current.fillAlpha;
            },
            closeStroke: function CanvasGraphics_closeStroke() {
              this.closePath();
              this.stroke();
            },
            fill: function CanvasGraphics_fill(consumePath) {
              consumePath = typeof consumePath !== 'undefined' ? consumePath : true;
              var ctx = this.ctx;
              var fillColor = this.current.fillColor;
              var isPatternFill = this.current.patternFill;
              var needRestore = false;

              if (isPatternFill) {
                ctx.save();

                if (this.baseTransform) {
                  ctx.setTransform.apply(ctx, this.baseTransform);
                }

                ctx.fillStyle = fillColor.getPattern(ctx, this);
                needRestore = true;
              }

              if (this.pendingEOFill) {
                ctx.fill('evenodd');
                this.pendingEOFill = false;
              } else {
                ctx.fill();
              }

              if (needRestore) {
                ctx.restore();
              }

              if (consumePath) {
                this.consumePath();
              }
            },
            eoFill: function CanvasGraphics_eoFill() {
              this.pendingEOFill = true;
              this.fill();
            },
            fillStroke: function CanvasGraphics_fillStroke() {
              this.fill(false);
              this.stroke(false);
              this.consumePath();
            },
            eoFillStroke: function CanvasGraphics_eoFillStroke() {
              this.pendingEOFill = true;
              this.fillStroke();
            },
            closeFillStroke: function CanvasGraphics_closeFillStroke() {
              this.closePath();
              this.fillStroke();
            },
            closeEOFillStroke: function CanvasGraphics_closeEOFillStroke() {
              this.pendingEOFill = true;
              this.closePath();
              this.fillStroke();
            },
            endPath: function CanvasGraphics_endPath() {
              this.consumePath();
            },
            clip: function CanvasGraphics_clip() {
              this.pendingClip = NORMAL_CLIP;
            },
            eoClip: function CanvasGraphics_eoClip() {
              this.pendingClip = EO_CLIP;
            },
            beginText: function CanvasGraphics_beginText() {
              this.current.textMatrix = _util.IDENTITY_MATRIX;
              this.current.textMatrixScale = 1;
              this.current.x = this.current.lineX = 0;
              this.current.y = this.current.lineY = 0;
            },
            endText: function CanvasGraphics_endText() {
              var paths = this.pendingTextPaths;
              var ctx = this.ctx;

              if (paths === undefined) {
                ctx.beginPath();
                return;
              }

              ctx.save();
              ctx.beginPath();

              for (var i = 0; i < paths.length; i++) {
                var path = paths[i];
                ctx.setTransform.apply(ctx, path.transform);
                ctx.translate(path.x, path.y);
                path.addToPath(ctx, path.fontSize);
              }

              ctx.restore();
              ctx.clip();
              ctx.beginPath();
              delete this.pendingTextPaths;
            },
            setCharSpacing: function CanvasGraphics_setCharSpacing(spacing) {
              this.current.charSpacing = spacing;
            },
            setWordSpacing: function CanvasGraphics_setWordSpacing(spacing) {
              this.current.wordSpacing = spacing;
            },
            setHScale: function CanvasGraphics_setHScale(scale) {
              this.current.textHScale = scale / 100;
            },
            setLeading: function CanvasGraphics_setLeading(leading) {
              this.current.leading = -leading;
            },
            setFont: function CanvasGraphics_setFont(fontRefName, size) {
              var fontObj = this.commonObjs.get(fontRefName);
              var current = this.current;

              if (!fontObj) {
                throw new Error("Can't find font for ".concat(fontRefName));
              }

              current.fontMatrix = fontObj.fontMatrix ? fontObj.fontMatrix : _util.FONT_IDENTITY_MATRIX;

              if (current.fontMatrix[0] === 0 || current.fontMatrix[3] === 0) {
                (0, _util.warn)('Invalid font matrix for font ' + fontRefName);
              }

              if (size < 0) {
                size = -size;
                current.fontDirection = -1;
              } else {
                current.fontDirection = 1;
              }

              this.current.font = fontObj;
              this.current.fontSize = size;

              if (fontObj.isType3Font) {
                return;
              }

              var name = fontObj.loadedName || 'sans-serif';
              var bold = fontObj.black ? '900' : fontObj.bold ? 'bold' : 'normal';
              var italic = fontObj.italic ? 'italic' : 'normal';
              var typeface = "\"".concat(name, "\", ").concat(fontObj.fallbackName);
              var browserFontSize = size < MIN_FONT_SIZE ? MIN_FONT_SIZE : size > MAX_FONT_SIZE ? MAX_FONT_SIZE : size;
              this.current.fontSizeScale = size / browserFontSize;
              this.ctx.font = "".concat(italic, " ").concat(bold, " ").concat(browserFontSize, "px ").concat(typeface);
            },
            setTextRenderingMode: function CanvasGraphics_setTextRenderingMode(mode) {
              this.current.textRenderingMode = mode;
            },
            setTextRise: function CanvasGraphics_setTextRise(rise) {
              this.current.textRise = rise;
            },
            moveText: function CanvasGraphics_moveText(x, y) {
              this.current.x = this.current.lineX += x;
              this.current.y = this.current.lineY += y;
            },
            setLeadingMoveText: function CanvasGraphics_setLeadingMoveText(x, y) {
              this.setLeading(-y);
              this.moveText(x, y);
            },
            setTextMatrix: function CanvasGraphics_setTextMatrix(a, b, c, d, e, f) {
              this.current.textMatrix = [a, b, c, d, e, f];
              this.current.textMatrixScale = Math.sqrt(a * a + b * b);
              this.current.x = this.current.lineX = 0;
              this.current.y = this.current.lineY = 0;
            },
            nextLine: function CanvasGraphics_nextLine() {
              this.moveText(0, this.current.leading);
            },
            paintChar: function paintChar(character, x, y, patternTransform) {
              var ctx = this.ctx;
              var current = this.current;
              var font = current.font;
              var textRenderingMode = current.textRenderingMode;
              var fontSize = current.fontSize / current.fontSizeScale;
              var fillStrokeMode = textRenderingMode & _util.TextRenderingMode.FILL_STROKE_MASK;
              var isAddToPathSet = !!(textRenderingMode & _util.TextRenderingMode.ADD_TO_PATH_FLAG);
              var patternFill = current.patternFill && font.data;
              var addToPath;

              if (font.disableFontFace || isAddToPathSet || patternFill) {
                addToPath = font.getPathGenerator(this.commonObjs, character);
              }

              if (font.disableFontFace || patternFill) {
                ctx.save();
                ctx.translate(x, y);
                ctx.beginPath();
                addToPath(ctx, fontSize);

                if (patternTransform) {
                  ctx.setTransform.apply(ctx, patternTransform);
                }

                if (fillStrokeMode === _util.TextRenderingMode.FILL || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
                  ctx.fill();
                }

                if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
                  ctx.stroke();
                }

                ctx.restore();
              } else {
                if (fillStrokeMode === _util.TextRenderingMode.FILL || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
                  ctx.fillText(character, x, y);
                }

                if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
                  ctx.strokeText(character, x, y);
                }
              }

              if (isAddToPathSet) {
                var paths = this.pendingTextPaths || (this.pendingTextPaths = []);
                paths.push({
                  transform: ctx.mozCurrentTransform,
                  x: x,
                  y: y,
                  fontSize: fontSize,
                  addToPath: addToPath
                });
              }
            },

            get isFontSubpixelAAEnabled() {
              var ctx = this.canvasFactory.create(10, 10).context;
              ctx.scale(1.5, 1);
              ctx.fillText('I', 0, 10);
              var data = ctx.getImageData(0, 0, 10, 10).data;
              var enabled = false;

              for (var i = 3; i < data.length; i += 4) {
                if (data[i] > 0 && data[i] < 255) {
                  enabled = true;
                  break;
                }
              }

              return (0, _util.shadow)(this, 'isFontSubpixelAAEnabled', enabled);
            },

            showText: function CanvasGraphics_showText(glyphs) {
              var current = this.current;
              var font = current.font;

              if (font.isType3Font) {
                return this.showType3Text(glyphs);
              }

              var fontSize = current.fontSize;

              if (fontSize === 0) {
                return;
              }

              var ctx = this.ctx;
              var fontSizeScale = current.fontSizeScale;
              var charSpacing = current.charSpacing;
              var wordSpacing = current.wordSpacing;
              var fontDirection = current.fontDirection;
              var textHScale = current.textHScale * fontDirection;
              var glyphsLength = glyphs.length;
              var vertical = font.vertical;
              var spacingDir = vertical ? 1 : -1;
              var defaultVMetrics = font.defaultVMetrics;
              var widthAdvanceScale = fontSize * current.fontMatrix[0];
              var simpleFillText = current.textRenderingMode === _util.TextRenderingMode.FILL && !font.disableFontFace && !current.patternFill;
              ctx.save();
              var patternTransform;

              if (current.patternFill) {
                ctx.save();
                var pattern = current.fillColor.getPattern(ctx, this);
                patternTransform = ctx.mozCurrentTransform;
                ctx.restore();
                ctx.fillStyle = pattern;
              }

              ctx.transform.apply(ctx, current.textMatrix);
              ctx.translate(current.x, current.y + current.textRise);

              if (fontDirection > 0) {
                ctx.scale(textHScale, -1);
              } else {
                ctx.scale(textHScale, 1);
              }

              var lineWidth = current.lineWidth;
              var scale = current.textMatrixScale;

              if (scale === 0 || lineWidth === 0) {
                var fillStrokeMode = current.textRenderingMode & _util.TextRenderingMode.FILL_STROKE_MASK;

                if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
                  this._cachedGetSinglePixelWidth = null;
                  lineWidth = this.getSinglePixelWidth() * MIN_WIDTH_FACTOR;
                }
              } else {
                lineWidth /= scale;
              }

              if (fontSizeScale !== 1.0) {
                ctx.scale(fontSizeScale, fontSizeScale);
                lineWidth /= fontSizeScale;
              }

              ctx.lineWidth = lineWidth;
              var x = 0,
                i;

              for (i = 0; i < glyphsLength; ++i) {
                var glyph = glyphs[i];

                if ((0, _util.isNum)(glyph)) {
                  x += spacingDir * glyph * fontSize / 1000;
                  continue;
                }

                var restoreNeeded = false;
                var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing;
                var character = glyph.fontChar;
                var accent = glyph.accent;
                var scaledX, scaledY, scaledAccentX, scaledAccentY;
                var width = glyph.width;

                if (vertical) {
                  var vmetric, vx, vy;
                  vmetric = glyph.vmetric || defaultVMetrics;
                  vx = glyph.vmetric ? vmetric[1] : width * 0.5;
                  vx = -vx * widthAdvanceScale;
                  vy = vmetric[2] * widthAdvanceScale;
                  width = vmetric ? -vmetric[0] : width;
                  scaledX = vx / fontSizeScale;
                  scaledY = (x + vy) / fontSizeScale;
                } else {
                  scaledX = x / fontSizeScale;
                  scaledY = 0;
                }

                if (font.remeasure && width > 0) {
                  var measuredWidth = ctx.measureText(character).width * 1000 / fontSize * fontSizeScale;

                  if (width < measuredWidth && this.isFontSubpixelAAEnabled) {
                    var characterScaleX = width / measuredWidth;
                    restoreNeeded = true;
                    ctx.save();
                    ctx.scale(characterScaleX, 1);
                    scaledX /= characterScaleX;
                  } else if (width !== measuredWidth) {
                    scaledX += (width - measuredWidth) / 2000 * fontSize / fontSizeScale;
                  }
                }

                if (glyph.isInFont || font.missingFile) {
                  if (simpleFillText && !accent) {
                    ctx.fillText(character, scaledX, scaledY);
                  } else {
                    this.paintChar(character, scaledX, scaledY, patternTransform);

                    if (accent) {
                      scaledAccentX = scaledX + accent.offset.x / fontSizeScale;
                      scaledAccentY = scaledY - accent.offset.y / fontSizeScale;
                      this.paintChar(accent.fontChar, scaledAccentX, scaledAccentY, patternTransform);
                    }
                  }
                }

                var charWidth = width * widthAdvanceScale + spacing * fontDirection;
                x += charWidth;

                if (restoreNeeded) {
                  ctx.restore();
                }
              }

              if (vertical) {
                current.y -= x * textHScale;
              } else {
                current.x += x * textHScale;
              }

              ctx.restore();
            },
            showType3Text: function CanvasGraphics_showType3Text(glyphs) {
              var ctx = this.ctx;
              var current = this.current;
              var font = current.font;
              var fontSize = current.fontSize;
              var fontDirection = current.fontDirection;
              var spacingDir = font.vertical ? 1 : -1;
              var charSpacing = current.charSpacing;
              var wordSpacing = current.wordSpacing;
              var textHScale = current.textHScale * fontDirection;
              var fontMatrix = current.fontMatrix || _util.FONT_IDENTITY_MATRIX;
              var glyphsLength = glyphs.length;
              var isTextInvisible = current.textRenderingMode === _util.TextRenderingMode.INVISIBLE;
              var i, glyph, width, spacingLength;

              if (isTextInvisible || fontSize === 0) {
                return;
              }

              this._cachedGetSinglePixelWidth = null;
              ctx.save();
              ctx.transform.apply(ctx, current.textMatrix);
              ctx.translate(current.x, current.y);
              ctx.scale(textHScale, fontDirection);

              for (i = 0; i < glyphsLength; ++i) {
                glyph = glyphs[i];

                if ((0, _util.isNum)(glyph)) {
                  spacingLength = spacingDir * glyph * fontSize / 1000;
                  this.ctx.translate(spacingLength, 0);
                  current.x += spacingLength * textHScale;
                  continue;
                }

                var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing;
                var operatorList = font.charProcOperatorList[glyph.operatorListId];

                if (!operatorList) {
                  (0, _util.warn)("Type3 character \"".concat(glyph.operatorListId, "\" is not available."));
                  continue;
                }

                this.processingType3 = glyph;
                this.save();
                ctx.scale(fontSize, fontSize);
                ctx.transform.apply(ctx, fontMatrix);
                this.executeOperatorList(operatorList);
                this.restore();

                var transformed = _util.Util.applyTransform([glyph.width, 0], fontMatrix);

                width = transformed[0] * fontSize + spacing;
                ctx.translate(width, 0);
                current.x += width * textHScale;
              }

              ctx.restore();
              this.processingType3 = null;
            },
            setCharWidth: function CanvasGraphics_setCharWidth(xWidth, yWidth) {
            },
            setCharWidthAndBounds: function CanvasGraphics_setCharWidthAndBounds(xWidth, yWidth, llx, lly, urx, ury) {
              this.ctx.rect(llx, lly, urx - llx, ury - lly);
              this.clip();
              this.endPath();
            },
            getColorN_Pattern: function CanvasGraphics_getColorN_Pattern(IR) {
              var _this = this;

              var pattern;

              if (IR[0] === 'TilingPattern') {
                var color = IR[1];
                var baseTransform = this.baseTransform || this.ctx.mozCurrentTransform.slice();
                var canvasGraphicsFactory = {
                  createCanvasGraphics: function createCanvasGraphics(ctx) {
                    return new CanvasGraphics(ctx, _this.commonObjs, _this.objs, _this.canvasFactory, _this.webGLContext);
                  }
                };
                pattern = new _pattern_helper.TilingPattern(IR, color, this.ctx, canvasGraphicsFactory, baseTransform);
              } else {
                pattern = (0, _pattern_helper.getShadingPatternFromIR)(IR);
              }

              return pattern;
            },
            setStrokeColorN: function CanvasGraphics_setStrokeColorN() {
              this.current.strokeColor = this.getColorN_Pattern(arguments);
            },
            setFillColorN: function CanvasGraphics_setFillColorN() {
              this.current.fillColor = this.getColorN_Pattern(arguments);
              this.current.patternFill = true;
            },
            setStrokeRGBColor: function CanvasGraphics_setStrokeRGBColor(r, g, b) {
              var color = _util.Util.makeCssRgb(r, g, b);

              this.ctx.strokeStyle = color;
              this.current.strokeColor = color;
            },
            setFillRGBColor: function CanvasGraphics_setFillRGBColor(r, g, b) {
              var color = _util.Util.makeCssRgb(r, g, b);

              this.ctx.fillStyle = color;
              this.current.fillColor = color;
              this.current.patternFill = false;
            },
            shadingFill: function CanvasGraphics_shadingFill(patternIR) {
              var ctx = this.ctx;
              this.save();
              var pattern = (0, _pattern_helper.getShadingPatternFromIR)(patternIR);
              ctx.fillStyle = pattern.getPattern(ctx, this, true);
              var inv = ctx.mozCurrentTransformInverse;

              if (inv) {
                var canvas = ctx.canvas;
                var width = canvas.width;
                var height = canvas.height;

                var bl = _util.Util.applyTransform([0, 0], inv);

                var br = _util.Util.applyTransform([0, height], inv);

                var ul = _util.Util.applyTransform([width, 0], inv);

                var ur = _util.Util.applyTransform([width, height], inv);

                var x0 = Math.min(bl[0], br[0], ul[0], ur[0]);
                var y0 = Math.min(bl[1], br[1], ul[1], ur[1]);
                var x1 = Math.max(bl[0], br[0], ul[0], ur[0]);
                var y1 = Math.max(bl[1], br[1], ul[1], ur[1]);
                this.ctx.fillRect(x0, y0, x1 - x0, y1 - y0);
              } else {
                this.ctx.fillRect(-1e10, -1e10, 2e10, 2e10);
              }

              this.restore();
            },
            beginInlineImage: function CanvasGraphics_beginInlineImage() {
              (0, _util.unreachable)('Should not call beginInlineImage');
            },
            beginImageData: function CanvasGraphics_beginImageData() {
              (0, _util.unreachable)('Should not call beginImageData');
            },
            paintFormXObjectBegin: function CanvasGraphics_paintFormXObjectBegin(matrix, bbox) {
              this.save();
              this.baseTransformStack.push(this.baseTransform);

              if (Array.isArray(matrix) && matrix.length === 6) {
                this.transform.apply(this, matrix);
              }

              this.baseTransform = this.ctx.mozCurrentTransform;

              if (bbox) {
                var width = bbox[2] - bbox[0];
                var height = bbox[3] - bbox[1];
                this.ctx.rect(bbox[0], bbox[1], width, height);
                this.clip();
                this.endPath();
              }
            },
            paintFormXObjectEnd: function CanvasGraphics_paintFormXObjectEnd() {
              this.restore();
              this.baseTransform = this.baseTransformStack.pop();
            },
            beginGroup: function CanvasGraphics_beginGroup(group) {
              this.save();
              var currentCtx = this.ctx;

              if (!group.isolated) {
                (0, _util.info)('TODO: Support non-isolated groups.');
              }

              if (group.knockout) {
                (0, _util.warn)('Knockout groups not supported.');
              }

              var currentTransform = currentCtx.mozCurrentTransform;

              if (group.matrix) {
                currentCtx.transform.apply(currentCtx, group.matrix);
              }

              if (!group.bbox) {
                throw new Error('Bounding box is required.');
              }

              var bounds = _util.Util.getAxialAlignedBoundingBox(group.bbox, currentCtx.mozCurrentTransform);

              var canvasBounds = [0, 0, currentCtx.canvas.width, currentCtx.canvas.height];
              bounds = _util.Util.intersect(bounds, canvasBounds) || [0, 0, 0, 0];
              var offsetX = Math.floor(bounds[0]);
              var offsetY = Math.floor(bounds[1]);
              var drawnWidth = Math.max(Math.ceil(bounds[2]) - offsetX, 1);
              var drawnHeight = Math.max(Math.ceil(bounds[3]) - offsetY, 1);
              var scaleX = 1,
                scaleY = 1;

              if (drawnWidth > MAX_GROUP_SIZE) {
                scaleX = drawnWidth / MAX_GROUP_SIZE;
                drawnWidth = MAX_GROUP_SIZE;
              }

              if (drawnHeight > MAX_GROUP_SIZE) {
                scaleY = drawnHeight / MAX_GROUP_SIZE;
                drawnHeight = MAX_GROUP_SIZE;
              }

              var cacheId = 'groupAt' + this.groupLevel;

              if (group.smask) {
                cacheId += '_smask_' + this.smaskCounter++ % 2;
              }

              var scratchCanvas = this.cachedCanvases.getCanvas(cacheId, drawnWidth, drawnHeight, true);
              var groupCtx = scratchCanvas.context;
              groupCtx.scale(1 / scaleX, 1 / scaleY);
              groupCtx.translate(-offsetX, -offsetY);
              groupCtx.transform.apply(groupCtx, currentTransform);

              if (group.smask) {
                this.smaskStack.push({
                  canvas: scratchCanvas.canvas,
                  context: groupCtx,
                  offsetX: offsetX,
                  offsetY: offsetY,
                  scaleX: scaleX,
                  scaleY: scaleY,
                  subtype: group.smask.subtype,
                  backdrop: group.smask.backdrop,
                  transferMap: group.smask.transferMap || null,
                  startTransformInverse: null
                });
              } else {
                currentCtx.setTransform(1, 0, 0, 1, 0, 0);
                currentCtx.translate(offsetX, offsetY);
                currentCtx.scale(scaleX, scaleY);
              }

              copyCtxState(currentCtx, groupCtx);
              this.ctx = groupCtx;
              this.setGState([['BM', 'source-over'], ['ca', 1], ['CA', 1]]);
              this.groupStack.push(currentCtx);
              this.groupLevel++;
              this.current.activeSMask = null;
            },
            endGroup: function CanvasGraphics_endGroup(group) {
              this.groupLevel--;
              var groupCtx = this.ctx;
              this.ctx = this.groupStack.pop();

              if (this.ctx.imageSmoothingEnabled !== undefined) {
                this.ctx.imageSmoothingEnabled = false;
              } else {
                this.ctx.mozImageSmoothingEnabled = false;
              }

              if (group.smask) {
                this.tempSMask = this.smaskStack.pop();
              } else {
                this.ctx.drawImage(groupCtx.canvas, 0, 0);
              }

              this.restore();
            },
            beginAnnotations: function CanvasGraphics_beginAnnotations() {
              this.save();

              if (this.baseTransform) {
                this.ctx.setTransform.apply(this.ctx, this.baseTransform);
              }
            },
            endAnnotations: function CanvasGraphics_endAnnotations() {
              this.restore();
            },
            beginAnnotation: function CanvasGraphics_beginAnnotation(rect, transform, matrix) {
              this.save();
              resetCtxToDefault(this.ctx);
              this.current = new CanvasExtraState();

              if (Array.isArray(rect) && rect.length === 4) {
                var width = rect[2] - rect[0];
                var height = rect[3] - rect[1];
                this.ctx.rect(rect[0], rect[1], width, height);
                this.clip();
                this.endPath();
              }

              this.transform.apply(this, transform);
              this.transform.apply(this, matrix);
            },
            endAnnotation: function CanvasGraphics_endAnnotation() {
              this.restore();
            },
            paintJpegXObject: function CanvasGraphics_paintJpegXObject(objId, w, h) {
              var domImage = this.objs.get(objId);

              if (!domImage) {
                (0, _util.warn)('Dependent image isn\'t ready yet');
                return;
              }

              this.save();
              var ctx = this.ctx;
              ctx.scale(1 / w, -1 / h);
              ctx.drawImage(domImage, 0, 0, domImage.width, domImage.height, 0, -h, w, h);

              if (this.imageLayer) {
                var currentTransform = ctx.mozCurrentTransformInverse;
                var position = this.getCanvasPosition(0, 0);
                this.imageLayer.appendImage({
                  objId: objId,
                  left: position[0],
                  top: position[1],
                  width: w / currentTransform[0],
                  height: h / currentTransform[3]
                });
              }

              this.restore();
            },
            paintImageMaskXObject: function CanvasGraphics_paintImageMaskXObject(img) {
              var ctx = this.ctx;
              var width = img.width,
                height = img.height;
              var fillColor = this.current.fillColor;
              var isPatternFill = this.current.patternFill;
              var glyph = this.processingType3;

              if (COMPILE_TYPE3_GLYPHS && glyph && glyph.compiled === undefined) {
                if (width <= MAX_SIZE_TO_COMPILE && height <= MAX_SIZE_TO_COMPILE) {
                  glyph.compiled = compileType3Glyph({
                    data: img.data,
                    width: width,
                    height: height
                  });
                } else {
                  glyph.compiled = null;
                }
              }

              if (glyph && glyph.compiled) {
                glyph.compiled(ctx);
                return;
              }

              var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', width, height);
              var maskCtx = maskCanvas.context;
              maskCtx.save();
              putBinaryImageMask(maskCtx, img);
              maskCtx.globalCompositeOperation = 'source-in';
              maskCtx.fillStyle = isPatternFill ? fillColor.getPattern(maskCtx, this) : fillColor;
              maskCtx.fillRect(0, 0, width, height);
              maskCtx.restore();
              this.paintInlineImageXObject(maskCanvas.canvas);
            },
            paintImageMaskXObjectRepeat: function CanvasGraphics_paintImageMaskXObjectRepeat(imgData, scaleX, scaleY, positions) {
              var width = imgData.width;
              var height = imgData.height;
              var fillColor = this.current.fillColor;
              var isPatternFill = this.current.patternFill;
              var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', width, height);
              var maskCtx = maskCanvas.context;
              maskCtx.save();
              putBinaryImageMask(maskCtx, imgData);
              maskCtx.globalCompositeOperation = 'source-in';
              maskCtx.fillStyle = isPatternFill ? fillColor.getPattern(maskCtx, this) : fillColor;
              maskCtx.fillRect(0, 0, width, height);
              maskCtx.restore();
              var ctx = this.ctx;

              for (var i = 0, ii = positions.length; i < ii; i += 2) {
                ctx.save();
                ctx.transform(scaleX, 0, 0, scaleY, positions[i], positions[i + 1]);
                ctx.scale(1, -1);
                ctx.drawImage(maskCanvas.canvas, 0, 0, width, height, 0, -1, 1, 1);
                ctx.restore();
              }
            },
            paintImageMaskXObjectGroup: function CanvasGraphics_paintImageMaskXObjectGroup(images) {
              var ctx = this.ctx;
              var fillColor = this.current.fillColor;
              var isPatternFill = this.current.patternFill;

              for (var i = 0, ii = images.length; i < ii; i++) {
                var image = images[i];
                var width = image.width,
                  height = image.height;
                var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', width, height);
                var maskCtx = maskCanvas.context;
                maskCtx.save();
                putBinaryImageMask(maskCtx, image);
                maskCtx.globalCompositeOperation = 'source-in';
                maskCtx.fillStyle = isPatternFill ? fillColor.getPattern(maskCtx, this) : fillColor;
                maskCtx.fillRect(0, 0, width, height);
                maskCtx.restore();
                ctx.save();
                ctx.transform.apply(ctx, image.transform);
                ctx.scale(1, -1);
                ctx.drawImage(maskCanvas.canvas, 0, 0, width, height, 0, -1, 1, 1);
                ctx.restore();
              }
            },
            paintImageXObject: function CanvasGraphics_paintImageXObject(objId) {
              var imgData = this.objs.get(objId);

              if (!imgData) {
                (0, _util.warn)('Dependent image isn\'t ready yet');
                return;
              }

              this.paintInlineImageXObject(imgData);
            },
            paintImageXObjectRepeat: function CanvasGraphics_paintImageXObjectRepeat(objId, scaleX, scaleY, positions) {
              var imgData = this.objs.get(objId);

              if (!imgData) {
                (0, _util.warn)('Dependent image isn\'t ready yet');
                return;
              }

              var width = imgData.width;
              var height = imgData.height;
              var map = [];

              for (var i = 0, ii = positions.length; i < ii; i += 2) {
                map.push({
                  transform: [scaleX, 0, 0, scaleY, positions[i], positions[i + 1]],
                  x: 0,
                  y: 0,
                  w: width,
                  h: height
                });
              }

              this.paintInlineImageXObjectGroup(imgData, map);
            },
            paintInlineImageXObject: function CanvasGraphics_paintInlineImageXObject(imgData) {
              var width = imgData.width;
              var height = imgData.height;
              var ctx = this.ctx;
              this.save();
              ctx.scale(1 / width, -1 / height);
              var currentTransform = ctx.mozCurrentTransformInverse;
              var a = currentTransform[0],
                b = currentTransform[1];
              var widthScale = Math.max(Math.sqrt(a * a + b * b), 1);
              var c = currentTransform[2],
                d = currentTransform[3];
              var heightScale = Math.max(Math.sqrt(c * c + d * d), 1);
              var imgToPaint, tmpCanvas;

              if (typeof HTMLElement === 'function' && imgData instanceof HTMLElement || !imgData.data) {
                imgToPaint = imgData;
              } else {
                tmpCanvas = this.cachedCanvases.getCanvas('inlineImage', width, height);
                var tmpCtx = tmpCanvas.context;
                putBinaryImageData(tmpCtx, imgData);
                imgToPaint = tmpCanvas.canvas;
              }

              var paintWidth = width,
                paintHeight = height;
              var tmpCanvasId = 'prescale1';

              while (widthScale > 2 && paintWidth > 1 || heightScale > 2 && paintHeight > 1) {
                var newWidth = paintWidth,
                  newHeight = paintHeight;

                if (widthScale > 2 && paintWidth > 1) {
                  newWidth = Math.ceil(paintWidth / 2);
                  widthScale /= paintWidth / newWidth;
                }

                if (heightScale > 2 && paintHeight > 1) {
                  newHeight = Math.ceil(paintHeight / 2);
                  heightScale /= paintHeight / newHeight;
                }

                tmpCanvas = this.cachedCanvases.getCanvas(tmpCanvasId, newWidth, newHeight);
                tmpCtx = tmpCanvas.context;
                tmpCtx.clearRect(0, 0, newWidth, newHeight);
                tmpCtx.drawImage(imgToPaint, 0, 0, paintWidth, paintHeight, 0, 0, newWidth, newHeight);
                imgToPaint = tmpCanvas.canvas;
                paintWidth = newWidth;
                paintHeight = newHeight;
                tmpCanvasId = tmpCanvasId === 'prescale1' ? 'prescale2' : 'prescale1';
              }

              ctx.drawImage(imgToPaint, 0, 0, paintWidth, paintHeight, 0, -height, width, height);

              if (this.imageLayer) {
                var position = this.getCanvasPosition(0, -height);
                this.imageLayer.appendImage({
                  imgData: imgData,
                  left: position[0],
                  top: position[1],
                  width: width / currentTransform[0],
                  height: height / currentTransform[3]
                });
              }

              this.restore();
            },
            paintInlineImageXObjectGroup: function CanvasGraphics_paintInlineImageXObjectGroup(imgData, map) {
              var ctx = this.ctx;
              var w = imgData.width;
              var h = imgData.height;
              var tmpCanvas = this.cachedCanvases.getCanvas('inlineImage', w, h);
              var tmpCtx = tmpCanvas.context;
              putBinaryImageData(tmpCtx, imgData);

              for (var i = 0, ii = map.length; i < ii; i++) {
                var entry = map[i];
                ctx.save();
                ctx.transform.apply(ctx, entry.transform);
                ctx.scale(1, -1);
                ctx.drawImage(tmpCanvas.canvas, entry.x, entry.y, entry.w, entry.h, 0, -1, 1, 1);

                if (this.imageLayer) {
                  var position = this.getCanvasPosition(entry.x, entry.y);
                  this.imageLayer.appendImage({
                    imgData: imgData,
                    left: position[0],
                    top: position[1],
                    width: w,
                    height: h
                  });
                }

                ctx.restore();
              }
            },
            paintSolidColorImageMask: function CanvasGraphics_paintSolidColorImageMask() {
              this.ctx.fillRect(0, 0, 1, 1);
            },
            paintXObject: function CanvasGraphics_paintXObject() {
              (0, _util.warn)('Unsupported \'paintXObject\' command.');
            },
            markPoint: function CanvasGraphics_markPoint(tag) {
            },
            markPointProps: function CanvasGraphics_markPointProps(tag, properties) {
            },
            beginMarkedContent: function CanvasGraphics_beginMarkedContent(tag) {
            },
            beginMarkedContentProps: function CanvasGraphics_beginMarkedContentProps(tag, properties) {
            },
            endMarkedContent: function CanvasGraphics_endMarkedContent() {
            },
            beginCompat: function CanvasGraphics_beginCompat() {
            },
            endCompat: function CanvasGraphics_endCompat() {
            },
            consumePath: function CanvasGraphics_consumePath() {
              var ctx = this.ctx;

              if (this.pendingClip) {
                if (this.pendingClip === EO_CLIP) {
                  ctx.clip('evenodd');
                } else {
                  ctx.clip();
                }

                this.pendingClip = null;
              }

              ctx.beginPath();
            },
            getSinglePixelWidth: function getSinglePixelWidth(scale) {
              if (this._cachedGetSinglePixelWidth === null) {
                var inverse = this.ctx.mozCurrentTransformInverse;
                this._cachedGetSinglePixelWidth = Math.sqrt(Math.max(inverse[0] * inverse[0] + inverse[1] * inverse[1], inverse[2] * inverse[2] + inverse[3] * inverse[3]));
              }

              return this._cachedGetSinglePixelWidth;
            },
            getCanvasPosition: function CanvasGraphics_getCanvasPosition(x, y) {
              var transform = this.ctx.mozCurrentTransform;
              return [transform[0] * x + transform[2] * y + transform[4], transform[1] * x + transform[3] * y + transform[5]];
            }
          };

          for (var op in _util.OPS) {
            CanvasGraphics.prototype[_util.OPS[op]] = CanvasGraphics.prototype[op];
          }

          return CanvasGraphics;
        }();

        exports.CanvasGraphics = CanvasGraphics;

        /***/
      }),
      /* 155 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.getShadingPatternFromIR = getShadingPatternFromIR;
        exports.TilingPattern = void 0;

        var _util = __w_pdfjs_require__(1);

        var ShadingIRs = {};
        ShadingIRs.RadialAxial = {
          fromIR: function RadialAxial_fromIR(raw) {
            var type = raw[1];
            var colorStops = raw[2];
            var p0 = raw[3];
            var p1 = raw[4];
            var r0 = raw[5];
            var r1 = raw[6];
            return {
              type: 'Pattern',
              getPattern: function RadialAxial_getPattern(ctx) {
                var grad;

                if (type === 'axial') {
                  grad = ctx.createLinearGradient(p0[0], p0[1], p1[0], p1[1]);
                } else if (type === 'radial') {
                  grad = ctx.createRadialGradient(p0[0], p0[1], r0, p1[0], p1[1], r1);
                }

                for (var i = 0, ii = colorStops.length; i < ii; ++i) {
                  var c = colorStops[i];
                  grad.addColorStop(c[0], c[1]);
                }

                return grad;
              }
            };
          }
        };

        var createMeshCanvas = function createMeshCanvasClosure() {
          function drawTriangle(data, context, p1, p2, p3, c1, c2, c3) {
            var coords = context.coords,
              colors = context.colors;
            var bytes = data.data,
              rowSize = data.width * 4;
            var tmp;

            if (coords[p1 + 1] > coords[p2 + 1]) {
              tmp = p1;
              p1 = p2;
              p2 = tmp;
              tmp = c1;
              c1 = c2;
              c2 = tmp;
            }

            if (coords[p2 + 1] > coords[p3 + 1]) {
              tmp = p2;
              p2 = p3;
              p3 = tmp;
              tmp = c2;
              c2 = c3;
              c3 = tmp;
            }

            if (coords[p1 + 1] > coords[p2 + 1]) {
              tmp = p1;
              p1 = p2;
              p2 = tmp;
              tmp = c1;
              c1 = c2;
              c2 = tmp;
            }

            var x1 = (coords[p1] + context.offsetX) * context.scaleX;
            var y1 = (coords[p1 + 1] + context.offsetY) * context.scaleY;
            var x2 = (coords[p2] + context.offsetX) * context.scaleX;
            var y2 = (coords[p2 + 1] + context.offsetY) * context.scaleY;
            var x3 = (coords[p3] + context.offsetX) * context.scaleX;
            var y3 = (coords[p3 + 1] + context.offsetY) * context.scaleY;

            if (y1 >= y3) {
              return;
            }

            var c1r = colors[c1],
              c1g = colors[c1 + 1],
              c1b = colors[c1 + 2];
            var c2r = colors[c2],
              c2g = colors[c2 + 1],
              c2b = colors[c2 + 2];
            var c3r = colors[c3],
              c3g = colors[c3 + 1],
              c3b = colors[c3 + 2];
            var minY = Math.round(y1),
              maxY = Math.round(y3);
            var xa, car, cag, cab;
            var xb, cbr, cbg, cbb;
            var k;

            for (var y = minY; y <= maxY; y++) {
              if (y < y2) {
                k = y < y1 ? 0 : y1 === y2 ? 1 : (y1 - y) / (y1 - y2);
                xa = x1 - (x1 - x2) * k;
                car = c1r - (c1r - c2r) * k;
                cag = c1g - (c1g - c2g) * k;
                cab = c1b - (c1b - c2b) * k;
              } else {
                k = y > y3 ? 1 : y2 === y3 ? 0 : (y2 - y) / (y2 - y3);
                xa = x2 - (x2 - x3) * k;
                car = c2r - (c2r - c3r) * k;
                cag = c2g - (c2g - c3g) * k;
                cab = c2b - (c2b - c3b) * k;
              }

              k = y < y1 ? 0 : y > y3 ? 1 : (y1 - y) / (y1 - y3);
              xb = x1 - (x1 - x3) * k;
              cbr = c1r - (c1r - c3r) * k;
              cbg = c1g - (c1g - c3g) * k;
              cbb = c1b - (c1b - c3b) * k;
              var x1_ = Math.round(Math.min(xa, xb));
              var x2_ = Math.round(Math.max(xa, xb));
              var j = rowSize * y + x1_ * 4;

              for (var x = x1_; x <= x2_; x++) {
                k = (xa - x) / (xa - xb);
                k = k < 0 ? 0 : k > 1 ? 1 : k;
                bytes[j++] = car - (car - cbr) * k | 0;
                bytes[j++] = cag - (cag - cbg) * k | 0;
                bytes[j++] = cab - (cab - cbb) * k | 0;
                bytes[j++] = 255;
              }
            }
          }

          function drawFigure(data, figure, context) {
            var ps = figure.coords;
            var cs = figure.colors;
            var i, ii;

            switch (figure.type) {
              case 'lattice':
                var verticesPerRow = figure.verticesPerRow;
                var rows = Math.floor(ps.length / verticesPerRow) - 1;
                var cols = verticesPerRow - 1;

                for (i = 0; i < rows; i++) {
                  var q = i * verticesPerRow;

                  for (var j = 0; j < cols; j++, q++) {
                    drawTriangle(data, context, ps[q], ps[q + 1], ps[q + verticesPerRow], cs[q], cs[q + 1], cs[q + verticesPerRow]);
                    drawTriangle(data, context, ps[q + verticesPerRow + 1], ps[q + 1], ps[q + verticesPerRow], cs[q + verticesPerRow + 1], cs[q + 1], cs[q + verticesPerRow]);
                  }
                }

                break;

              case 'triangles':
                for (i = 0, ii = ps.length; i < ii; i += 3) {
                  drawTriangle(data, context, ps[i], ps[i + 1], ps[i + 2], cs[i], cs[i + 1], cs[i + 2]);
                }

                break;

              default:
                throw new Error('illegal figure');
            }
          }

          function createMeshCanvas(bounds, combinesScale, coords, colors, figures, backgroundColor, cachedCanvases, webGLContext) {
            var EXPECTED_SCALE = 1.1;
            var MAX_PATTERN_SIZE = 3000;
            var BORDER_SIZE = 2;
            var offsetX = Math.floor(bounds[0]);
            var offsetY = Math.floor(bounds[1]);
            var boundsWidth = Math.ceil(bounds[2]) - offsetX;
            var boundsHeight = Math.ceil(bounds[3]) - offsetY;
            var width = Math.min(Math.ceil(Math.abs(boundsWidth * combinesScale[0] * EXPECTED_SCALE)), MAX_PATTERN_SIZE);
            var height = Math.min(Math.ceil(Math.abs(boundsHeight * combinesScale[1] * EXPECTED_SCALE)), MAX_PATTERN_SIZE);
            var scaleX = boundsWidth / width;
            var scaleY = boundsHeight / height;
            var context = {
              coords: coords,
              colors: colors,
              offsetX: -offsetX,
              offsetY: -offsetY,
              scaleX: 1 / scaleX,
              scaleY: 1 / scaleY
            };
            var paddedWidth = width + BORDER_SIZE * 2;
            var paddedHeight = height + BORDER_SIZE * 2;
            var canvas, tmpCanvas, i, ii;

            if (webGLContext.isEnabled) {
              canvas = webGLContext.drawFigures({
                width: width,
                height: height,
                backgroundColor: backgroundColor,
                figures: figures,
                context: context
              });
              tmpCanvas = cachedCanvases.getCanvas('mesh', paddedWidth, paddedHeight, false);
              tmpCanvas.context.drawImage(canvas, BORDER_SIZE, BORDER_SIZE);
              canvas = tmpCanvas.canvas;
            } else {
              tmpCanvas = cachedCanvases.getCanvas('mesh', paddedWidth, paddedHeight, false);
              var tmpCtx = tmpCanvas.context;
              var data = tmpCtx.createImageData(width, height);

              if (backgroundColor) {
                var bytes = data.data;

                for (i = 0, ii = bytes.length; i < ii; i += 4) {
                  bytes[i] = backgroundColor[0];
                  bytes[i + 1] = backgroundColor[1];
                  bytes[i + 2] = backgroundColor[2];
                  bytes[i + 3] = 255;
                }
              }

              for (i = 0; i < figures.length; i++) {
                drawFigure(data, figures[i], context);
              }

              tmpCtx.putImageData(data, BORDER_SIZE, BORDER_SIZE);
              canvas = tmpCanvas.canvas;
            }

            return {
              canvas: canvas,
              offsetX: offsetX - BORDER_SIZE * scaleX,
              offsetY: offsetY - BORDER_SIZE * scaleY,
              scaleX: scaleX,
              scaleY: scaleY
            };
          }

          return createMeshCanvas;
        }();

        ShadingIRs.Mesh = {
          fromIR: function Mesh_fromIR(raw) {
            var coords = raw[2];
            var colors = raw[3];
            var figures = raw[4];
            var bounds = raw[5];
            var matrix = raw[6];
            var background = raw[8];
            return {
              type: 'Pattern',
              getPattern: function Mesh_getPattern(ctx, owner, shadingFill) {
                var scale;

                if (shadingFill) {
                  scale = _util.Util.singularValueDecompose2dScale(ctx.mozCurrentTransform);
                } else {
                  scale = _util.Util.singularValueDecompose2dScale(owner.baseTransform);

                  if (matrix) {
                    var matrixScale = _util.Util.singularValueDecompose2dScale(matrix);

                    scale = [scale[0] * matrixScale[0], scale[1] * matrixScale[1]];
                  }
                }

                var temporaryPatternCanvas = createMeshCanvas(bounds, scale, coords, colors, figures, shadingFill ? null : background, owner.cachedCanvases, owner.webGLContext);

                if (!shadingFill) {
                  ctx.setTransform.apply(ctx, owner.baseTransform);

                  if (matrix) {
                    ctx.transform.apply(ctx, matrix);
                  }
                }

                ctx.translate(temporaryPatternCanvas.offsetX, temporaryPatternCanvas.offsetY);
                ctx.scale(temporaryPatternCanvas.scaleX, temporaryPatternCanvas.scaleY);
                return ctx.createPattern(temporaryPatternCanvas.canvas, 'no-repeat');
              }
            };
          }
        };
        ShadingIRs.Dummy = {
          fromIR: function Dummy_fromIR() {
            return {
              type: 'Pattern',
              getPattern: function Dummy_fromIR_getPattern() {
                return 'hotpink';
              }
            };
          }
        };

        function getShadingPatternFromIR(raw) {
          var shadingIR = ShadingIRs[raw[0]];

          if (!shadingIR) {
            throw new Error("Unknown IR type: ".concat(raw[0]));
          }

          return shadingIR.fromIR(raw);
        }

        var TilingPattern = function TilingPatternClosure() {
          var PaintType = {
            COLORED: 1,
            UNCOLORED: 2
          };
          var MAX_PATTERN_SIZE = 3000;

          function TilingPattern(IR, color, ctx, canvasGraphicsFactory, baseTransform) {
            this.operatorList = IR[2];
            this.matrix = IR[3] || [1, 0, 0, 1, 0, 0];
            this.bbox = IR[4];
            this.xstep = IR[5];
            this.ystep = IR[6];
            this.paintType = IR[7];
            this.tilingType = IR[8];
            this.color = color;
            this.canvasGraphicsFactory = canvasGraphicsFactory;
            this.baseTransform = baseTransform;
            this.type = 'Pattern';
            this.ctx = ctx;
          }

          TilingPattern.prototype = {
            createPatternCanvas: function TilinPattern_createPatternCanvas(owner) {
              var operatorList = this.operatorList;
              var bbox = this.bbox;
              var xstep = this.xstep;
              var ystep = this.ystep;
              var paintType = this.paintType;
              var tilingType = this.tilingType;
              var color = this.color;
              var canvasGraphicsFactory = this.canvasGraphicsFactory;
              (0, _util.info)('TilingType: ' + tilingType);
              var x0 = bbox[0],
                y0 = bbox[1],
                x1 = bbox[2],
                y1 = bbox[3];
              var topLeft = [x0, y0];
              var botRight = [x0 + xstep, y0 + ystep];
              var width = botRight[0] - topLeft[0];
              var height = botRight[1] - topLeft[1];

              var matrixScale = _util.Util.singularValueDecompose2dScale(this.matrix);

              var curMatrixScale = _util.Util.singularValueDecompose2dScale(this.baseTransform);

              var combinedScale = [matrixScale[0] * curMatrixScale[0], matrixScale[1] * curMatrixScale[1]];
              width = Math.min(Math.ceil(Math.abs(width * combinedScale[0])), MAX_PATTERN_SIZE);
              height = Math.min(Math.ceil(Math.abs(height * combinedScale[1])), MAX_PATTERN_SIZE);
              var tmpCanvas = owner.cachedCanvases.getCanvas('pattern', width, height, true);
              var tmpCtx = tmpCanvas.context;
              var graphics = canvasGraphicsFactory.createCanvasGraphics(tmpCtx);
              graphics.groupLevel = owner.groupLevel;
              this.setFillAndStrokeStyleToContext(graphics, paintType, color);
              this.setScale(width, height, xstep, ystep);
              this.transformToScale(graphics);
              var tmpTranslate = [1, 0, 0, 1, -topLeft[0], -topLeft[1]];
              graphics.transform.apply(graphics, tmpTranslate);
              this.clipBbox(graphics, bbox, x0, y0, x1, y1);
              graphics.executeOperatorList(operatorList);
              return tmpCanvas.canvas;
            },
            setScale: function TilingPattern_setScale(width, height, xstep, ystep) {
              this.scale = [width / xstep, height / ystep];
            },
            transformToScale: function TilingPattern_transformToScale(graphics) {
              var scale = this.scale;
              var tmpScale = [scale[0], 0, 0, scale[1], 0, 0];
              graphics.transform.apply(graphics, tmpScale);
            },
            scaleToContext: function TilingPattern_scaleToContext() {
              var scale = this.scale;
              this.ctx.scale(1 / scale[0], 1 / scale[1]);
            },
            clipBbox: function clipBbox(graphics, bbox, x0, y0, x1, y1) {
              if (Array.isArray(bbox) && bbox.length === 4) {
                var bboxWidth = x1 - x0;
                var bboxHeight = y1 - y0;
                graphics.ctx.rect(x0, y0, bboxWidth, bboxHeight);
                graphics.clip();
                graphics.endPath();
              }
            },
            setFillAndStrokeStyleToContext: function setFillAndStrokeStyleToContext(graphics, paintType, color) {
              var context = graphics.ctx,
                current = graphics.current;

              switch (paintType) {
                case PaintType.COLORED:
                  var ctx = this.ctx;
                  context.fillStyle = ctx.fillStyle;
                  context.strokeStyle = ctx.strokeStyle;
                  current.fillColor = ctx.fillStyle;
                  current.strokeColor = ctx.strokeStyle;
                  break;

                case PaintType.UNCOLORED:
                  var cssColor = _util.Util.makeCssRgb(color[0], color[1], color[2]);

                  context.fillStyle = cssColor;
                  context.strokeStyle = cssColor;
                  current.fillColor = cssColor;
                  current.strokeColor = cssColor;
                  break;

                default:
                  throw new _util.FormatError("Unsupported paint type: ".concat(paintType));
              }
            },
            getPattern: function TilingPattern_getPattern(ctx, owner) {
              var temporaryPatternCanvas = this.createPatternCanvas(owner);
              ctx = this.ctx;
              ctx.setTransform.apply(ctx, this.baseTransform);
              ctx.transform.apply(ctx, this.matrix);
              this.scaleToContext();
              return ctx.createPattern(temporaryPatternCanvas, 'repeat');
            }
          };
          return TilingPattern;
        }();

        exports.TilingPattern = TilingPattern;

        /***/
      }),
      /* 156 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.GlobalWorkerOptions = void 0;
        var GlobalWorkerOptions = Object.create(null);
        exports.GlobalWorkerOptions = GlobalWorkerOptions;
        GlobalWorkerOptions.workerPort = GlobalWorkerOptions.workerPort === undefined ? null : GlobalWorkerOptions.workerPort;
        GlobalWorkerOptions.workerSrc = GlobalWorkerOptions.workerSrc === undefined ? '' : GlobalWorkerOptions.workerSrc;

        /***/
      }),
      /* 157 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.MessageHandler = MessageHandler;

        var _regenerator = _interopRequireDefault(__w_pdfjs_require__(147));

        var _util = __w_pdfjs_require__(1);

        function _interopRequireDefault(obj) {
          return obj && obj.__esModule ? obj : {default: obj};
        }

        function _typeof(obj) {
          if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof = function _typeof(obj) {
              return typeof obj;
            };
          } else {
            _typeof = function _typeof(obj) {
              return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
          }
          return _typeof(obj);
        }

        function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
          try {
            var info = gen[key](arg);
            var value = info.value;
          } catch (error) {
            reject(error);
            return;
          }
          if (info.done) {
            resolve(value);
          } else {
            Promise.resolve(value).then(_next, _throw);
          }
        }

        function _asyncToGenerator(fn) {
          return function () {
            var self = this, args = arguments;
            return new Promise(function (resolve, reject) {
              var gen = fn.apply(self, args);

              function _next(value) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
              }

              function _throw(err) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
              }

              _next(undefined);
            });
          };
        }

        function resolveCall(_x, _x2) {
          return _resolveCall.apply(this, arguments);
        }

        function _resolveCall() {
          _resolveCall = _asyncToGenerator(
            /*#__PURE__*/
            _regenerator.default.mark(function _callee(fn, args) {
              var thisArg,
                _args = arguments;
              return _regenerator.default.wrap(function _callee$(_context) {
                while (1) {
                  switch (_context.prev = _context.next) {
                    case 0:
                      thisArg = _args.length > 2 && _args[2] !== undefined ? _args[2] : null;

                      if (fn) {
                        _context.next = 3;
                        break;
                      }

                      return _context.abrupt("return");

                    case 3:
                      return _context.abrupt("return", fn.apply(thisArg, args));

                    case 4:
                    case "end":
                      return _context.stop();
                  }
                }
              }, _callee, this);
            }));
          return _resolveCall.apply(this, arguments);
        }

        function wrapReason(reason) {
          if (_typeof(reason) !== 'object') {
            return reason;
          }

          switch (reason.name) {
            case 'AbortException':
              return new _util.AbortException(reason.message);

            case 'MissingPDFException':
              return new _util.MissingPDFException(reason.message);

            case 'UnexpectedResponseException':
              return new _util.UnexpectedResponseException(reason.message, reason.status);

            default:
              return new _util.UnknownErrorException(reason.message, reason.details);
          }
        }

        function makeReasonSerializable(reason) {
          if (!(reason instanceof Error) || reason instanceof _util.AbortException || reason instanceof _util.MissingPDFException || reason instanceof _util.UnexpectedResponseException || reason instanceof _util.UnknownErrorException) {
            return reason;
          }

          return new _util.UnknownErrorException(reason.message, reason.toString());
        }

        function resolveOrReject(capability, success, reason) {
          if (success) {
            capability.resolve();
          } else {
            capability.reject(reason);
          }
        }

        function finalize(promise) {
          return Promise.resolve(promise).catch(function () {
          });
        }

        function MessageHandler(sourceName, targetName, comObj) {
          var _this = this;

          this.sourceName = sourceName;
          this.targetName = targetName;
          this.comObj = comObj;
          this.callbackId = 1;
          this.streamId = 1;
          this.postMessageTransfers = true;
          this.streamSinks = Object.create(null);
          this.streamControllers = Object.create(null);
          var callbacksCapabilities = this.callbacksCapabilities = Object.create(null);
          var ah = this.actionHandler = Object.create(null);

          this._onComObjOnMessage = function (event) {
            var data = event.data;

            if (data.targetName !== _this.sourceName) {
              return;
            }

            if (data.stream) {
              _this._processStreamMessage(data);
            } else if (data.isReply) {
              var callbackId = data.callbackId;

              if (data.callbackId in callbacksCapabilities) {
                var callback = callbacksCapabilities[callbackId];
                delete callbacksCapabilities[callbackId];

                if ('error' in data) {
                  callback.reject(wrapReason(data.error));
                } else {
                  callback.resolve(data.data);
                }
              } else {
                throw new Error("Cannot resolve callback ".concat(callbackId));
              }
            } else if (data.action in ah) {
              var action = ah[data.action];

              if (data.callbackId) {
                var _sourceName = _this.sourceName;
                var _targetName = data.sourceName;
                Promise.resolve().then(function () {
                  return action[0].call(action[1], data.data);
                }).then(function (result) {
                  comObj.postMessage({
                    sourceName: _sourceName,
                    targetName: _targetName,
                    isReply: true,
                    callbackId: data.callbackId,
                    data: result
                  });
                }, function (reason) {
                  comObj.postMessage({
                    sourceName: _sourceName,
                    targetName: _targetName,
                    isReply: true,
                    callbackId: data.callbackId,
                    error: makeReasonSerializable(reason)
                  });
                });
              } else if (data.streamId) {
                _this._createStreamSink(data);
              } else {
                action[0].call(action[1], data.data);
              }
            } else {
              throw new Error("Unknown action from worker: ".concat(data.action));
            }
          };

          comObj.addEventListener('message', this._onComObjOnMessage);
        }

        MessageHandler.prototype = {
          on: function on(actionName, handler, scope) {
            var ah = this.actionHandler;

            if (ah[actionName]) {
              throw new Error("There is already an actionName called \"".concat(actionName, "\""));
            }

            ah[actionName] = [handler, scope];
          },
          send: function send(actionName, data, transfers) {
            var message = {
              sourceName: this.sourceName,
              targetName: this.targetName,
              action: actionName,
              data: data
            };
            this.postMessage(message, transfers);
          },
          sendWithPromise: function sendWithPromise(actionName, data, transfers) {
            var callbackId = this.callbackId++;
            var message = {
              sourceName: this.sourceName,
              targetName: this.targetName,
              action: actionName,
              data: data,
              callbackId: callbackId
            };
            var capability = (0, _util.createPromiseCapability)();
            this.callbacksCapabilities[callbackId] = capability;

            try {
              this.postMessage(message, transfers);
            } catch (e) {
              capability.reject(e);
            }

            return capability.promise;
          },
          sendWithStream: function sendWithStream(actionName, data, queueingStrategy, transfers) {
            var _this2 = this;

            var streamId = this.streamId++;
            var sourceName = this.sourceName;
            var targetName = this.targetName;
            return new _util.ReadableStream({
              start: function start(controller) {
                var startCapability = (0, _util.createPromiseCapability)();
                _this2.streamControllers[streamId] = {
                  controller: controller,
                  startCall: startCapability,
                  isClosed: false
                };

                _this2.postMessage({
                  sourceName: sourceName,
                  targetName: targetName,
                  action: actionName,
                  streamId: streamId,
                  data: data,
                  desiredSize: controller.desiredSize
                });

                return startCapability.promise;
              },
              pull: function pull(controller) {
                var pullCapability = (0, _util.createPromiseCapability)();
                _this2.streamControllers[streamId].pullCall = pullCapability;

                _this2.postMessage({
                  sourceName: sourceName,
                  targetName: targetName,
                  stream: 'pull',
                  streamId: streamId,
                  desiredSize: controller.desiredSize
                });

                return pullCapability.promise;
              },
              cancel: function cancel(reason) {
                var cancelCapability = (0, _util.createPromiseCapability)();
                _this2.streamControllers[streamId].cancelCall = cancelCapability;
                _this2.streamControllers[streamId].isClosed = true;

                _this2.postMessage({
                  sourceName: sourceName,
                  targetName: targetName,
                  stream: 'cancel',
                  reason: reason,
                  streamId: streamId
                });

                return cancelCapability.promise;
              }
            }, queueingStrategy);
          },
          _createStreamSink: function _createStreamSink(data) {
            var _this3 = this;

            var self = this;
            var action = this.actionHandler[data.action];
            var streamId = data.streamId;
            var desiredSize = data.desiredSize;
            var sourceName = this.sourceName;
            var targetName = data.sourceName;
            var capability = (0, _util.createPromiseCapability)();

            var sendStreamRequest = function sendStreamRequest(_ref) {
              var stream = _ref.stream,
                chunk = _ref.chunk,
                transfers = _ref.transfers,
                success = _ref.success,
                reason = _ref.reason;

              _this3.postMessage({
                sourceName: sourceName,
                targetName: targetName,
                stream: stream,
                streamId: streamId,
                chunk: chunk,
                success: success,
                reason: reason
              }, transfers);
            };

            var streamSink = {
              enqueue: function enqueue(chunk) {
                var size = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
                var transfers = arguments.length > 2 ? arguments[2] : undefined;

                if (this.isCancelled) {
                  return;
                }

                var lastDesiredSize = this.desiredSize;
                this.desiredSize -= size;

                if (lastDesiredSize > 0 && this.desiredSize <= 0) {
                  this.sinkCapability = (0, _util.createPromiseCapability)();
                  this.ready = this.sinkCapability.promise;
                }

                sendStreamRequest({
                  stream: 'enqueue',
                  chunk: chunk,
                  transfers: transfers
                });
              },
              close: function close() {
                if (this.isCancelled) {
                  return;
                }

                this.isCancelled = true;
                sendStreamRequest({
                  stream: 'close'
                });
                delete self.streamSinks[streamId];
              },
              error: function error(reason) {
                if (this.isCancelled) {
                  return;
                }

                this.isCancelled = true;
                sendStreamRequest({
                  stream: 'error',
                  reason: reason
                });
              },
              sinkCapability: capability,
              onPull: null,
              onCancel: null,
              isCancelled: false,
              desiredSize: desiredSize,
              ready: null
            };
            streamSink.sinkCapability.resolve();
            streamSink.ready = streamSink.sinkCapability.promise;
            this.streamSinks[streamId] = streamSink;
            resolveCall(action[0], [data.data, streamSink], action[1]).then(function () {
              sendStreamRequest({
                stream: 'start_complete',
                success: true
              });
            }, function (reason) {
              sendStreamRequest({
                stream: 'start_complete',
                success: false,
                reason: reason
              });
            });
          },
          _processStreamMessage: function _processStreamMessage(data) {
            var _this4 = this;

            var sourceName = this.sourceName;
            var targetName = data.sourceName;
            var streamId = data.streamId;

            var sendStreamResponse = function sendStreamResponse(_ref2) {
              var stream = _ref2.stream,
                success = _ref2.success,
                reason = _ref2.reason;

              _this4.comObj.postMessage({
                sourceName: sourceName,
                targetName: targetName,
                stream: stream,
                success: success,
                streamId: streamId,
                reason: reason
              });
            };

            var deleteStreamController = function deleteStreamController() {
              Promise.all([_this4.streamControllers[data.streamId].startCall, _this4.streamControllers[data.streamId].pullCall, _this4.streamControllers[data.streamId].cancelCall].map(function (capability) {
                return capability && finalize(capability.promise);
              })).then(function () {
                delete _this4.streamControllers[data.streamId];
              });
            };

            switch (data.stream) {
              case 'start_complete':
                resolveOrReject(this.streamControllers[data.streamId].startCall, data.success, wrapReason(data.reason));
                break;

              case 'pull_complete':
                resolveOrReject(this.streamControllers[data.streamId].pullCall, data.success, wrapReason(data.reason));
                break;

              case 'pull':
                if (!this.streamSinks[data.streamId]) {
                  sendStreamResponse({
                    stream: 'pull_complete',
                    success: true
                  });
                  break;
                }

                if (this.streamSinks[data.streamId].desiredSize <= 0 && data.desiredSize > 0) {
                  this.streamSinks[data.streamId].sinkCapability.resolve();
                }

                this.streamSinks[data.streamId].desiredSize = data.desiredSize;
                resolveCall(this.streamSinks[data.streamId].onPull).then(function () {
                  sendStreamResponse({
                    stream: 'pull_complete',
                    success: true
                  });
                }, function (reason) {
                  sendStreamResponse({
                    stream: 'pull_complete',
                    success: false,
                    reason: reason
                  });
                });
                break;

              case 'enqueue':
                (0, _util.assert)(this.streamControllers[data.streamId], 'enqueue should have stream controller');

                if (!this.streamControllers[data.streamId].isClosed) {
                  this.streamControllers[data.streamId].controller.enqueue(data.chunk);
                }

                break;

              case 'close':
                (0, _util.assert)(this.streamControllers[data.streamId], 'close should have stream controller');

                if (this.streamControllers[data.streamId].isClosed) {
                  break;
                }

                this.streamControllers[data.streamId].isClosed = true;
                this.streamControllers[data.streamId].controller.close();
                deleteStreamController();
                break;

              case 'error':
                (0, _util.assert)(this.streamControllers[data.streamId], 'error should have stream controller');
                this.streamControllers[data.streamId].controller.error(wrapReason(data.reason));
                deleteStreamController();
                break;

              case 'cancel_complete':
                resolveOrReject(this.streamControllers[data.streamId].cancelCall, data.success, wrapReason(data.reason));
                deleteStreamController();
                break;

              case 'cancel':
                if (!this.streamSinks[data.streamId]) {
                  break;
                }

                resolveCall(this.streamSinks[data.streamId].onCancel, [wrapReason(data.reason)]).then(function () {
                  sendStreamResponse({
                    stream: 'cancel_complete',
                    success: true
                  });
                }, function (reason) {
                  sendStreamResponse({
                    stream: 'cancel_complete',
                    success: false,
                    reason: reason
                  });
                });
                this.streamSinks[data.streamId].sinkCapability.reject(wrapReason(data.reason));
                this.streamSinks[data.streamId].isCancelled = true;
                delete this.streamSinks[data.streamId];
                break;

              default:
                throw new Error('Unexpected stream case');
            }
          },
          postMessage: function postMessage(message, transfers) {
            if (transfers && this.postMessageTransfers) {
              this.comObj.postMessage(message, transfers);
            } else {
              this.comObj.postMessage(message);
            }
          },
          destroy: function destroy() {
            this.comObj.removeEventListener('message', this._onComObjOnMessage);
          }
        };

        /***/
      }),
      /* 158 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.Metadata = void 0;

        var _util = __w_pdfjs_require__(1);

        var _xml_parser = __w_pdfjs_require__(159);

        function _classCallCheck(instance, Constructor) {
          if (!(instance instanceof Constructor)) {
            throw new TypeError("Cannot call a class as a function");
          }
        }

        function _defineProperties(target, props) {
          for (var i = 0; i < props.length; i++) {
            var descriptor = props[i];
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ("value" in descriptor) descriptor.writable = true;
            Object.defineProperty(target, descriptor.key, descriptor);
          }
        }

        function _createClass(Constructor, protoProps, staticProps) {
          if (protoProps) _defineProperties(Constructor.prototype, protoProps);
          if (staticProps) _defineProperties(Constructor, staticProps);
          return Constructor;
        }

        var Metadata =
          /*#__PURE__*/
          function () {
            function Metadata(data) {
              _classCallCheck(this, Metadata);

              (0, _util.assert)(typeof data === 'string', 'Metadata: input is not a string');
              data = this._repair(data);
              var parser = new _xml_parser.SimpleXMLParser();
              var xmlDocument = parser.parseFromString(data);
              this._metadata = Object.create(null);

              if (xmlDocument) {
                this._parse(xmlDocument);
              }
            }

            _createClass(Metadata, [{
              key: "_repair",
              value: function _repair(data) {
                return data.replace(/^([^<]+)/, '').replace(/>\\376\\377([^<]+)/g, function (all, codes) {
                  var bytes = codes.replace(/\\([0-3])([0-7])([0-7])/g, function (code, d1, d2, d3) {
                    return String.fromCharCode(d1 * 64 + d2 * 8 + d3 * 1);
                  }).replace(/&(amp|apos|gt|lt|quot);/g, function (str, name) {
                    switch (name) {
                      case 'amp':
                        return '&';

                      case 'apos':
                        return '\'';

                      case 'gt':
                        return '>';

                      case 'lt':
                        return '<';

                      case 'quot':
                        return '\"';
                    }

                    throw new Error("_repair: ".concat(name, " isn't defined."));
                  });
                  var chars = '';

                  for (var i = 0, ii = bytes.length; i < ii; i += 2) {
                    var code = bytes.charCodeAt(i) * 256 + bytes.charCodeAt(i + 1);

                    if (code >= 32 && code < 127 && code !== 60 && code !== 62 && code !== 38) {
                      chars += String.fromCharCode(code);
                    } else {
                      chars += '&#x' + (0x10000 + code).toString(16).substring(1) + ';';
                    }
                  }

                  return '>' + chars;
                });
              }
            }, {
              key: "_parse",
              value: function _parse(xmlDocument) {
                var rdf = xmlDocument.documentElement;

                if (rdf.nodeName.toLowerCase() !== 'rdf:rdf') {
                  rdf = rdf.firstChild;

                  while (rdf && rdf.nodeName.toLowerCase() !== 'rdf:rdf') {
                    rdf = rdf.nextSibling;
                  }
                }

                var nodeName = rdf ? rdf.nodeName.toLowerCase() : null;

                if (!rdf || nodeName !== 'rdf:rdf' || !rdf.hasChildNodes()) {
                  return;
                }

                var children = rdf.childNodes;

                for (var i = 0, ii = children.length; i < ii; i++) {
                  var desc = children[i];

                  if (desc.nodeName.toLowerCase() !== 'rdf:description') {
                    continue;
                  }

                  for (var j = 0, jj = desc.childNodes.length; j < jj; j++) {
                    if (desc.childNodes[j].nodeName.toLowerCase() !== '#text') {
                      var entry = desc.childNodes[j];
                      var name = entry.nodeName.toLowerCase();
                      this._metadata[name] = entry.textContent.trim();
                    }
                  }
                }
              }
            }, {
              key: "get",
              value: function get(name) {
                var data = this._metadata[name];
                return typeof data !== 'undefined' ? data : null;
              }
            }, {
              key: "getAll",
              value: function getAll() {
                return this._metadata;
              }
            }, {
              key: "has",
              value: function has(name) {
                return typeof this._metadata[name] !== 'undefined';
              }
            }]);

            return Metadata;
          }();

        exports.Metadata = Metadata;

        /***/
      }),
      /* 159 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.SimpleXMLParser = void 0;

        function _typeof(obj) {
          if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof = function _typeof(obj) {
              return typeof obj;
            };
          } else {
            _typeof = function _typeof(obj) {
              return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
          }
          return _typeof(obj);
        }

        function _slicedToArray(arr, i) {
          return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest();
        }

        function _nonIterableRest() {
          throw new TypeError("Invalid attempt to destructure non-iterable instance");
        }

        function _iterableToArrayLimit(arr, i) {
          var _arr = [];
          var _n = true;
          var _d = false;
          var _e = undefined;
          try {
            for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
              _arr.push(_s.value);
              if (i && _arr.length === i) break;
            }
          } catch (err) {
            _d = true;
            _e = err;
          } finally {
            try {
              if (!_n && _i["return"] != null) _i["return"]();
            } finally {
              if (_d) throw _e;
            }
          }
          return _arr;
        }

        function _arrayWithHoles(arr) {
          if (Array.isArray(arr)) return arr;
        }

        function _possibleConstructorReturn(self, call) {
          if (call && (_typeof(call) === "object" || typeof call === "function")) {
            return call;
          }
          return _assertThisInitialized(self);
        }

        function _assertThisInitialized(self) {
          if (self === void 0) {
            throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
          }
          return self;
        }

        function _get(target, property, receiver) {
          if (typeof Reflect !== "undefined" && Reflect.get) {
            _get = Reflect.get;
          } else {
            _get = function _get(target, property, receiver) {
              var base = _superPropBase(target, property);
              if (!base) return;
              var desc = Object.getOwnPropertyDescriptor(base, property);
              if (desc.get) {
                return desc.get.call(receiver);
              }
              return desc.value;
            };
          }
          return _get(target, property, receiver || target);
        }

        function _superPropBase(object, property) {
          while (!Object.prototype.hasOwnProperty.call(object, property)) {
            object = _getPrototypeOf(object);
            if (object === null) break;
          }
          return object;
        }

        function _getPrototypeOf(o) {
          _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
            return o.__proto__ || Object.getPrototypeOf(o);
          };
          return _getPrototypeOf(o);
        }

        function _inherits(subClass, superClass) {
          if (typeof superClass !== "function" && superClass !== null) {
            throw new TypeError("Super expression must either be null or a function");
          }
          subClass.prototype = Object.create(superClass && superClass.prototype, {
            constructor: {
              value: subClass,
              writable: true,
              configurable: true
            }
          });
          if (superClass) _setPrototypeOf(subClass, superClass);
        }

        function _setPrototypeOf(o, p) {
          _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
            o.__proto__ = p;
            return o;
          };
          return _setPrototypeOf(o, p);
        }

        function _classCallCheck(instance, Constructor) {
          if (!(instance instanceof Constructor)) {
            throw new TypeError("Cannot call a class as a function");
          }
        }

        function _defineProperties(target, props) {
          for (var i = 0; i < props.length; i++) {
            var descriptor = props[i];
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ("value" in descriptor) descriptor.writable = true;
            Object.defineProperty(target, descriptor.key, descriptor);
          }
        }

        function _createClass(Constructor, protoProps, staticProps) {
          if (protoProps) _defineProperties(Constructor.prototype, protoProps);
          if (staticProps) _defineProperties(Constructor, staticProps);
          return Constructor;
        }

        var XMLParserErrorCode = {
          NoError: 0,
          EndOfDocument: -1,
          UnterminatedCdat: -2,
          UnterminatedXmlDeclaration: -3,
          UnterminatedDoctypeDeclaration: -4,
          UnterminatedComment: -5,
          MalformedElement: -6,
          OutOfMemory: -7,
          UnterminatedAttributeValue: -8,
          UnterminatedElement: -9,
          ElementNeverBegun: -10
        };

        function isWhitespace(s, index) {
          var ch = s[index];
          return ch === ' ' || ch === '\n' || ch === '\r' || ch === '\t';
        }

        function isWhitespaceString(s) {
          for (var i = 0, ii = s.length; i < ii; i++) {
            if (!isWhitespace(s, i)) {
              return false;
            }
          }

          return true;
        }

        var XMLParserBase =
          /*#__PURE__*/
          function () {
            function XMLParserBase() {
              _classCallCheck(this, XMLParserBase);
            }

            _createClass(XMLParserBase, [{
              key: "_resolveEntities",
              value: function _resolveEntities(s) {
                var _this = this;

                return s.replace(/&([^;]+);/g, function (all, entity) {
                  if (entity.substring(0, 2) === '#x') {
                    return String.fromCharCode(parseInt(entity.substring(2), 16));
                  } else if (entity.substring(0, 1) === '#') {
                    return String.fromCharCode(parseInt(entity.substring(1), 10));
                  }

                  switch (entity) {
                    case 'lt':
                      return '<';

                    case 'gt':
                      return '>';

                    case 'amp':
                      return '&';

                    case 'quot':
                      return '\"';
                  }

                  return _this.onResolveEntity(entity);
                });
              }
            }, {
              key: "_parseContent",
              value: function _parseContent(s, start) {
                var pos = start,
                  name,
                  attributes = [];

                function skipWs() {
                  while (pos < s.length && isWhitespace(s, pos)) {
                    ++pos;
                  }
                }

                while (pos < s.length && !isWhitespace(s, pos) && s[pos] !== '>' && s[pos] !== '/') {
                  ++pos;
                }

                name = s.substring(start, pos);
                skipWs();

                while (pos < s.length && s[pos] !== '>' && s[pos] !== '/' && s[pos] !== '?') {
                  skipWs();
                  var attrName = '',
                    attrValue = '';

                  while (pos < s.length && !isWhitespace(s, pos) && s[pos] !== '=') {
                    attrName += s[pos];
                    ++pos;
                  }

                  skipWs();

                  if (s[pos] !== '=') {
                    return null;
                  }

                  ++pos;
                  skipWs();
                  var attrEndChar = s[pos];

                  if (attrEndChar !== '\"' && attrEndChar !== '\'') {
                    return null;
                  }

                  var attrEndIndex = s.indexOf(attrEndChar, ++pos);

                  if (attrEndIndex < 0) {
                    return null;
                  }

                  attrValue = s.substring(pos, attrEndIndex);
                  attributes.push({
                    name: attrName,
                    value: this._resolveEntities(attrValue)
                  });
                  pos = attrEndIndex + 1;
                  skipWs();
                }

                return {
                  name: name,
                  attributes: attributes,
                  parsed: pos - start
                };
              }
            }, {
              key: "_parseProcessingInstruction",
              value: function _parseProcessingInstruction(s, start) {
                var pos = start,
                  name,
                  value;

                function skipWs() {
                  while (pos < s.length && isWhitespace(s, pos)) {
                    ++pos;
                  }
                }

                while (pos < s.length && !isWhitespace(s, pos) && s[pos] !== '>' && s[pos] !== '/') {
                  ++pos;
                }

                name = s.substring(start, pos);
                skipWs();
                var attrStart = pos;

                while (pos < s.length && (s[pos] !== '?' || s[pos + 1] !== '>')) {
                  ++pos;
                }

                value = s.substring(attrStart, pos);
                return {
                  name: name,
                  value: value,
                  parsed: pos - start
                };
              }
            }, {
              key: "parseXml",
              value: function parseXml(s) {
                var i = 0;

                while (i < s.length) {
                  var ch = s[i];
                  var j = i;

                  if (ch === '<') {
                    ++j;
                    var ch2 = s[j];
                    var q = void 0;

                    switch (ch2) {
                      case '/':
                        ++j;
                        q = s.indexOf('>', j);

                        if (q < 0) {
                          this.onError(XMLParserErrorCode.UnterminatedElement);
                          return;
                        }

                        this.onEndElement(s.substring(j, q));
                        j = q + 1;
                        break;

                      case '?':
                        ++j;

                        var pi = this._parseProcessingInstruction(s, j);

                        if (s.substring(j + pi.parsed, j + pi.parsed + 2) !== '?>') {
                          this.onError(XMLParserErrorCode.UnterminatedXmlDeclaration);
                          return;
                        }

                        this.onPi(pi.name, pi.value);
                        j += pi.parsed + 2;
                        break;

                      case '!':
                        if (s.substring(j + 1, j + 3) === '--') {
                          q = s.indexOf('-->', j + 3);

                          if (q < 0) {
                            this.onError(XMLParserErrorCode.UnterminatedComment);
                            return;
                          }

                          this.onComment(s.substring(j + 3, q));
                          j = q + 3;
                        } else if (s.substring(j + 1, j + 8) === '[CDATA[') {
                          q = s.indexOf(']]>', j + 8);

                          if (q < 0) {
                            this.onError(XMLParserErrorCode.UnterminatedCdat);
                            return;
                          }

                          this.onCdata(s.substring(j + 8, q));
                          j = q + 3;
                        } else if (s.substring(j + 1, j + 8) === 'DOCTYPE') {
                          var q2 = s.indexOf('[', j + 8);
                          var complexDoctype = false;
                          q = s.indexOf('>', j + 8);

                          if (q < 0) {
                            this.onError(XMLParserErrorCode.UnterminatedDoctypeDeclaration);
                            return;
                          }

                          if (q2 > 0 && q > q2) {
                            q = s.indexOf(']>', j + 8);

                            if (q < 0) {
                              this.onError(XMLParserErrorCode.UnterminatedDoctypeDeclaration);
                              return;
                            }

                            complexDoctype = true;
                          }

                          var doctypeContent = s.substring(j + 8, q + (complexDoctype ? 1 : 0));
                          this.onDoctype(doctypeContent);
                          j = q + (complexDoctype ? 2 : 1);
                        } else {
                          this.onError(XMLParserErrorCode.MalformedElement);
                          return;
                        }

                        break;

                      default:
                        var content = this._parseContent(s, j);

                        if (content === null) {
                          this.onError(XMLParserErrorCode.MalformedElement);
                          return;
                        }

                        var isClosed = false;

                        if (s.substring(j + content.parsed, j + content.parsed + 2) === '/>') {
                          isClosed = true;
                        } else if (s.substring(j + content.parsed, j + content.parsed + 1) !== '>') {
                          this.onError(XMLParserErrorCode.UnterminatedElement);
                          return;
                        }

                        this.onBeginElement(content.name, content.attributes, isClosed);
                        j += content.parsed + (isClosed ? 2 : 1);
                        break;
                    }
                  } else {
                    while (j < s.length && s[j] !== '<') {
                      j++;
                    }

                    var text = s.substring(i, j);
                    this.onText(this._resolveEntities(text));
                  }

                  i = j;
                }
              }
            }, {
              key: "onResolveEntity",
              value: function onResolveEntity(name) {
                return "&".concat(name, ";");
              }
            }, {
              key: "onPi",
              value: function onPi(name, value) {
              }
            }, {
              key: "onComment",
              value: function onComment(text) {
              }
            }, {
              key: "onCdata",
              value: function onCdata(text) {
              }
            }, {
              key: "onDoctype",
              value: function onDoctype(doctypeContent) {
              }
            }, {
              key: "onText",
              value: function onText(text) {
              }
            }, {
              key: "onBeginElement",
              value: function onBeginElement(name, attributes, isEmpty) {
              }
            }, {
              key: "onEndElement",
              value: function onEndElement(name) {
              }
            }, {
              key: "onError",
              value: function onError(code) {
              }
            }]);

            return XMLParserBase;
          }();

        var SimpleDOMNode =
          /*#__PURE__*/
          function () {
            function SimpleDOMNode(nodeName, nodeValue) {
              _classCallCheck(this, SimpleDOMNode);

              this.nodeName = nodeName;
              this.nodeValue = nodeValue;
              Object.defineProperty(this, 'parentNode', {
                value: null,
                writable: true
              });
            }

            _createClass(SimpleDOMNode, [{
              key: "hasChildNodes",
              value: function hasChildNodes() {
                return this.childNodes && this.childNodes.length > 0;
              }
            }, {
              key: "firstChild",
              get: function get() {
                return this.childNodes && this.childNodes[0];
              }
            }, {
              key: "nextSibling",
              get: function get() {
                var childNodes = this.parentNode.childNodes;

                if (!childNodes) {
                  return undefined;
                }

                var index = childNodes.indexOf(this);

                if (index === -1) {
                  return undefined;
                }

                return childNodes[index + 1];
              }
            }, {
              key: "textContent",
              get: function get() {
                if (!this.childNodes) {
                  return this.nodeValue || '';
                }

                return this.childNodes.map(function (child) {
                  return child.textContent;
                }).join('');
              }
            }]);

            return SimpleDOMNode;
          }();

        var SimpleXMLParser =
          /*#__PURE__*/
          function (_XMLParserBase) {
            _inherits(SimpleXMLParser, _XMLParserBase);

            function SimpleXMLParser() {
              var _this2;

              _classCallCheck(this, SimpleXMLParser);

              _this2 = _possibleConstructorReturn(this, _getPrototypeOf(SimpleXMLParser).call(this));
              _this2._currentFragment = null;
              _this2._stack = null;
              _this2._errorCode = XMLParserErrorCode.NoError;
              return _this2;
            }

            _createClass(SimpleXMLParser, [{
              key: "parseFromString",
              value: function parseFromString(data) {
                this._currentFragment = [];
                this._stack = [];
                this._errorCode = XMLParserErrorCode.NoError;
                this.parseXml(data);

                if (this._errorCode !== XMLParserErrorCode.NoError) {
                  return undefined;
                }

                var _this$_currentFragmen = _slicedToArray(this._currentFragment, 1),
                  documentElement = _this$_currentFragmen[0];

                if (!documentElement) {
                  return undefined;
                }

                return {
                  documentElement: documentElement
                };
              }
            }, {
              key: "onResolveEntity",
              value: function onResolveEntity(name) {
                switch (name) {
                  case 'apos':
                    return '\'';
                }

                return _get(_getPrototypeOf(SimpleXMLParser.prototype), "onResolveEntity", this).call(this, name);
              }
            }, {
              key: "onText",
              value: function onText(text) {
                if (isWhitespaceString(text)) {
                  return;
                }

                var node = new SimpleDOMNode('#text', text);

                this._currentFragment.push(node);
              }
            }, {
              key: "onCdata",
              value: function onCdata(text) {
                var node = new SimpleDOMNode('#text', text);

                this._currentFragment.push(node);
              }
            }, {
              key: "onBeginElement",
              value: function onBeginElement(name, attributes, isEmpty) {
                var node = new SimpleDOMNode(name);
                node.childNodes = [];

                this._currentFragment.push(node);

                if (isEmpty) {
                  return;
                }

                this._stack.push(this._currentFragment);

                this._currentFragment = node.childNodes;
              }
            }, {
              key: "onEndElement",
              value: function onEndElement(name) {
                this._currentFragment = this._stack.pop() || [];
                var lastElement = this._currentFragment[this._currentFragment.length - 1];

                if (!lastElement) {
                  return;
                }

                for (var i = 0, ii = lastElement.childNodes.length; i < ii; i++) {
                  lastElement.childNodes[i].parentNode = lastElement;
                }
              }
            }, {
              key: "onError",
              value: function onError(code) {
                this._errorCode = code;
              }
            }]);

            return SimpleXMLParser;
          }(XMLParserBase);

        exports.SimpleXMLParser = SimpleXMLParser;

        /***/
      }),
      /* 160 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.PDFDataTransportStream = void 0;

        var _regenerator = _interopRequireDefault(__w_pdfjs_require__(147));

        var _util = __w_pdfjs_require__(1);

        function _interopRequireDefault(obj) {
          return obj && obj.__esModule ? obj : {default: obj};
        }

        function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
          try {
            var info = gen[key](arg);
            var value = info.value;
          } catch (error) {
            reject(error);
            return;
          }
          if (info.done) {
            resolve(value);
          } else {
            Promise.resolve(value).then(_next, _throw);
          }
        }

        function _asyncToGenerator(fn) {
          return function () {
            var self = this, args = arguments;
            return new Promise(function (resolve, reject) {
              var gen = fn.apply(self, args);

              function _next(value) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
              }

              function _throw(err) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
              }

              _next(undefined);
            });
          };
        }

        var PDFDataTransportStream = function PDFDataTransportStreamClosure() {
          function PDFDataTransportStream(params, pdfDataRangeTransport) {
            var _this = this;

            (0, _util.assert)(pdfDataRangeTransport);
            this._queuedChunks = [];
            var initialData = params.initialData;

            if (initialData && initialData.length > 0) {
              var buffer = new Uint8Array(initialData).buffer;

              this._queuedChunks.push(buffer);
            }

            this._pdfDataRangeTransport = pdfDataRangeTransport;
            this._isStreamingSupported = !params.disableStream;
            this._isRangeSupported = !params.disableRange;
            this._contentLength = params.length;
            this._fullRequestReader = null;
            this._rangeReaders = [];

            this._pdfDataRangeTransport.addRangeListener(function (begin, chunk) {
              _this._onReceiveData({
                begin: begin,
                chunk: chunk
              });
            });

            this._pdfDataRangeTransport.addProgressListener(function (loaded) {
              _this._onProgress({
                loaded: loaded
              });
            });

            this._pdfDataRangeTransport.addProgressiveReadListener(function (chunk) {
              _this._onReceiveData({
                chunk: chunk
              });
            });

            this._pdfDataRangeTransport.transportReady();
          }

          PDFDataTransportStream.prototype = {
            _onReceiveData: function PDFDataTransportStream_onReceiveData(args) {
              var buffer = new Uint8Array(args.chunk).buffer;

              if (args.begin === undefined) {
                if (this._fullRequestReader) {
                  this._fullRequestReader._enqueue(buffer);
                } else {
                  this._queuedChunks.push(buffer);
                }
              } else {
                var found = this._rangeReaders.some(function (rangeReader) {
                  if (rangeReader._begin !== args.begin) {
                    return false;
                  }

                  rangeReader._enqueue(buffer);

                  return true;
                });

                (0, _util.assert)(found);
              }
            },
            _onProgress: function PDFDataTransportStream_onDataProgress(evt) {
              if (this._rangeReaders.length > 0) {
                var firstReader = this._rangeReaders[0];

                if (firstReader.onProgress) {
                  firstReader.onProgress({
                    loaded: evt.loaded
                  });
                }
              }
            },
            _removeRangeReader: function PDFDataTransportStream_removeRangeReader(reader) {
              var i = this._rangeReaders.indexOf(reader);

              if (i >= 0) {
                this._rangeReaders.splice(i, 1);
              }
            },
            getFullReader: function PDFDataTransportStream_getFullReader() {
              (0, _util.assert)(!this._fullRequestReader);
              var queuedChunks = this._queuedChunks;
              this._queuedChunks = null;
              return new PDFDataTransportStreamReader(this, queuedChunks);
            },
            getRangeReader: function PDFDataTransportStream_getRangeReader(begin, end) {
              var reader = new PDFDataTransportStreamRangeReader(this, begin, end);

              this._pdfDataRangeTransport.requestDataRange(begin, end);

              this._rangeReaders.push(reader);

              return reader;
            },
            cancelAllRequests: function PDFDataTransportStream_cancelAllRequests(reason) {
              if (this._fullRequestReader) {
                this._fullRequestReader.cancel(reason);
              }

              var readers = this._rangeReaders.slice(0);

              readers.forEach(function (rangeReader) {
                rangeReader.cancel(reason);
              });

              this._pdfDataRangeTransport.abort();
            }
          };

          function PDFDataTransportStreamReader(stream, queuedChunks) {
            this._stream = stream;
            this._done = false;
            this._filename = null;
            this._queuedChunks = queuedChunks || [];
            this._requests = [];
            this._headersReady = Promise.resolve();
            stream._fullRequestReader = this;
            this.onProgress = null;
          }

          PDFDataTransportStreamReader.prototype = {
            _enqueue: function PDFDataTransportStreamReader_enqueue(chunk) {
              if (this._done) {
                return;
              }

              if (this._requests.length > 0) {
                var requestCapability = this._requests.shift();

                requestCapability.resolve({
                  value: chunk,
                  done: false
                });
                return;
              }

              this._queuedChunks.push(chunk);
            },

            get headersReady() {
              return this._headersReady;
            },

            get filename() {
              return this._filename;
            },

            get isRangeSupported() {
              return this._stream._isRangeSupported;
            },

            get isStreamingSupported() {
              return this._stream._isStreamingSupported;
            },

            get contentLength() {
              return this._stream._contentLength;
            },

            read: function () {
              var _read = _asyncToGenerator(
                /*#__PURE__*/
                _regenerator.default.mark(function _callee() {
                  var chunk, requestCapability;
                  return _regenerator.default.wrap(function _callee$(_context) {
                    while (1) {
                      switch (_context.prev = _context.next) {
                        case 0:
                          if (!(this._queuedChunks.length > 0)) {
                            _context.next = 3;
                            break;
                          }

                          chunk = this._queuedChunks.shift();
                          return _context.abrupt("return", {
                            value: chunk,
                            done: false
                          });

                        case 3:
                          if (!this._done) {
                            _context.next = 5;
                            break;
                          }

                          return _context.abrupt("return", {
                            value: undefined,
                            done: true
                          });

                        case 5:
                          requestCapability = (0, _util.createPromiseCapability)();

                          this._requests.push(requestCapability);

                          return _context.abrupt("return", requestCapability.promise);

                        case 8:
                        case "end":
                          return _context.stop();
                      }
                    }
                  }, _callee, this);
                }));

              function read() {
                return _read.apply(this, arguments);
              }

              return read;
            }(),
            cancel: function PDFDataTransportStreamReader_cancel(reason) {
              this._done = true;

              this._requests.forEach(function (requestCapability) {
                requestCapability.resolve({
                  value: undefined,
                  done: true
                });
              });

              this._requests = [];
            }
          };

          function PDFDataTransportStreamRangeReader(stream, begin, end) {
            this._stream = stream;
            this._begin = begin;
            this._end = end;
            this._queuedChunk = null;
            this._requests = [];
            this._done = false;
            this.onProgress = null;
          }

          PDFDataTransportStreamRangeReader.prototype = {
            _enqueue: function PDFDataTransportStreamRangeReader_enqueue(chunk) {
              if (this._done) {
                return;
              }

              if (this._requests.length === 0) {
                this._queuedChunk = chunk;
              } else {
                var requestsCapability = this._requests.shift();

                requestsCapability.resolve({
                  value: chunk,
                  done: false
                });

                this._requests.forEach(function (requestCapability) {
                  requestCapability.resolve({
                    value: undefined,
                    done: true
                  });
                });

                this._requests = [];
              }

              this._done = true;

              this._stream._removeRangeReader(this);
            },

            get isStreamingSupported() {
              return false;
            },

            read: function () {
              var _read2 = _asyncToGenerator(
                /*#__PURE__*/
                _regenerator.default.mark(function _callee2() {
                  var chunk, requestCapability;
                  return _regenerator.default.wrap(function _callee2$(_context2) {
                    while (1) {
                      switch (_context2.prev = _context2.next) {
                        case 0:
                          if (!this._queuedChunk) {
                            _context2.next = 4;
                            break;
                          }

                          chunk = this._queuedChunk;
                          this._queuedChunk = null;
                          return _context2.abrupt("return", {
                            value: chunk,
                            done: false
                          });

                        case 4:
                          if (!this._done) {
                            _context2.next = 6;
                            break;
                          }

                          return _context2.abrupt("return", {
                            value: undefined,
                            done: true
                          });

                        case 6:
                          requestCapability = (0, _util.createPromiseCapability)();

                          this._requests.push(requestCapability);

                          return _context2.abrupt("return", requestCapability.promise);

                        case 9:
                        case "end":
                          return _context2.stop();
                      }
                    }
                  }, _callee2, this);
                }));

              function read() {
                return _read2.apply(this, arguments);
              }

              return read;
            }(),
            cancel: function PDFDataTransportStreamRangeReader_cancel(reason) {
              this._done = true;

              this._requests.forEach(function (requestCapability) {
                requestCapability.resolve({
                  value: undefined,
                  done: true
                });
              });

              this._requests = [];

              this._stream._removeRangeReader(this);
            }
          };
          return PDFDataTransportStream;
        }();

        exports.PDFDataTransportStream = PDFDataTransportStream;

        /***/
      }),
      /* 161 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.WebGLContext = void 0;

        var _util = __w_pdfjs_require__(1);

        function _classCallCheck(instance, Constructor) {
          if (!(instance instanceof Constructor)) {
            throw new TypeError("Cannot call a class as a function");
          }
        }

        function _defineProperties(target, props) {
          for (var i = 0; i < props.length; i++) {
            var descriptor = props[i];
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ("value" in descriptor) descriptor.writable = true;
            Object.defineProperty(target, descriptor.key, descriptor);
          }
        }

        function _createClass(Constructor, protoProps, staticProps) {
          if (protoProps) _defineProperties(Constructor.prototype, protoProps);
          if (staticProps) _defineProperties(Constructor, staticProps);
          return Constructor;
        }

        var WebGLContext =
          /*#__PURE__*/
          function () {
            function WebGLContext(_ref) {
              var _ref$enable = _ref.enable,
                enable = _ref$enable === void 0 ? false : _ref$enable;

              _classCallCheck(this, WebGLContext);

              this._enabled = enable === true;
            }

            _createClass(WebGLContext, [{
              key: "composeSMask",
              value: function composeSMask(_ref2) {
                var layer = _ref2.layer,
                  mask = _ref2.mask,
                  properties = _ref2.properties;
                return WebGLUtils.composeSMask(layer, mask, properties);
              }
            }, {
              key: "drawFigures",
              value: function drawFigures(_ref3) {
                var width = _ref3.width,
                  height = _ref3.height,
                  backgroundColor = _ref3.backgroundColor,
                  figures = _ref3.figures,
                  context = _ref3.context;
                return WebGLUtils.drawFigures(width, height, backgroundColor, figures, context);
              }
            }, {
              key: "clear",
              value: function clear() {
                WebGLUtils.cleanup();
              }
            }, {
              key: "isEnabled",
              get: function get() {
                var enabled = this._enabled;

                if (enabled) {
                  enabled = WebGLUtils.tryInitGL();
                }

                return (0, _util.shadow)(this, 'isEnabled', enabled);
              }
            }]);

            return WebGLContext;
          }();

        exports.WebGLContext = WebGLContext;

        var WebGLUtils = function WebGLUtilsClosure() {
          function loadShader(gl, code, shaderType) {
            var shader = gl.createShader(shaderType);
            gl.shaderSource(shader, code);
            gl.compileShader(shader);
            var compiled = gl.getShaderParameter(shader, gl.COMPILE_STATUS);

            if (!compiled) {
              var errorMsg = gl.getShaderInfoLog(shader);
              throw new Error('Error during shader compilation: ' + errorMsg);
            }

            return shader;
          }

          function createVertexShader(gl, code) {
            return loadShader(gl, code, gl.VERTEX_SHADER);
          }

          function createFragmentShader(gl, code) {
            return loadShader(gl, code, gl.FRAGMENT_SHADER);
          }

          function createProgram(gl, shaders) {
            var program = gl.createProgram();

            for (var i = 0, ii = shaders.length; i < ii; ++i) {
              gl.attachShader(program, shaders[i]);
            }

            gl.linkProgram(program);
            var linked = gl.getProgramParameter(program, gl.LINK_STATUS);

            if (!linked) {
              var errorMsg = gl.getProgramInfoLog(program);
              throw new Error('Error during program linking: ' + errorMsg);
            }

            return program;
          }

          function createTexture(gl, image, textureId) {
            gl.activeTexture(textureId);
            var texture = gl.createTexture();
            gl.bindTexture(gl.TEXTURE_2D, texture);
            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
            gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
            gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, image);
            return texture;
          }

          var currentGL, currentCanvas;

          function generateGL() {
            if (currentGL) {
              return;
            }

            currentCanvas = document.createElement('canvas');
            currentGL = currentCanvas.getContext('webgl', {
              premultipliedalpha: false
            });
          }

          var smaskVertexShaderCode = '\
  attribute vec2 a_position;                                    \
  attribute vec2 a_texCoord;                                    \
                                                                \
  uniform vec2 u_resolution;                                    \
                                                                \
  varying vec2 v_texCoord;                                      \
                                                                \
  void main() {                                                 \
    vec2 clipSpace = (a_position / u_resolution) * 2.0 - 1.0;   \
    gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);          \
                                                                \
    v_texCoord = a_texCoord;                                    \
  }                                                             ';
          var smaskFragmentShaderCode = '\
  precision mediump float;                                      \
                                                                \
  uniform vec4 u_backdrop;                                      \
  uniform int u_subtype;                                        \
  uniform sampler2D u_image;                                    \
  uniform sampler2D u_mask;                                     \
                                                                \
  varying vec2 v_texCoord;                                      \
                                                                \
  void main() {                                                 \
    vec4 imageColor = texture2D(u_image, v_texCoord);           \
    vec4 maskColor = texture2D(u_mask, v_texCoord);             \
    if (u_backdrop.a > 0.0) {                                   \
      maskColor.rgb = maskColor.rgb * maskColor.a +             \
                      u_backdrop.rgb * (1.0 - maskColor.a);     \
    }                                                           \
    float lum;                                                  \
    if (u_subtype == 0) {                                       \
      lum = maskColor.a;                                        \
    } else {                                                    \
      lum = maskColor.r * 0.3 + maskColor.g * 0.59 +            \
            maskColor.b * 0.11;                                 \
    }                                                           \
    imageColor.a *= lum;                                        \
    imageColor.rgb *= imageColor.a;                             \
    gl_FragColor = imageColor;                                  \
  }                                                             ';
          var smaskCache = null;

          function initSmaskGL() {
            var canvas, gl;
            generateGL();
            canvas = currentCanvas;
            currentCanvas = null;
            gl = currentGL;
            currentGL = null;
            var vertexShader = createVertexShader(gl, smaskVertexShaderCode);
            var fragmentShader = createFragmentShader(gl, smaskFragmentShaderCode);
            var program = createProgram(gl, [vertexShader, fragmentShader]);
            gl.useProgram(program);
            var cache = {};
            cache.gl = gl;
            cache.canvas = canvas;
            cache.resolutionLocation = gl.getUniformLocation(program, 'u_resolution');
            cache.positionLocation = gl.getAttribLocation(program, 'a_position');
            cache.backdropLocation = gl.getUniformLocation(program, 'u_backdrop');
            cache.subtypeLocation = gl.getUniformLocation(program, 'u_subtype');
            var texCoordLocation = gl.getAttribLocation(program, 'a_texCoord');
            var texLayerLocation = gl.getUniformLocation(program, 'u_image');
            var texMaskLocation = gl.getUniformLocation(program, 'u_mask');
            var texCoordBuffer = gl.createBuffer();
            gl.bindBuffer(gl.ARRAY_BUFFER, texCoordBuffer);
            gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([0.0, 0.0, 1.0, 0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0, 1.0]), gl.STATIC_DRAW);
            gl.enableVertexAttribArray(texCoordLocation);
            gl.vertexAttribPointer(texCoordLocation, 2, gl.FLOAT, false, 0, 0);
            gl.uniform1i(texLayerLocation, 0);
            gl.uniform1i(texMaskLocation, 1);
            smaskCache = cache;
          }

          function composeSMask(layer, mask, properties) {
            var width = layer.width,
              height = layer.height;

            if (!smaskCache) {
              initSmaskGL();
            }

            var cache = smaskCache,
              canvas = cache.canvas,
              gl = cache.gl;
            canvas.width = width;
            canvas.height = height;
            gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
            gl.uniform2f(cache.resolutionLocation, width, height);

            if (properties.backdrop) {
              gl.uniform4f(cache.resolutionLocation, properties.backdrop[0], properties.backdrop[1], properties.backdrop[2], 1);
            } else {
              gl.uniform4f(cache.resolutionLocation, 0, 0, 0, 0);
            }

            gl.uniform1i(cache.subtypeLocation, properties.subtype === 'Luminosity' ? 1 : 0);
            var texture = createTexture(gl, layer, gl.TEXTURE0);
            var maskTexture = createTexture(gl, mask, gl.TEXTURE1);
            var buffer = gl.createBuffer();
            gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
            gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([0, 0, width, 0, 0, height, 0, height, width, 0, width, height]), gl.STATIC_DRAW);
            gl.enableVertexAttribArray(cache.positionLocation);
            gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0);
            gl.clearColor(0, 0, 0, 0);
            gl.enable(gl.BLEND);
            gl.blendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
            gl.clear(gl.COLOR_BUFFER_BIT);
            gl.drawArrays(gl.TRIANGLES, 0, 6);
            gl.flush();
            gl.deleteTexture(texture);
            gl.deleteTexture(maskTexture);
            gl.deleteBuffer(buffer);
            return canvas;
          }

          var figuresVertexShaderCode = '\
  attribute vec2 a_position;                                    \
  attribute vec3 a_color;                                       \
                                                                \
  uniform vec2 u_resolution;                                    \
  uniform vec2 u_scale;                                         \
  uniform vec2 u_offset;                                        \
                                                                \
  varying vec4 v_color;                                         \
                                                                \
  void main() {                                                 \
    vec2 position = (a_position + u_offset) * u_scale;          \
    vec2 clipSpace = (position / u_resolution) * 2.0 - 1.0;     \
    gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);          \
                                                                \
    v_color = vec4(a_color / 255.0, 1.0);                       \
  }                                                             ';
          var figuresFragmentShaderCode = '\
  precision mediump float;                                      \
                                                                \
  varying vec4 v_color;                                         \
                                                                \
  void main() {                                                 \
    gl_FragColor = v_color;                                     \
  }                                                             ';
          var figuresCache = null;

          function initFiguresGL() {
            var canvas, gl;
            generateGL();
            canvas = currentCanvas;
            currentCanvas = null;
            gl = currentGL;
            currentGL = null;
            var vertexShader = createVertexShader(gl, figuresVertexShaderCode);
            var fragmentShader = createFragmentShader(gl, figuresFragmentShaderCode);
            var program = createProgram(gl, [vertexShader, fragmentShader]);
            gl.useProgram(program);
            var cache = {};
            cache.gl = gl;
            cache.canvas = canvas;
            cache.resolutionLocation = gl.getUniformLocation(program, 'u_resolution');
            cache.scaleLocation = gl.getUniformLocation(program, 'u_scale');
            cache.offsetLocation = gl.getUniformLocation(program, 'u_offset');
            cache.positionLocation = gl.getAttribLocation(program, 'a_position');
            cache.colorLocation = gl.getAttribLocation(program, 'a_color');
            figuresCache = cache;
          }

          function drawFigures(width, height, backgroundColor, figures, context) {
            if (!figuresCache) {
              initFiguresGL();
            }

            var cache = figuresCache,
              canvas = cache.canvas,
              gl = cache.gl;
            canvas.width = width;
            canvas.height = height;
            gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
            gl.uniform2f(cache.resolutionLocation, width, height);
            var count = 0;
            var i, ii, rows;

            for (i = 0, ii = figures.length; i < ii; i++) {
              switch (figures[i].type) {
                case 'lattice':
                  rows = figures[i].coords.length / figures[i].verticesPerRow | 0;
                  count += (rows - 1) * (figures[i].verticesPerRow - 1) * 6;
                  break;

                case 'triangles':
                  count += figures[i].coords.length;
                  break;
              }
            }

            var coords = new Float32Array(count * 2);
            var colors = new Uint8Array(count * 3);
            var coordsMap = context.coords,
              colorsMap = context.colors;
            var pIndex = 0,
              cIndex = 0;

            for (i = 0, ii = figures.length; i < ii; i++) {
              var figure = figures[i],
                ps = figure.coords,
                cs = figure.colors;

              switch (figure.type) {
                case 'lattice':
                  var cols = figure.verticesPerRow;
                  rows = ps.length / cols | 0;

                  for (var row = 1; row < rows; row++) {
                    var offset = row * cols + 1;

                    for (var col = 1; col < cols; col++, offset++) {
                      coords[pIndex] = coordsMap[ps[offset - cols - 1]];
                      coords[pIndex + 1] = coordsMap[ps[offset - cols - 1] + 1];
                      coords[pIndex + 2] = coordsMap[ps[offset - cols]];
                      coords[pIndex + 3] = coordsMap[ps[offset - cols] + 1];
                      coords[pIndex + 4] = coordsMap[ps[offset - 1]];
                      coords[pIndex + 5] = coordsMap[ps[offset - 1] + 1];
                      colors[cIndex] = colorsMap[cs[offset - cols - 1]];
                      colors[cIndex + 1] = colorsMap[cs[offset - cols - 1] + 1];
                      colors[cIndex + 2] = colorsMap[cs[offset - cols - 1] + 2];
                      colors[cIndex + 3] = colorsMap[cs[offset - cols]];
                      colors[cIndex + 4] = colorsMap[cs[offset - cols] + 1];
                      colors[cIndex + 5] = colorsMap[cs[offset - cols] + 2];
                      colors[cIndex + 6] = colorsMap[cs[offset - 1]];
                      colors[cIndex + 7] = colorsMap[cs[offset - 1] + 1];
                      colors[cIndex + 8] = colorsMap[cs[offset - 1] + 2];
                      coords[pIndex + 6] = coords[pIndex + 2];
                      coords[pIndex + 7] = coords[pIndex + 3];
                      coords[pIndex + 8] = coords[pIndex + 4];
                      coords[pIndex + 9] = coords[pIndex + 5];
                      coords[pIndex + 10] = coordsMap[ps[offset]];
                      coords[pIndex + 11] = coordsMap[ps[offset] + 1];
                      colors[cIndex + 9] = colors[cIndex + 3];
                      colors[cIndex + 10] = colors[cIndex + 4];
                      colors[cIndex + 11] = colors[cIndex + 5];
                      colors[cIndex + 12] = colors[cIndex + 6];
                      colors[cIndex + 13] = colors[cIndex + 7];
                      colors[cIndex + 14] = colors[cIndex + 8];
                      colors[cIndex + 15] = colorsMap[cs[offset]];
                      colors[cIndex + 16] = colorsMap[cs[offset] + 1];
                      colors[cIndex + 17] = colorsMap[cs[offset] + 2];
                      pIndex += 12;
                      cIndex += 18;
                    }
                  }

                  break;

                case 'triangles':
                  for (var j = 0, jj = ps.length; j < jj; j++) {
                    coords[pIndex] = coordsMap[ps[j]];
                    coords[pIndex + 1] = coordsMap[ps[j] + 1];
                    colors[cIndex] = colorsMap[cs[j]];
                    colors[cIndex + 1] = colorsMap[cs[j] + 1];
                    colors[cIndex + 2] = colorsMap[cs[j] + 2];
                    pIndex += 2;
                    cIndex += 3;
                  }

                  break;
              }
            }

            if (backgroundColor) {
              gl.clearColor(backgroundColor[0] / 255, backgroundColor[1] / 255, backgroundColor[2] / 255, 1.0);
            } else {
              gl.clearColor(0, 0, 0, 0);
            }

            gl.clear(gl.COLOR_BUFFER_BIT);
            var coordsBuffer = gl.createBuffer();
            gl.bindBuffer(gl.ARRAY_BUFFER, coordsBuffer);
            gl.bufferData(gl.ARRAY_BUFFER, coords, gl.STATIC_DRAW);
            gl.enableVertexAttribArray(cache.positionLocation);
            gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0);
            var colorsBuffer = gl.createBuffer();
            gl.bindBuffer(gl.ARRAY_BUFFER, colorsBuffer);
            gl.bufferData(gl.ARRAY_BUFFER, colors, gl.STATIC_DRAW);
            gl.enableVertexAttribArray(cache.colorLocation);
            gl.vertexAttribPointer(cache.colorLocation, 3, gl.UNSIGNED_BYTE, false, 0, 0);
            gl.uniform2f(cache.scaleLocation, context.scaleX, context.scaleY);
            gl.uniform2f(cache.offsetLocation, context.offsetX, context.offsetY);
            gl.drawArrays(gl.TRIANGLES, 0, count);
            gl.flush();
            gl.deleteBuffer(coordsBuffer);
            gl.deleteBuffer(colorsBuffer);
            return canvas;
          }

          return {
            tryInitGL: function tryInitGL() {
              try {
                generateGL();
                return !!currentGL;
              } catch (ex) {
              }

              return false;
            },
            composeSMask: composeSMask,
            drawFigures: drawFigures,
            cleanup: function cleanup() {
              if (smaskCache && smaskCache.canvas) {
                smaskCache.canvas.width = 0;
                smaskCache.canvas.height = 0;
              }

              if (figuresCache && figuresCache.canvas) {
                figuresCache.canvas.width = 0;
                figuresCache.canvas.height = 0;
              }

              smaskCache = null;
              figuresCache = null;
            }
          };
        }();

        /***/
      }),
      /* 162 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.renderTextLayer = void 0;

        var _util = __w_pdfjs_require__(1);

        var _global_scope = _interopRequireDefault(__w_pdfjs_require__(3));

        function _interopRequireDefault(obj) {
          return obj && obj.__esModule ? obj : {default: obj};
        }

        var renderTextLayer = function renderTextLayerClosure() {
          var MAX_TEXT_DIVS_TO_RENDER = 100000;
          var NonWhitespaceRegexp = /\S/;

          function isAllWhitespace(str) {
            return !NonWhitespaceRegexp.test(str);
          }

          var styleBuf = ['left: ', 0, 'px; top: ', 0, 'px; font-size: ', 0, 'px; font-family: ', '', ';'];

          function appendText(task, geom, styles) {
            var textDiv = document.createElement('span');
            var textDivProperties = {
              style: null,
              angle: 0,
              canvasWidth: 0,
              isWhitespace: false,
              originalTransform: null,
              paddingBottom: 0,
              paddingLeft: 0,
              paddingRight: 0,
              paddingTop: 0,
              scale: 1
            };

            task._textDivs.push(textDiv);

            if (isAllWhitespace(geom.str)) {
              textDivProperties.isWhitespace = true;

              task._textDivProperties.set(textDiv, textDivProperties);

              return;
            }

            var tx = _util.Util.transform(task._viewport.transform, geom.transform);

            var angle = Math.atan2(tx[1], tx[0]);
            var style = styles[geom.fontName];

            if (style.vertical) {
              angle += Math.PI / 2;
            }

            var fontHeight = Math.sqrt(tx[2] * tx[2] + tx[3] * tx[3]);
            var fontAscent = fontHeight;

            if (style.ascent) {
              fontAscent = style.ascent * fontAscent;
            } else if (style.descent) {
              fontAscent = (1 + style.descent) * fontAscent;
            }

            var left;
            var top;

            if (angle === 0) {
              left = tx[4];
              top = tx[5] - fontAscent;
            } else {
              left = tx[4] + fontAscent * Math.sin(angle);
              top = tx[5] - fontAscent * Math.cos(angle);
            }

            styleBuf[1] = left;
            styleBuf[3] = top;
            styleBuf[5] = fontHeight;
            styleBuf[7] = style.fontFamily;
            textDivProperties.style = styleBuf.join('');
            textDiv.setAttribute('style', textDivProperties.style);
            textDiv.textContent = geom.str;

            if (task._fontInspectorEnabled) {
              textDiv.dataset.fontName = geom.fontName;
            }

            if (angle !== 0) {
              textDivProperties.angle = angle * (180 / Math.PI);
            }

            if (geom.str.length > 1) {
              if (style.vertical) {
                textDivProperties.canvasWidth = geom.height * task._viewport.scale;
              } else {
                textDivProperties.canvasWidth = geom.width * task._viewport.scale;
              }
            }

            task._textDivProperties.set(textDiv, textDivProperties);

            if (task._textContentStream) {
              task._layoutText(textDiv);
            }

            if (task._enhanceTextSelection) {
              var angleCos = 1,
                angleSin = 0;

              if (angle !== 0) {
                angleCos = Math.cos(angle);
                angleSin = Math.sin(angle);
              }

              var divWidth = (style.vertical ? geom.height : geom.width) * task._viewport.scale;
              var divHeight = fontHeight;
              var m, b;

              if (angle !== 0) {
                m = [angleCos, angleSin, -angleSin, angleCos, left, top];
                b = _util.Util.getAxialAlignedBoundingBox([0, 0, divWidth, divHeight], m);
              } else {
                b = [left, top, left + divWidth, top + divHeight];
              }

              task._bounds.push({
                left: b[0],
                top: b[1],
                right: b[2],
                bottom: b[3],
                div: textDiv,
                size: [divWidth, divHeight],
                m: m
              });
            }
          }

          function render(task) {
            if (task._canceled) {
              return;
            }

            var textDivs = task._textDivs;
            var capability = task._capability;
            var textDivsLength = textDivs.length;

            if (textDivsLength > MAX_TEXT_DIVS_TO_RENDER) {
              task._renderingDone = true;
              capability.resolve();
              return;
            }

            if (!task._textContentStream) {
              for (var i = 0; i < textDivsLength; i++) {
                task._layoutText(textDivs[i]);
              }
            }

            task._renderingDone = true;
            capability.resolve();
          }

          function expand(task) {
            var bounds = task._bounds;
            var viewport = task._viewport;
            var expanded = expandBounds(viewport.width, viewport.height, bounds);

            for (var i = 0; i < expanded.length; i++) {
              var div = bounds[i].div;

              var divProperties = task._textDivProperties.get(div);

              if (divProperties.angle === 0) {
                divProperties.paddingLeft = bounds[i].left - expanded[i].left;
                divProperties.paddingTop = bounds[i].top - expanded[i].top;
                divProperties.paddingRight = expanded[i].right - bounds[i].right;
                divProperties.paddingBottom = expanded[i].bottom - bounds[i].bottom;

                task._textDivProperties.set(div, divProperties);

                continue;
              }

              var e = expanded[i],
                b = bounds[i];
              var m = b.m,
                c = m[0],
                s = m[1];
              var points = [[0, 0], [0, b.size[1]], [b.size[0], 0], b.size];
              var ts = new Float64Array(64);
              points.forEach(function (p, i) {
                var t = _util.Util.applyTransform(p, m);

                ts[i + 0] = c && (e.left - t[0]) / c;
                ts[i + 4] = s && (e.top - t[1]) / s;
                ts[i + 8] = c && (e.right - t[0]) / c;
                ts[i + 12] = s && (e.bottom - t[1]) / s;
                ts[i + 16] = s && (e.left - t[0]) / -s;
                ts[i + 20] = c && (e.top - t[1]) / c;
                ts[i + 24] = s && (e.right - t[0]) / -s;
                ts[i + 28] = c && (e.bottom - t[1]) / c;
                ts[i + 32] = c && (e.left - t[0]) / -c;
                ts[i + 36] = s && (e.top - t[1]) / -s;
                ts[i + 40] = c && (e.right - t[0]) / -c;
                ts[i + 44] = s && (e.bottom - t[1]) / -s;
                ts[i + 48] = s && (e.left - t[0]) / s;
                ts[i + 52] = c && (e.top - t[1]) / -c;
                ts[i + 56] = s && (e.right - t[0]) / s;
                ts[i + 60] = c && (e.bottom - t[1]) / -c;
              });

              var findPositiveMin = function findPositiveMin(ts, offset, count) {
                var result = 0;

                for (var i = 0; i < count; i++) {
                  var t = ts[offset++];

                  if (t > 0) {
                    result = result ? Math.min(t, result) : t;
                  }
                }

                return result;
              };

              var boxScale = 1 + Math.min(Math.abs(c), Math.abs(s));
              divProperties.paddingLeft = findPositiveMin(ts, 32, 16) / boxScale;
              divProperties.paddingTop = findPositiveMin(ts, 48, 16) / boxScale;
              divProperties.paddingRight = findPositiveMin(ts, 0, 16) / boxScale;
              divProperties.paddingBottom = findPositiveMin(ts, 16, 16) / boxScale;

              task._textDivProperties.set(div, divProperties);
            }
          }

          function expandBounds(width, height, boxes) {
            var bounds = boxes.map(function (box, i) {
              return {
                x1: box.left,
                y1: box.top,
                x2: box.right,
                y2: box.bottom,
                index: i,
                x1New: undefined,
                x2New: undefined
              };
            });
            expandBoundsLTR(width, bounds);
            var expanded = new Array(boxes.length);
            bounds.forEach(function (b) {
              var i = b.index;
              expanded[i] = {
                left: b.x1New,
                top: 0,
                right: b.x2New,
                bottom: 0
              };
            });
            boxes.map(function (box, i) {
              var e = expanded[i],
                b = bounds[i];
              b.x1 = box.top;
              b.y1 = width - e.right;
              b.x2 = box.bottom;
              b.y2 = width - e.left;
              b.index = i;
              b.x1New = undefined;
              b.x2New = undefined;
            });
            expandBoundsLTR(height, bounds);
            bounds.forEach(function (b) {
              var i = b.index;
              expanded[i].top = b.x1New;
              expanded[i].bottom = b.x2New;
            });
            return expanded;
          }

          function expandBoundsLTR(width, bounds) {
            bounds.sort(function (a, b) {
              return a.x1 - b.x1 || a.index - b.index;
            });
            var fakeBoundary = {
              x1: -Infinity,
              y1: -Infinity,
              x2: 0,
              y2: Infinity,
              index: -1,
              x1New: 0,
              x2New: 0
            };
            var horizon = [{
              start: -Infinity,
              end: Infinity,
              boundary: fakeBoundary
            }];
            bounds.forEach(function (boundary) {
              var i = 0;

              while (i < horizon.length && horizon[i].end <= boundary.y1) {
                i++;
              }

              var j = horizon.length - 1;

              while (j >= 0 && horizon[j].start >= boundary.y2) {
                j--;
              }

              var horizonPart, affectedBoundary;
              var q,
                k,
                maxXNew = -Infinity;

              for (q = i; q <= j; q++) {
                horizonPart = horizon[q];
                affectedBoundary = horizonPart.boundary;
                var xNew;

                if (affectedBoundary.x2 > boundary.x1) {
                  xNew = affectedBoundary.index > boundary.index ? affectedBoundary.x1New : boundary.x1;
                } else if (affectedBoundary.x2New === undefined) {
                  xNew = (affectedBoundary.x2 + boundary.x1) / 2;
                } else {
                  xNew = affectedBoundary.x2New;
                }

                if (xNew > maxXNew) {
                  maxXNew = xNew;
                }
              }

              boundary.x1New = maxXNew;

              for (q = i; q <= j; q++) {
                horizonPart = horizon[q];
                affectedBoundary = horizonPart.boundary;

                if (affectedBoundary.x2New === undefined) {
                  if (affectedBoundary.x2 > boundary.x1) {
                    if (affectedBoundary.index > boundary.index) {
                      affectedBoundary.x2New = affectedBoundary.x2;
                    }
                  } else {
                    affectedBoundary.x2New = maxXNew;
                  }
                } else if (affectedBoundary.x2New > maxXNew) {
                  affectedBoundary.x2New = Math.max(maxXNew, affectedBoundary.x2);
                }
              }

              var changedHorizon = [],
                lastBoundary = null;

              for (q = i; q <= j; q++) {
                horizonPart = horizon[q];
                affectedBoundary = horizonPart.boundary;
                var useBoundary = affectedBoundary.x2 > boundary.x2 ? affectedBoundary : boundary;

                if (lastBoundary === useBoundary) {
                  changedHorizon[changedHorizon.length - 1].end = horizonPart.end;
                } else {
                  changedHorizon.push({
                    start: horizonPart.start,
                    end: horizonPart.end,
                    boundary: useBoundary
                  });
                  lastBoundary = useBoundary;
                }
              }

              if (horizon[i].start < boundary.y1) {
                changedHorizon[0].start = boundary.y1;
                changedHorizon.unshift({
                  start: horizon[i].start,
                  end: boundary.y1,
                  boundary: horizon[i].boundary
                });
              }

              if (boundary.y2 < horizon[j].end) {
                changedHorizon[changedHorizon.length - 1].end = boundary.y2;
                changedHorizon.push({
                  start: boundary.y2,
                  end: horizon[j].end,
                  boundary: horizon[j].boundary
                });
              }

              for (q = i; q <= j; q++) {
                horizonPart = horizon[q];
                affectedBoundary = horizonPart.boundary;

                if (affectedBoundary.x2New !== undefined) {
                  continue;
                }

                var used = false;

                for (k = i - 1; !used && k >= 0 && horizon[k].start >= affectedBoundary.y1; k--) {
                  used = horizon[k].boundary === affectedBoundary;
                }

                for (k = j + 1; !used && k < horizon.length && horizon[k].end <= affectedBoundary.y2; k++) {
                  used = horizon[k].boundary === affectedBoundary;
                }

                for (k = 0; !used && k < changedHorizon.length; k++) {
                  used = changedHorizon[k].boundary === affectedBoundary;
                }

                if (!used) {
                  affectedBoundary.x2New = maxXNew;
                }
              }

              Array.prototype.splice.apply(horizon, [i, j - i + 1].concat(changedHorizon));
            });
            horizon.forEach(function (horizonPart) {
              var affectedBoundary = horizonPart.boundary;

              if (affectedBoundary.x2New === undefined) {
                affectedBoundary.x2New = Math.max(width, affectedBoundary.x2);
              }
            });
          }

          function TextLayerRenderTask(_ref) {
            var textContent = _ref.textContent,
              textContentStream = _ref.textContentStream,
              container = _ref.container,
              viewport = _ref.viewport,
              textDivs = _ref.textDivs,
              textContentItemsStr = _ref.textContentItemsStr,
              enhanceTextSelection = _ref.enhanceTextSelection;
            this._textContent = textContent;
            this._textContentStream = textContentStream;
            this._container = container;
            this._viewport = viewport;
            this._textDivs = textDivs || [];
            this._textContentItemsStr = textContentItemsStr || [];
            this._enhanceTextSelection = !!enhanceTextSelection;
            this._fontInspectorEnabled = !!(_global_scope.default.FontInspector && _global_scope.default.FontInspector.enabled);
            this._reader = null;
            this._layoutTextLastFontSize = null;
            this._layoutTextLastFontFamily = null;
            this._layoutTextCtx = null;
            this._textDivProperties = new WeakMap();
            this._renderingDone = false;
            this._canceled = false;
            this._capability = (0, _util.createPromiseCapability)();
            this._renderTimer = null;
            this._bounds = [];
          }

          TextLayerRenderTask.prototype = {
            get promise() {
              return this._capability.promise;
            },

            cancel: function TextLayer_cancel() {
              if (this._reader) {
                this._reader.cancel(new _util.AbortException('text layer task cancelled'));

                this._reader = null;
              }

              this._canceled = true;

              if (this._renderTimer !== null) {
                clearTimeout(this._renderTimer);
                this._renderTimer = null;
              }

              this._capability.reject('canceled');
            },
            _processItems: function _processItems(items, styleCache) {
              for (var i = 0, len = items.length; i < len; i++) {
                this._textContentItemsStr.push(items[i].str);

                appendText(this, items[i], styleCache);
              }
            },
            _layoutText: function _layoutText(textDiv) {
              var textLayerFrag = this._container;

              var textDivProperties = this._textDivProperties.get(textDiv);

              if (textDivProperties.isWhitespace) {
                return;
              }

              var fontSize = textDiv.style.fontSize;
              var fontFamily = textDiv.style.fontFamily;

              if (fontSize !== this._layoutTextLastFontSize || fontFamily !== this._layoutTextLastFontFamily) {
                this._layoutTextCtx.font = fontSize + ' ' + fontFamily;
                this._layoutTextLastFontSize = fontSize;
                this._layoutTextLastFontFamily = fontFamily;
              }

              var width = this._layoutTextCtx.measureText(textDiv.textContent).width;

              var transform = '';

              if (textDivProperties.canvasWidth !== 0 && width > 0) {
                textDivProperties.scale = textDivProperties.canvasWidth / width;
                transform = "scaleX(".concat(textDivProperties.scale, ")");
              }

              if (textDivProperties.angle !== 0) {
                transform = "rotate(".concat(textDivProperties.angle, "deg) ").concat(transform);
              }

              if (transform.length > 0) {
                textDivProperties.originalTransform = transform;
                textDiv.style.transform = transform;
              }

              this._textDivProperties.set(textDiv, textDivProperties);

              textLayerFrag.appendChild(textDiv);
            },
            _render: function TextLayer_render(timeout) {
              var _this = this;

              var capability = (0, _util.createPromiseCapability)();
              var styleCache = Object.create(null);
              var canvas = document.createElement('canvas');
              canvas.mozOpaque = true;
              this._layoutTextCtx = canvas.getContext('2d', {
                alpha: false
              });

              if (this._textContent) {
                var textItems = this._textContent.items;
                var textStyles = this._textContent.styles;

                this._processItems(textItems, textStyles);

                capability.resolve();
              } else if (this._textContentStream) {
                var pump = function pump() {
                  _this._reader.read().then(function (_ref2) {
                    var value = _ref2.value,
                      done = _ref2.done;

                    if (done) {
                      capability.resolve();
                      return;
                    }

                    Object.assign(styleCache, value.styles);

                    _this._processItems(value.items, styleCache);

                    pump();
                  }, capability.reject);
                };

                this._reader = this._textContentStream.getReader();
                pump();
              } else {
                throw new Error('Neither "textContent" nor "textContentStream"' + ' parameters specified.');
              }

              capability.promise.then(function () {
                styleCache = null;

                if (!timeout) {
                  render(_this);
                } else {
                  _this._renderTimer = setTimeout(function () {
                    render(_this);
                    _this._renderTimer = null;
                  }, timeout);
                }
              }, this._capability.reject);
            },
            expandTextDivs: function TextLayer_expandTextDivs(expandDivs) {
              if (!this._enhanceTextSelection || !this._renderingDone) {
                return;
              }

              if (this._bounds !== null) {
                expand(this);
                this._bounds = null;
              }

              for (var i = 0, ii = this._textDivs.length; i < ii; i++) {
                var div = this._textDivs[i];

                var divProperties = this._textDivProperties.get(div);

                if (divProperties.isWhitespace) {
                  continue;
                }

                if (expandDivs) {
                  var transform = '',
                    padding = '';

                  if (divProperties.scale !== 1) {
                    transform = 'scaleX(' + divProperties.scale + ')';
                  }

                  if (divProperties.angle !== 0) {
                    transform = 'rotate(' + divProperties.angle + 'deg) ' + transform;
                  }

                  if (divProperties.paddingLeft !== 0) {
                    padding += ' padding-left: ' + divProperties.paddingLeft / divProperties.scale + 'px;';
                    transform += ' translateX(' + -divProperties.paddingLeft / divProperties.scale + 'px)';
                  }

                  if (divProperties.paddingTop !== 0) {
                    padding += ' padding-top: ' + divProperties.paddingTop + 'px;';
                    transform += ' translateY(' + -divProperties.paddingTop + 'px)';
                  }

                  if (divProperties.paddingRight !== 0) {
                    padding += ' padding-right: ' + divProperties.paddingRight / divProperties.scale + 'px;';
                  }

                  if (divProperties.paddingBottom !== 0) {
                    padding += ' padding-bottom: ' + divProperties.paddingBottom + 'px;';
                  }

                  if (padding !== '') {
                    div.setAttribute('style', divProperties.style + padding);
                  }

                  if (transform !== '') {
                    div.style.transform = transform;
                  }
                } else {
                  div.style.padding = 0;
                  div.style.transform = divProperties.originalTransform || '';
                }
              }
            }
          };

          function renderTextLayer(renderParameters) {
            var task = new TextLayerRenderTask({
              textContent: renderParameters.textContent,
              textContentStream: renderParameters.textContentStream,
              container: renderParameters.container,
              viewport: renderParameters.viewport,
              textDivs: renderParameters.textDivs,
              textContentItemsStr: renderParameters.textContentItemsStr,
              enhanceTextSelection: renderParameters.enhanceTextSelection
            });

            task._render(renderParameters.timeout);

            return task;
          }

          return renderTextLayer;
        }();

        exports.renderTextLayer = renderTextLayer;

        /***/
      }),
      /* 163 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.AnnotationLayer = void 0;

        var _dom_utils = __w_pdfjs_require__(151);

        var _util = __w_pdfjs_require__(1);

        function _get(target, property, receiver) {
          if (typeof Reflect !== "undefined" && Reflect.get) {
            _get = Reflect.get;
          } else {
            _get = function _get(target, property, receiver) {
              var base = _superPropBase(target, property);
              if (!base) return;
              var desc = Object.getOwnPropertyDescriptor(base, property);
              if (desc.get) {
                return desc.get.call(receiver);
              }
              return desc.value;
            };
          }
          return _get(target, property, receiver || target);
        }

        function _superPropBase(object, property) {
          while (!Object.prototype.hasOwnProperty.call(object, property)) {
            object = _getPrototypeOf(object);
            if (object === null) break;
          }
          return object;
        }

        function _typeof(obj) {
          if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof = function _typeof(obj) {
              return typeof obj;
            };
          } else {
            _typeof = function _typeof(obj) {
              return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
          }
          return _typeof(obj);
        }

        function _possibleConstructorReturn(self, call) {
          if (call && (_typeof(call) === "object" || typeof call === "function")) {
            return call;
          }
          return _assertThisInitialized(self);
        }

        function _assertThisInitialized(self) {
          if (self === void 0) {
            throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
          }
          return self;
        }

        function _getPrototypeOf(o) {
          _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
            return o.__proto__ || Object.getPrototypeOf(o);
          };
          return _getPrototypeOf(o);
        }

        function _inherits(subClass, superClass) {
          if (typeof superClass !== "function" && superClass !== null) {
            throw new TypeError("Super expression must either be null or a function");
          }
          subClass.prototype = Object.create(superClass && superClass.prototype, {
            constructor: {
              value: subClass,
              writable: true,
              configurable: true
            }
          });
          if (superClass) _setPrototypeOf(subClass, superClass);
        }

        function _setPrototypeOf(o, p) {
          _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
            o.__proto__ = p;
            return o;
          };
          return _setPrototypeOf(o, p);
        }

        function _classCallCheck(instance, Constructor) {
          if (!(instance instanceof Constructor)) {
            throw new TypeError("Cannot call a class as a function");
          }
        }

        function _defineProperties(target, props) {
          for (var i = 0; i < props.length; i++) {
            var descriptor = props[i];
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ("value" in descriptor) descriptor.writable = true;
            Object.defineProperty(target, descriptor.key, descriptor);
          }
        }

        function _createClass(Constructor, protoProps, staticProps) {
          if (protoProps) _defineProperties(Constructor.prototype, protoProps);
          if (staticProps) _defineProperties(Constructor, staticProps);
          return Constructor;
        }

        var AnnotationElementFactory =
          /*#__PURE__*/
          function () {
            function AnnotationElementFactory() {
              _classCallCheck(this, AnnotationElementFactory);
            }

            _createClass(AnnotationElementFactory, null, [{
              key: "create",
              value: function create(parameters) {
                var subtype = parameters.data.annotationType;

                switch (subtype) {
                  case _util.AnnotationType.LINK:
                    return new LinkAnnotationElement(parameters);

                  case _util.AnnotationType.TEXT:
                    return new TextAnnotationElement(parameters);

                  case _util.AnnotationType.WIDGET:
                    var fieldType = parameters.data.fieldType;

                    switch (fieldType) {
                      case 'Tx':
                        return new TextWidgetAnnotationElement(parameters);

                      case 'Btn':
                        if (parameters.data.radioButton) {
                          return new RadioButtonWidgetAnnotationElement(parameters);
                        } else if (parameters.data.checkBox) {
                          return new CheckboxWidgetAnnotationElement(parameters);
                        }

                        return new PushButtonWidgetAnnotationElement(parameters);

                      case 'Ch':
                        return new ChoiceWidgetAnnotationElement(parameters);
                    }

                    return new WidgetAnnotationElement(parameters);

                  case _util.AnnotationType.POPUP:
                    return new PopupAnnotationElement(parameters);

                  case _util.AnnotationType.LINE:
                    return new LineAnnotationElement(parameters);

                  case _util.AnnotationType.SQUARE:
                    return new SquareAnnotationElement(parameters);

                  case _util.AnnotationType.CIRCLE:
                    return new CircleAnnotationElement(parameters);

                  case _util.AnnotationType.POLYLINE:
                    return new PolylineAnnotationElement(parameters);

                  case _util.AnnotationType.INK:
                    return new InkAnnotationElement(parameters);

                  case _util.AnnotationType.POLYGON:
                    return new PolygonAnnotationElement(parameters);

                  case _util.AnnotationType.HIGHLIGHT:
                    return new HighlightAnnotationElement(parameters);

                  case _util.AnnotationType.UNDERLINE:
                    return new UnderlineAnnotationElement(parameters);

                  case _util.AnnotationType.SQUIGGLY:
                    return new SquigglyAnnotationElement(parameters);

                  case _util.AnnotationType.STRIKEOUT:
                    return new StrikeOutAnnotationElement(parameters);

                  case _util.AnnotationType.STAMP:
                    return new StampAnnotationElement(parameters);

                  case _util.AnnotationType.FILEATTACHMENT:
                    return new FileAttachmentAnnotationElement(parameters);

                  default:
                    return new AnnotationElement(parameters);
                }
              }
            }]);

            return AnnotationElementFactory;
          }();

        var AnnotationElement =
          /*#__PURE__*/
          function () {
            function AnnotationElement(parameters) {
              var isRenderable = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
              var ignoreBorder = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

              _classCallCheck(this, AnnotationElement);

              this.isRenderable = isRenderable;
              this.data = parameters.data;
              this.layer = parameters.layer;
              this.page = parameters.page;
              this.viewport = parameters.viewport;
              this.linkService = parameters.linkService;
              this.downloadManager = parameters.downloadManager;
              this.imageResourcesPath = parameters.imageResourcesPath;
              this.renderInteractiveForms = parameters.renderInteractiveForms;
              this.svgFactory = parameters.svgFactory;

              if (isRenderable) {
                this.container = this._createContainer(ignoreBorder);
              }
            }

            _createClass(AnnotationElement, [{
              key: "_createContainer",
              value: function _createContainer() {
                var ignoreBorder = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
                var data = this.data,
                  page = this.page,
                  viewport = this.viewport;
                var container = document.createElement('section');
                var width = data.rect[2] - data.rect[0];
                var height = data.rect[3] - data.rect[1];
                container.setAttribute('data-annotation-id', data.id);

                var rect = _util.Util.normalizeRect([data.rect[0], page.view[3] - data.rect[1] + page.view[1], data.rect[2], page.view[3] - data.rect[3] + page.view[1]]);

                container.style.transform = 'matrix(' + viewport.transform.join(',') + ')';
                container.style.transformOrigin = -rect[0] + 'px ' + -rect[1] + 'px';

                if (!ignoreBorder && data.borderStyle.width > 0) {
                  container.style.borderWidth = data.borderStyle.width + 'px';

                  if (data.borderStyle.style !== _util.AnnotationBorderStyleType.UNDERLINE) {
                    width = width - 2 * data.borderStyle.width;
                    height = height - 2 * data.borderStyle.width;
                  }

                  var horizontalRadius = data.borderStyle.horizontalCornerRadius;
                  var verticalRadius = data.borderStyle.verticalCornerRadius;

                  if (horizontalRadius > 0 || verticalRadius > 0) {
                    var radius = horizontalRadius + 'px / ' + verticalRadius + 'px';
                    container.style.borderRadius = radius;
                  }

                  switch (data.borderStyle.style) {
                    case _util.AnnotationBorderStyleType.SOLID:
                      container.style.borderStyle = 'solid';
                      break;

                    case _util.AnnotationBorderStyleType.DASHED:
                      container.style.borderStyle = 'dashed';
                      break;

                    case _util.AnnotationBorderStyleType.BEVELED:
                      (0, _util.warn)('Unimplemented border style: beveled');
                      break;

                    case _util.AnnotationBorderStyleType.INSET:
                      (0, _util.warn)('Unimplemented border style: inset');
                      break;

                    case _util.AnnotationBorderStyleType.UNDERLINE:
                      container.style.borderBottomStyle = 'solid';
                      break;

                    default:
                      break;
                  }

                  if (data.color) {
                    container.style.borderColor = _util.Util.makeCssRgb(data.color[0] | 0, data.color[1] | 0, data.color[2] | 0);
                  } else {
                    container.style.borderWidth = 0;
                  }
                }

                container.style.left = rect[0] + 'px';
                container.style.top = rect[1] + 'px';
                container.style.width = width + 'px';
                container.style.height = height + 'px';
                return container;
              }
            }, {
              key: "_createPopup",
              value: function _createPopup(container, trigger, data) {
                if (!trigger) {
                  trigger = document.createElement('div');
                  trigger.style.height = container.style.height;
                  trigger.style.width = container.style.width;
                  container.appendChild(trigger);
                }

                var popupElement = new PopupElement({
                  container: container,
                  trigger: trigger,
                  color: data.color,
                  title: data.title,
                  contents: data.contents,
                  hideWrapper: true
                });
                var popup = popupElement.render();
                popup.style.left = container.style.width;
                container.appendChild(popup);
              }
            }, {
              key: "render",
              value: function render() {
                (0, _util.unreachable)('Abstract method `AnnotationElement.render` called');
              }
            }]);

            return AnnotationElement;
          }();

        var LinkAnnotationElement =
          /*#__PURE__*/
          function (_AnnotationElement) {
            _inherits(LinkAnnotationElement, _AnnotationElement);

            function LinkAnnotationElement(parameters) {
              _classCallCheck(this, LinkAnnotationElement);

              var isRenderable = !!(parameters.data.url || parameters.data.dest || parameters.data.action);
              return _possibleConstructorReturn(this, _getPrototypeOf(LinkAnnotationElement).call(this, parameters, isRenderable));
            }

            _createClass(LinkAnnotationElement, [{
              key: "render",
              value: function render() {
                this.container.className = 'linkAnnotation';
                var data = this.data,
                  linkService = this.linkService;
                var link = document.createElement('a');
                (0, _dom_utils.addLinkAttributes)(link, {
                  url: data.url,
                  target: data.newWindow ? _dom_utils.LinkTarget.BLANK : linkService.externalLinkTarget,
                  rel: linkService.externalLinkRel
                });

                if (!data.url) {
                  if (data.action) {
                    this._bindNamedAction(link, data.action);
                  } else {
                    this._bindLink(link, data.dest);
                  }
                }

                this.container.appendChild(link);
                return this.container;
              }
            }, {
              key: "_bindLink",
              value: function _bindLink(link, destination) {
                var _this = this;

                link.href = this.linkService.getDestinationHash(destination);

                link.onclick = function () {
                  if (destination) {
                    _this.linkService.navigateTo(destination);
                  }

                  return false;
                };

                if (destination) {
                  link.className = 'internalLink';
                }
              }
            }, {
              key: "_bindNamedAction",
              value: function _bindNamedAction(link, action) {
                var _this2 = this;

                link.href = this.linkService.getAnchorUrl('');

                link.onclick = function () {
                  _this2.linkService.executeNamedAction(action);

                  return false;
                };

                link.className = 'internalLink';
              }
            }]);

            return LinkAnnotationElement;
          }(AnnotationElement);

        var TextAnnotationElement =
          /*#__PURE__*/
          function (_AnnotationElement2) {
            _inherits(TextAnnotationElement, _AnnotationElement2);

            function TextAnnotationElement(parameters) {
              _classCallCheck(this, TextAnnotationElement);

              var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
              return _possibleConstructorReturn(this, _getPrototypeOf(TextAnnotationElement).call(this, parameters, isRenderable));
            }

            _createClass(TextAnnotationElement, [{
              key: "render",
              value: function render() {
                this.container.className = 'textAnnotation';
                var image = document.createElement('img');
                image.style.height = this.container.style.height;
                image.style.width = this.container.style.width;
                image.src = this.imageResourcesPath + 'annotation-' + this.data.name.toLowerCase() + '.svg';
                image.alt = '[{{type}} Annotation]';
                image.dataset.l10nId = 'text_annotation_type';
                image.dataset.l10nArgs = JSON.stringify({
                  type: this.data.name
                });

                if (!this.data.hasPopup) {
                  this._createPopup(this.container, image, this.data);
                }

                this.container.appendChild(image);
                return this.container;
              }
            }]);

            return TextAnnotationElement;
          }(AnnotationElement);

        var WidgetAnnotationElement =
          /*#__PURE__*/
          function (_AnnotationElement3) {
            _inherits(WidgetAnnotationElement, _AnnotationElement3);

            function WidgetAnnotationElement() {
              _classCallCheck(this, WidgetAnnotationElement);

              return _possibleConstructorReturn(this, _getPrototypeOf(WidgetAnnotationElement).apply(this, arguments));
            }

            _createClass(WidgetAnnotationElement, [{
              key: "render",
              value: function render() {
                return this.container;
              }
            }]);

            return WidgetAnnotationElement;
          }(AnnotationElement);

        var TextWidgetAnnotationElement =
          /*#__PURE__*/
          function (_WidgetAnnotationElem) {
            _inherits(TextWidgetAnnotationElement, _WidgetAnnotationElem);

            function TextWidgetAnnotationElement(parameters) {
              _classCallCheck(this, TextWidgetAnnotationElement);

              var isRenderable = parameters.renderInteractiveForms || !parameters.data.hasAppearance && !!parameters.data.fieldValue;
              return _possibleConstructorReturn(this, _getPrototypeOf(TextWidgetAnnotationElement).call(this, parameters, isRenderable));
            }

            _createClass(TextWidgetAnnotationElement, [{
              key: "render",
              value: function render() {
                var TEXT_ALIGNMENT = ['left', 'center', 'right'];
                this.container.className = 'textWidgetAnnotation';
                var element = null;

                if (this.renderInteractiveForms) {
                  if (this.data.multiLine) {
                    element = document.createElement('textarea');
                    element.textContent = this.data.fieldValue;
                  } else {
                    element = document.createElement('input');
                    element.type = 'text';
                    element.setAttribute('value', this.data.fieldValue);
                  }

                  element.disabled = this.data.readOnly;

                  if (this.data.maxLen !== null) {
                    element.maxLength = this.data.maxLen;
                  }

                  if (this.data.comb) {
                    var fieldWidth = this.data.rect[2] - this.data.rect[0];
                    var combWidth = fieldWidth / this.data.maxLen;
                    element.classList.add('comb');
                    element.style.letterSpacing = 'calc(' + combWidth + 'px - 1ch)';
                  }
                } else {
                  element = document.createElement('div');
                  element.textContent = this.data.fieldValue;
                  element.style.verticalAlign = 'middle';
                  element.style.display = 'table-cell';
                  var font = null;

                  if (this.data.fontRefName && this.page.commonObjs.has(this.data.fontRefName)) {
                    font = this.page.commonObjs.get(this.data.fontRefName);
                  }

                  this._setTextStyle(element, font);
                }

                if (this.data.textAlignment !== null) {
                  element.style.textAlign = TEXT_ALIGNMENT[this.data.textAlignment];
                }

                this.container.appendChild(element);
                return this.container;
              }
            }, {
              key: "_setTextStyle",
              value: function _setTextStyle(element, font) {
                var style = element.style;
                style.fontSize = this.data.fontSize + 'px';
                style.direction = this.data.fontDirection < 0 ? 'rtl' : 'ltr';

                if (!font) {
                  return;
                }

                style.fontWeight = font.black ? font.bold ? '900' : 'bold' : font.bold ? 'bold' : 'normal';
                style.fontStyle = font.italic ? 'italic' : 'normal';
                var fontFamily = font.loadedName ? '"' + font.loadedName + '", ' : '';
                var fallbackName = font.fallbackName || 'Helvetica, sans-serif';
                style.fontFamily = fontFamily + fallbackName;
              }
            }]);

            return TextWidgetAnnotationElement;
          }(WidgetAnnotationElement);

        var CheckboxWidgetAnnotationElement =
          /*#__PURE__*/
          function (_WidgetAnnotationElem2) {
            _inherits(CheckboxWidgetAnnotationElement, _WidgetAnnotationElem2);

            function CheckboxWidgetAnnotationElement(parameters) {
              _classCallCheck(this, CheckboxWidgetAnnotationElement);

              return _possibleConstructorReturn(this, _getPrototypeOf(CheckboxWidgetAnnotationElement).call(this, parameters, parameters.renderInteractiveForms));
            }

            _createClass(CheckboxWidgetAnnotationElement, [{
              key: "render",
              value: function render() {
                this.container.className = 'buttonWidgetAnnotation checkBox';
                var element = document.createElement('input');
                element.disabled = this.data.readOnly;
                element.type = 'checkbox';

                if (this.data.fieldValue && this.data.fieldValue !== 'Off') {
                  element.setAttribute('checked', true);
                }

                this.container.appendChild(element);
                return this.container;
              }
            }]);

            return CheckboxWidgetAnnotationElement;
          }(WidgetAnnotationElement);

        var RadioButtonWidgetAnnotationElement =
          /*#__PURE__*/
          function (_WidgetAnnotationElem3) {
            _inherits(RadioButtonWidgetAnnotationElement, _WidgetAnnotationElem3);

            function RadioButtonWidgetAnnotationElement(parameters) {
              _classCallCheck(this, RadioButtonWidgetAnnotationElement);

              return _possibleConstructorReturn(this, _getPrototypeOf(RadioButtonWidgetAnnotationElement).call(this, parameters, parameters.renderInteractiveForms));
            }

            _createClass(RadioButtonWidgetAnnotationElement, [{
              key: "render",
              value: function render() {
                this.container.className = 'buttonWidgetAnnotation radioButton';
                var element = document.createElement('input');
                element.disabled = this.data.readOnly;
                element.type = 'radio';
                element.name = this.data.fieldName;

                if (this.data.fieldValue === this.data.buttonValue) {
                  element.setAttribute('checked', true);
                }

                this.container.appendChild(element);
                return this.container;
              }
            }]);

            return RadioButtonWidgetAnnotationElement;
          }(WidgetAnnotationElement);

        var PushButtonWidgetAnnotationElement =
          /*#__PURE__*/
          function (_LinkAnnotationElemen) {
            _inherits(PushButtonWidgetAnnotationElement, _LinkAnnotationElemen);

            function PushButtonWidgetAnnotationElement() {
              _classCallCheck(this, PushButtonWidgetAnnotationElement);

              return _possibleConstructorReturn(this, _getPrototypeOf(PushButtonWidgetAnnotationElement).apply(this, arguments));
            }

            _createClass(PushButtonWidgetAnnotationElement, [{
              key: "render",
              value: function render() {
                var container = _get(_getPrototypeOf(PushButtonWidgetAnnotationElement.prototype), "render", this).call(this);

                container.className = 'buttonWidgetAnnotation pushButton';
                return container;
              }
            }]);

            return PushButtonWidgetAnnotationElement;
          }(LinkAnnotationElement);

        var ChoiceWidgetAnnotationElement =
          /*#__PURE__*/
          function (_WidgetAnnotationElem4) {
            _inherits(ChoiceWidgetAnnotationElement, _WidgetAnnotationElem4);

            function ChoiceWidgetAnnotationElement(parameters) {
              _classCallCheck(this, ChoiceWidgetAnnotationElement);

              return _possibleConstructorReturn(this, _getPrototypeOf(ChoiceWidgetAnnotationElement).call(this, parameters, parameters.renderInteractiveForms));
            }

            _createClass(ChoiceWidgetAnnotationElement, [{
              key: "render",
              value: function render() {
                this.container.className = 'choiceWidgetAnnotation';
                var selectElement = document.createElement('select');
                selectElement.disabled = this.data.readOnly;

                if (!this.data.combo) {
                  selectElement.size = this.data.options.length;

                  if (this.data.multiSelect) {
                    selectElement.multiple = true;
                  }
                }

                for (var i = 0, ii = this.data.options.length; i < ii; i++) {
                  var option = this.data.options[i];
                  var optionElement = document.createElement('option');
                  optionElement.textContent = option.displayValue;
                  optionElement.value = option.exportValue;

                  if (this.data.fieldValue.includes(option.displayValue)) {
                    optionElement.setAttribute('selected', true);
                  }

                  selectElement.appendChild(optionElement);
                }

                this.container.appendChild(selectElement);
                return this.container;
              }
            }]);

            return ChoiceWidgetAnnotationElement;
          }(WidgetAnnotationElement);

        var PopupAnnotationElement =
          /*#__PURE__*/
          function (_AnnotationElement4) {
            _inherits(PopupAnnotationElement, _AnnotationElement4);

            function PopupAnnotationElement(parameters) {
              _classCallCheck(this, PopupAnnotationElement);

              var isRenderable = !!(parameters.data.title || parameters.data.contents);
              return _possibleConstructorReturn(this, _getPrototypeOf(PopupAnnotationElement).call(this, parameters, isRenderable));
            }

            _createClass(PopupAnnotationElement, [{
              key: "render",
              value: function render() {
                var IGNORE_TYPES = ['Line', 'Square', 'Circle', 'PolyLine', 'Polygon', 'Ink'];
                this.container.className = 'popupAnnotation';

                if (IGNORE_TYPES.includes(this.data.parentType)) {
                  return this.container;
                }

                var selector = '[data-annotation-id="' + this.data.parentId + '"]';
                var parentElement = this.layer.querySelector(selector);

                if (!parentElement) {
                  return this.container;
                }

                var popup = new PopupElement({
                  container: this.container,
                  trigger: parentElement,
                  color: this.data.color,
                  title: this.data.title,
                  contents: this.data.contents
                });
                var parentLeft = parseFloat(parentElement.style.left);
                var parentWidth = parseFloat(parentElement.style.width);
                this.container.style.transformOrigin = -(parentLeft + parentWidth) + 'px -' + parentElement.style.top;
                this.container.style.left = parentLeft + parentWidth + 'px';
                this.container.appendChild(popup.render());
                return this.container;
              }
            }]);

            return PopupAnnotationElement;
          }(AnnotationElement);

        var PopupElement =
          /*#__PURE__*/
          function () {
            function PopupElement(parameters) {
              _classCallCheck(this, PopupElement);

              this.container = parameters.container;
              this.trigger = parameters.trigger;
              this.color = parameters.color;
              this.title = parameters.title;
              this.contents = parameters.contents;
              this.hideWrapper = parameters.hideWrapper || false;
              this.pinned = false;
            }

            _createClass(PopupElement, [{
              key: "render",
              value: function render() {
                var BACKGROUND_ENLIGHT = 0.7;
                var wrapper = document.createElement('div');
                wrapper.className = 'popupWrapper';
                this.hideElement = this.hideWrapper ? wrapper : this.container;
                this.hideElement.setAttribute('hidden', true);
                var popup = document.createElement('div');
                popup.className = 'popup';
                var color = this.color;

                if (color) {
                  var r = BACKGROUND_ENLIGHT * (255 - color[0]) + color[0];
                  var g = BACKGROUND_ENLIGHT * (255 - color[1]) + color[1];
                  var b = BACKGROUND_ENLIGHT * (255 - color[2]) + color[2];
                  popup.style.backgroundColor = _util.Util.makeCssRgb(r | 0, g | 0, b | 0);
                }

                var contents = this._formatContents(this.contents);

                var title = document.createElement('h1');
                title.textContent = this.title;
                this.trigger.addEventListener('click', this._toggle.bind(this));
                this.trigger.addEventListener('mouseover', this._show.bind(this, false));
                this.trigger.addEventListener('mouseout', this._hide.bind(this, false));
                popup.addEventListener('click', this._hide.bind(this, true));
                popup.appendChild(title);
                popup.appendChild(contents);
                wrapper.appendChild(popup);
                return wrapper;
              }
            }, {
              key: "_formatContents",
              value: function _formatContents(contents) {
                var p = document.createElement('p');
                var lines = contents.split(/(?:\r\n?|\n)/);

                for (var i = 0, ii = lines.length; i < ii; ++i) {
                  var line = lines[i];
                  p.appendChild(document.createTextNode(line));

                  if (i < ii - 1) {
                    p.appendChild(document.createElement('br'));
                  }
                }

                return p;
              }
            }, {
              key: "_toggle",
              value: function _toggle() {
                if (this.pinned) {
                  this._hide(true);
                } else {
                  this._show(true);
                }
              }
            }, {
              key: "_show",
              value: function _show() {
                var pin = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

                if (pin) {
                  this.pinned = true;
                }

                if (this.hideElement.hasAttribute('hidden')) {
                  this.hideElement.removeAttribute('hidden');
                  this.container.style.zIndex += 1;
                }
              }
            }, {
              key: "_hide",
              value: function _hide() {
                var unpin = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;

                if (unpin) {
                  this.pinned = false;
                }

                if (!this.hideElement.hasAttribute('hidden') && !this.pinned) {
                  this.hideElement.setAttribute('hidden', true);
                  this.container.style.zIndex -= 1;
                }
              }
            }]);

            return PopupElement;
          }();

        var LineAnnotationElement =
          /*#__PURE__*/
          function (_AnnotationElement5) {
            _inherits(LineAnnotationElement, _AnnotationElement5);

            function LineAnnotationElement(parameters) {
              _classCallCheck(this, LineAnnotationElement);

              var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
              return _possibleConstructorReturn(this, _getPrototypeOf(LineAnnotationElement).call(this, parameters, isRenderable, true));
            }

            _createClass(LineAnnotationElement, [{
              key: "render",
              value: function render() {
                this.container.className = 'lineAnnotation';
                var data = this.data;
                var width = data.rect[2] - data.rect[0];
                var height = data.rect[3] - data.rect[1];
                var svg = this.svgFactory.create(width, height);
                var line = this.svgFactory.createElement('svg:line');
                line.setAttribute('x1', data.rect[2] - data.lineCoordinates[0]);
                line.setAttribute('y1', data.rect[3] - data.lineCoordinates[1]);
                line.setAttribute('x2', data.rect[2] - data.lineCoordinates[2]);
                line.setAttribute('y2', data.rect[3] - data.lineCoordinates[3]);
                line.setAttribute('stroke-width', data.borderStyle.width);
                line.setAttribute('stroke', 'transparent');
                svg.appendChild(line);
                this.container.append(svg);

                this._createPopup(this.container, line, data);

                return this.container;
              }
            }]);

            return LineAnnotationElement;
          }(AnnotationElement);

        var SquareAnnotationElement =
          /*#__PURE__*/
          function (_AnnotationElement6) {
            _inherits(SquareAnnotationElement, _AnnotationElement6);

            function SquareAnnotationElement(parameters) {
              _classCallCheck(this, SquareAnnotationElement);

              var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
              return _possibleConstructorReturn(this, _getPrototypeOf(SquareAnnotationElement).call(this, parameters, isRenderable, true));
            }

            _createClass(SquareAnnotationElement, [{
              key: "render",
              value: function render() {
                this.container.className = 'squareAnnotation';
                var data = this.data;
                var width = data.rect[2] - data.rect[0];
                var height = data.rect[3] - data.rect[1];
                var svg = this.svgFactory.create(width, height);
                var borderWidth = data.borderStyle.width;
                var square = this.svgFactory.createElement('svg:rect');
                square.setAttribute('x', borderWidth / 2);
                square.setAttribute('y', borderWidth / 2);
                square.setAttribute('width', width - borderWidth);
                square.setAttribute('height', height - borderWidth);
                square.setAttribute('stroke-width', borderWidth);
                square.setAttribute('stroke', 'transparent');
                square.setAttribute('fill', 'none');
                svg.appendChild(square);
                this.container.append(svg);

                this._createPopup(this.container, square, data);

                return this.container;
              }
            }]);

            return SquareAnnotationElement;
          }(AnnotationElement);

        var CircleAnnotationElement =
          /*#__PURE__*/
          function (_AnnotationElement7) {
            _inherits(CircleAnnotationElement, _AnnotationElement7);

            function CircleAnnotationElement(parameters) {
              _classCallCheck(this, CircleAnnotationElement);

              var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
              return _possibleConstructorReturn(this, _getPrototypeOf(CircleAnnotationElement).call(this, parameters, isRenderable, true));
            }

            _createClass(CircleAnnotationElement, [{
              key: "render",
              value: function render() {
                this.container.className = 'circleAnnotation';
                var data = this.data;
                var width = data.rect[2] - data.rect[0];
                var height = data.rect[3] - data.rect[1];
                var svg = this.svgFactory.create(width, height);
                var borderWidth = data.borderStyle.width;
                var circle = this.svgFactory.createElement('svg:ellipse');
                circle.setAttribute('cx', width / 2);
                circle.setAttribute('cy', height / 2);
                circle.setAttribute('rx', width / 2 - borderWidth / 2);
                circle.setAttribute('ry', height / 2 - borderWidth / 2);
                circle.setAttribute('stroke-width', borderWidth);
                circle.setAttribute('stroke', 'transparent');
                circle.setAttribute('fill', 'none');
                svg.appendChild(circle);
                this.container.append(svg);

                this._createPopup(this.container, circle, data);

                return this.container;
              }
            }]);

            return CircleAnnotationElement;
          }(AnnotationElement);

        var PolylineAnnotationElement =
          /*#__PURE__*/
          function (_AnnotationElement8) {
            _inherits(PolylineAnnotationElement, _AnnotationElement8);

            function PolylineAnnotationElement(parameters) {
              var _this3;

              _classCallCheck(this, PolylineAnnotationElement);

              var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
              _this3 = _possibleConstructorReturn(this, _getPrototypeOf(PolylineAnnotationElement).call(this, parameters, isRenderable, true));
              _this3.containerClassName = 'polylineAnnotation';
              _this3.svgElementName = 'svg:polyline';
              return _this3;
            }

            _createClass(PolylineAnnotationElement, [{
              key: "render",
              value: function render() {
                this.container.className = this.containerClassName;
                var data = this.data;
                var width = data.rect[2] - data.rect[0];
                var height = data.rect[3] - data.rect[1];
                var svg = this.svgFactory.create(width, height);
                var vertices = data.vertices;
                var points = [];

                for (var i = 0, ii = vertices.length; i < ii; i++) {
                  var x = vertices[i].x - data.rect[0];
                  var y = data.rect[3] - vertices[i].y;
                  points.push(x + ',' + y);
                }

                points = points.join(' ');
                var borderWidth = data.borderStyle.width;
                var polyline = this.svgFactory.createElement(this.svgElementName);
                polyline.setAttribute('points', points);
                polyline.setAttribute('stroke-width', borderWidth);
                polyline.setAttribute('stroke', 'transparent');
                polyline.setAttribute('fill', 'none');
                svg.appendChild(polyline);
                this.container.append(svg);

                this._createPopup(this.container, polyline, data);

                return this.container;
              }
            }]);

            return PolylineAnnotationElement;
          }(AnnotationElement);

        var PolygonAnnotationElement =
          /*#__PURE__*/
          function (_PolylineAnnotationEl) {
            _inherits(PolygonAnnotationElement, _PolylineAnnotationEl);

            function PolygonAnnotationElement(parameters) {
              var _this4;

              _classCallCheck(this, PolygonAnnotationElement);

              _this4 = _possibleConstructorReturn(this, _getPrototypeOf(PolygonAnnotationElement).call(this, parameters));
              _this4.containerClassName = 'polygonAnnotation';
              _this4.svgElementName = 'svg:polygon';
              return _this4;
            }

            return PolygonAnnotationElement;
          }(PolylineAnnotationElement);

        var InkAnnotationElement =
          /*#__PURE__*/
          function (_AnnotationElement9) {
            _inherits(InkAnnotationElement, _AnnotationElement9);

            function InkAnnotationElement(parameters) {
              var _this5;

              _classCallCheck(this, InkAnnotationElement);

              var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
              _this5 = _possibleConstructorReturn(this, _getPrototypeOf(InkAnnotationElement).call(this, parameters, isRenderable, true));
              _this5.containerClassName = 'inkAnnotation';
              _this5.svgElementName = 'svg:polyline';
              return _this5;
            }

            _createClass(InkAnnotationElement, [{
              key: "render",
              value: function render() {
                this.container.className = this.containerClassName;
                var data = this.data;
                var width = data.rect[2] - data.rect[0];
                var height = data.rect[3] - data.rect[1];
                var svg = this.svgFactory.create(width, height);
                var inkLists = data.inkLists;

                for (var i = 0, ii = inkLists.length; i < ii; i++) {
                  var inkList = inkLists[i];
                  var points = [];

                  for (var j = 0, jj = inkList.length; j < jj; j++) {
                    var x = inkList[j].x - data.rect[0];
                    var y = data.rect[3] - inkList[j].y;
                    points.push(x + ',' + y);
                  }

                  points = points.join(' ');
                  var borderWidth = data.borderStyle.width;
                  var polyline = this.svgFactory.createElement(this.svgElementName);
                  polyline.setAttribute('points', points);
                  polyline.setAttribute('stroke-width', borderWidth);
                  polyline.setAttribute('stroke', 'transparent');
                  polyline.setAttribute('fill', 'none');

                  this._createPopup(this.container, polyline, data);

                  svg.appendChild(polyline);
                }

                this.container.append(svg);
                return this.container;
              }
            }]);

            return InkAnnotationElement;
          }(AnnotationElement);

        var HighlightAnnotationElement =
          /*#__PURE__*/
          function (_AnnotationElement10) {
            _inherits(HighlightAnnotationElement, _AnnotationElement10);

            function HighlightAnnotationElement(parameters) {
              _classCallCheck(this, HighlightAnnotationElement);

              var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
              return _possibleConstructorReturn(this, _getPrototypeOf(HighlightAnnotationElement).call(this, parameters, isRenderable, true));
            }

            _createClass(HighlightAnnotationElement, [{
              key: "render",
              value: function render() {
                this.container.className = 'highlightAnnotation';

                if (!this.data.hasPopup) {
                  this._createPopup(this.container, null, this.data);
                }

                return this.container;
              }
            }]);

            return HighlightAnnotationElement;
          }(AnnotationElement);

        var UnderlineAnnotationElement =
          /*#__PURE__*/
          function (_AnnotationElement11) {
            _inherits(UnderlineAnnotationElement, _AnnotationElement11);

            function UnderlineAnnotationElement(parameters) {
              _classCallCheck(this, UnderlineAnnotationElement);

              var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
              return _possibleConstructorReturn(this, _getPrototypeOf(UnderlineAnnotationElement).call(this, parameters, isRenderable, true));
            }

            _createClass(UnderlineAnnotationElement, [{
              key: "render",
              value: function render() {
                this.container.className = 'underlineAnnotation';

                if (!this.data.hasPopup) {
                  this._createPopup(this.container, null, this.data);
                }

                return this.container;
              }
            }]);

            return UnderlineAnnotationElement;
          }(AnnotationElement);

        var SquigglyAnnotationElement =
          /*#__PURE__*/
          function (_AnnotationElement12) {
            _inherits(SquigglyAnnotationElement, _AnnotationElement12);

            function SquigglyAnnotationElement(parameters) {
              _classCallCheck(this, SquigglyAnnotationElement);

              var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
              return _possibleConstructorReturn(this, _getPrototypeOf(SquigglyAnnotationElement).call(this, parameters, isRenderable, true));
            }

            _createClass(SquigglyAnnotationElement, [{
              key: "render",
              value: function render() {
                this.container.className = 'squigglyAnnotation';

                if (!this.data.hasPopup) {
                  this._createPopup(this.container, null, this.data);
                }

                return this.container;
              }
            }]);

            return SquigglyAnnotationElement;
          }(AnnotationElement);

        var StrikeOutAnnotationElement =
          /*#__PURE__*/
          function (_AnnotationElement13) {
            _inherits(StrikeOutAnnotationElement, _AnnotationElement13);

            function StrikeOutAnnotationElement(parameters) {
              _classCallCheck(this, StrikeOutAnnotationElement);

              var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
              return _possibleConstructorReturn(this, _getPrototypeOf(StrikeOutAnnotationElement).call(this, parameters, isRenderable, true));
            }

            _createClass(StrikeOutAnnotationElement, [{
              key: "render",
              value: function render() {
                this.container.className = 'strikeoutAnnotation';

                if (!this.data.hasPopup) {
                  this._createPopup(this.container, null, this.data);
                }

                return this.container;
              }
            }]);

            return StrikeOutAnnotationElement;
          }(AnnotationElement);

        var StampAnnotationElement =
          /*#__PURE__*/
          function (_AnnotationElement14) {
            _inherits(StampAnnotationElement, _AnnotationElement14);

            function StampAnnotationElement(parameters) {
              _classCallCheck(this, StampAnnotationElement);

              var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
              return _possibleConstructorReturn(this, _getPrototypeOf(StampAnnotationElement).call(this, parameters, isRenderable, true));
            }

            _createClass(StampAnnotationElement, [{
              key: "render",
              value: function render() {
                this.container.className = 'stampAnnotation';

                if (!this.data.hasPopup) {
                  this._createPopup(this.container, null, this.data);
                }

                return this.container;
              }
            }]);

            return StampAnnotationElement;
          }(AnnotationElement);

        var FileAttachmentAnnotationElement =
          /*#__PURE__*/
          function (_AnnotationElement15) {
            _inherits(FileAttachmentAnnotationElement, _AnnotationElement15);

            function FileAttachmentAnnotationElement(parameters) {
              var _this6;

              _classCallCheck(this, FileAttachmentAnnotationElement);

              _this6 = _possibleConstructorReturn(this, _getPrototypeOf(FileAttachmentAnnotationElement).call(this, parameters, true));
              var _this6$data$file = _this6.data.file,
                filename = _this6$data$file.filename,
                content = _this6$data$file.content;
              _this6.filename = (0, _dom_utils.getFilenameFromUrl)(filename);
              _this6.content = content;

              if (_this6.linkService.eventBus) {
                _this6.linkService.eventBus.dispatch('fileattachmentannotation', {
                  source: _assertThisInitialized(_assertThisInitialized(_this6)),
                  id: (0, _util.stringToPDFString)(filename),
                  filename: filename,
                  content: content
                });
              }

              return _this6;
            }

            _createClass(FileAttachmentAnnotationElement, [{
              key: "render",
              value: function render() {
                this.container.className = 'fileAttachmentAnnotation';
                var trigger = document.createElement('div');
                trigger.style.height = this.container.style.height;
                trigger.style.width = this.container.style.width;
                trigger.addEventListener('dblclick', this._download.bind(this));

                if (!this.data.hasPopup && (this.data.title || this.data.contents)) {
                  this._createPopup(this.container, trigger, this.data);
                }

                this.container.appendChild(trigger);
                return this.container;
              }
            }, {
              key: "_download",
              value: function _download() {
                if (!this.downloadManager) {
                  (0, _util.warn)('Download cannot be started due to unavailable download manager');
                  return;
                }

                this.downloadManager.downloadData(this.content, this.filename, '');
              }
            }]);

            return FileAttachmentAnnotationElement;
          }(AnnotationElement);

        var AnnotationLayer =
          /*#__PURE__*/
          function () {
            function AnnotationLayer() {
              _classCallCheck(this, AnnotationLayer);
            }

            _createClass(AnnotationLayer, null, [{
              key: "render",
              value: function render(parameters) {
                for (var i = 0, ii = parameters.annotations.length; i < ii; i++) {
                  var data = parameters.annotations[i];

                  if (!data) {
                    continue;
                  }

                  var element = AnnotationElementFactory.create({
                    data: data,
                    layer: parameters.div,
                    page: parameters.page,
                    viewport: parameters.viewport,
                    linkService: parameters.linkService,
                    downloadManager: parameters.downloadManager,
                    imageResourcesPath: parameters.imageResourcesPath || '',
                    renderInteractiveForms: parameters.renderInteractiveForms || false,
                    svgFactory: new _dom_utils.DOMSVGFactory()
                  });

                  if (element.isRenderable) {
                    parameters.div.appendChild(element.render());
                  }
                }
              }
            }, {
              key: "update",
              value: function update(parameters) {
                for (var i = 0, ii = parameters.annotations.length; i < ii; i++) {
                  var data = parameters.annotations[i];
                  var element = parameters.div.querySelector('[data-annotation-id="' + data.id + '"]');

                  if (element) {
                    element.style.transform = 'matrix(' + parameters.viewport.transform.join(',') + ')';
                  }
                }

                parameters.div.removeAttribute('hidden');
              }
            }]);

            return AnnotationLayer;
          }();

        exports.AnnotationLayer = AnnotationLayer;

        /***/
      }),
      /* 164 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.SVGGraphics = void 0;

        var _util = __w_pdfjs_require__(1);

        var _dom_utils = __w_pdfjs_require__(151);

        var _is_node = _interopRequireDefault(__w_pdfjs_require__(4));

        function _interopRequireDefault(obj) {
          return obj && obj.__esModule ? obj : {default: obj};
        }

        var SVGGraphics = function SVGGraphics() {
          throw new Error('Not implemented: SVGGraphics');
        };

        exports.SVGGraphics = SVGGraphics;
        {
          var SVG_DEFAULTS = {
            fontStyle: 'normal',
            fontWeight: 'normal',
            fillColor: '#000000'
          };

          var convertImgDataToPng = function convertImgDataToPngClosure() {
            var PNG_HEADER = new Uint8Array([0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a]);
            var CHUNK_WRAPPER_SIZE = 12;
            var crcTable = new Int32Array(256);

            for (var i = 0; i < 256; i++) {
              var c = i;

              for (var h = 0; h < 8; h++) {
                if (c & 1) {
                  c = 0xedB88320 ^ c >> 1 & 0x7fffffff;
                } else {
                  c = c >> 1 & 0x7fffffff;
                }
              }

              crcTable[i] = c;
            }

            function crc32(data, start, end) {
              var crc = -1;

              for (var i = start; i < end; i++) {
                var a = (crc ^ data[i]) & 0xff;
                var b = crcTable[a];
                crc = crc >>> 8 ^ b;
              }

              return crc ^ -1;
            }

            function writePngChunk(type, body, data, offset) {
              var p = offset;
              var len = body.length;
              data[p] = len >> 24 & 0xff;
              data[p + 1] = len >> 16 & 0xff;
              data[p + 2] = len >> 8 & 0xff;
              data[p + 3] = len & 0xff;
              p += 4;
              data[p] = type.charCodeAt(0) & 0xff;
              data[p + 1] = type.charCodeAt(1) & 0xff;
              data[p + 2] = type.charCodeAt(2) & 0xff;
              data[p + 3] = type.charCodeAt(3) & 0xff;
              p += 4;
              data.set(body, p);
              p += body.length;
              var crc = crc32(data, offset + 4, p);
              data[p] = crc >> 24 & 0xff;
              data[p + 1] = crc >> 16 & 0xff;
              data[p + 2] = crc >> 8 & 0xff;
              data[p + 3] = crc & 0xff;
            }

            function adler32(data, start, end) {
              var a = 1;
              var b = 0;

              for (var i = start; i < end; ++i) {
                a = (a + (data[i] & 0xff)) % 65521;
                b = (b + a) % 65521;
              }

              return b << 16 | a;
            }

            function deflateSync(literals) {
              if (!(0, _is_node.default)()) {
                return deflateSyncUncompressed(literals);
              }

              try {
                var input;

                if (parseInt(process.versions.node) >= 8) {
                  input = literals;
                } else {
                  input = new Buffer(literals);
                }

                var output = require('zlib').deflateSync(input, {
                  level: 9
                });

                return output instanceof Uint8Array ? output : new Uint8Array(output);
              } catch (e) {
                (0, _util.warn)('Not compressing PNG because zlib.deflateSync is unavailable: ' + e);
              }

              return deflateSyncUncompressed(literals);
            }

            function deflateSyncUncompressed(literals) {
              var len = literals.length;
              var maxBlockLength = 0xFFFF;
              var deflateBlocks = Math.ceil(len / maxBlockLength);
              var idat = new Uint8Array(2 + len + deflateBlocks * 5 + 4);
              var pi = 0;
              idat[pi++] = 0x78;
              idat[pi++] = 0x9c;
              var pos = 0;

              while (len > maxBlockLength) {
                idat[pi++] = 0x00;
                idat[pi++] = 0xff;
                idat[pi++] = 0xff;
                idat[pi++] = 0x00;
                idat[pi++] = 0x00;
                idat.set(literals.subarray(pos, pos + maxBlockLength), pi);
                pi += maxBlockLength;
                pos += maxBlockLength;
                len -= maxBlockLength;
              }

              idat[pi++] = 0x01;
              idat[pi++] = len & 0xff;
              idat[pi++] = len >> 8 & 0xff;
              idat[pi++] = ~len & 0xffff & 0xff;
              idat[pi++] = (~len & 0xffff) >> 8 & 0xff;
              idat.set(literals.subarray(pos), pi);
              pi += literals.length - pos;
              var adler = adler32(literals, 0, literals.length);
              idat[pi++] = adler >> 24 & 0xff;
              idat[pi++] = adler >> 16 & 0xff;
              idat[pi++] = adler >> 8 & 0xff;
              idat[pi++] = adler & 0xff;
              return idat;
            }

            function encode(imgData, kind, forceDataSchema, isMask) {
              var width = imgData.width;
              var height = imgData.height;
              var bitDepth, colorType, lineSize;
              var bytes = imgData.data;

              switch (kind) {
                case _util.ImageKind.GRAYSCALE_1BPP:
                  colorType = 0;
                  bitDepth = 1;
                  lineSize = width + 7 >> 3;
                  break;

                case _util.ImageKind.RGB_24BPP:
                  colorType = 2;
                  bitDepth = 8;
                  lineSize = width * 3;
                  break;

                case _util.ImageKind.RGBA_32BPP:
                  colorType = 6;
                  bitDepth = 8;
                  lineSize = width * 4;
                  break;

                default:
                  throw new Error('invalid format');
              }

              var literals = new Uint8Array((1 + lineSize) * height);
              var offsetLiterals = 0,
                offsetBytes = 0;
              var y, i;

              for (y = 0; y < height; ++y) {
                literals[offsetLiterals++] = 0;
                literals.set(bytes.subarray(offsetBytes, offsetBytes + lineSize), offsetLiterals);
                offsetBytes += lineSize;
                offsetLiterals += lineSize;
              }

              if (kind === _util.ImageKind.GRAYSCALE_1BPP && isMask) {
                offsetLiterals = 0;

                for (y = 0; y < height; y++) {
                  offsetLiterals++;

                  for (i = 0; i < lineSize; i++) {
                    literals[offsetLiterals++] ^= 0xFF;
                  }
                }
              }

              var ihdr = new Uint8Array([width >> 24 & 0xff, width >> 16 & 0xff, width >> 8 & 0xff, width & 0xff, height >> 24 & 0xff, height >> 16 & 0xff, height >> 8 & 0xff, height & 0xff, bitDepth, colorType, 0x00, 0x00, 0x00]);
              var idat = deflateSync(literals);
              var pngLength = PNG_HEADER.length + CHUNK_WRAPPER_SIZE * 3 + ihdr.length + idat.length;
              var data = new Uint8Array(pngLength);
              var offset = 0;
              data.set(PNG_HEADER, offset);
              offset += PNG_HEADER.length;
              writePngChunk('IHDR', ihdr, data, offset);
              offset += CHUNK_WRAPPER_SIZE + ihdr.length;
              writePngChunk('IDATA', idat, data, offset);
              offset += CHUNK_WRAPPER_SIZE + idat.length;
              writePngChunk('IEND', new Uint8Array(0), data, offset);
              return (0, _util.createObjectURL)(data, 'image/png', forceDataSchema);
            }

            return function convertImgDataToPng(imgData, forceDataSchema, isMask) {
              var kind = imgData.kind === undefined ? _util.ImageKind.GRAYSCALE_1BPP : imgData.kind;
              return encode(imgData, kind, forceDataSchema, isMask);
            };
          }();

          var SVGExtraState = function SVGExtraStateClosure() {
            function SVGExtraState() {
              this.fontSizeScale = 1;
              this.fontWeight = SVG_DEFAULTS.fontWeight;
              this.fontSize = 0;
              this.textMatrix = _util.IDENTITY_MATRIX;
              this.fontMatrix = _util.FONT_IDENTITY_MATRIX;
              this.leading = 0;
              this.textRenderingMode = _util.TextRenderingMode.FILL;
              this.x = 0;
              this.y = 0;
              this.lineX = 0;
              this.lineY = 0;
              this.charSpacing = 0;
              this.wordSpacing = 0;
              this.textHScale = 1;
              this.textRise = 0;
              this.fillColor = SVG_DEFAULTS.fillColor;
              this.strokeColor = '#000000';
              this.fillAlpha = 1;
              this.strokeAlpha = 1;
              this.lineWidth = 1;
              this.lineJoin = '';
              this.lineCap = '';
              this.miterLimit = 0;
              this.dashArray = [];
              this.dashPhase = 0;
              this.dependencies = [];
              this.activeClipUrl = null;
              this.clipGroup = null;
              this.maskId = '';
            }

            SVGExtraState.prototype = {
              clone: function SVGExtraState_clone() {
                return Object.create(this);
              },
              setCurrentPoint: function SVGExtraState_setCurrentPoint(x, y) {
                this.x = x;
                this.y = y;
              }
            };
            return SVGExtraState;
          }();

          exports.SVGGraphics = SVGGraphics = function SVGGraphicsClosure() {
            function opListToTree(opList) {
              var opTree = [];
              var tmp = [];
              var opListLen = opList.length;

              for (var x = 0; x < opListLen; x++) {
                if (opList[x].fn === 'save') {
                  opTree.push({
                    'fnId': 92,
                    'fn': 'group',
                    'items': []
                  });
                  tmp.push(opTree);
                  opTree = opTree[opTree.length - 1].items;
                  continue;
                }

                if (opList[x].fn === 'restore') {
                  opTree = tmp.pop();
                } else {
                  opTree.push(opList[x]);
                }
              }

              return opTree;
            }

            function pf(value) {
              if (Number.isInteger(value)) {
                return value.toString();
              }

              var s = value.toFixed(10);
              var i = s.length - 1;

              if (s[i] !== '0') {
                return s;
              }

              do {
                i--;
              } while (s[i] === '0');

              return s.substring(0, s[i] === '.' ? i : i + 1);
            }

            function pm(m) {
              if (m[4] === 0 && m[5] === 0) {
                if (m[1] === 0 && m[2] === 0) {
                  if (m[0] === 1 && m[3] === 1) {
                    return '';
                  }

                  return 'scale(' + pf(m[0]) + ' ' + pf(m[3]) + ')';
                }

                if (m[0] === m[3] && m[1] === -m[2]) {
                  var a = Math.acos(m[0]) * 180 / Math.PI;
                  return 'rotate(' + pf(a) + ')';
                }
              } else {
                if (m[0] === 1 && m[1] === 0 && m[2] === 0 && m[3] === 1) {
                  return 'translate(' + pf(m[4]) + ' ' + pf(m[5]) + ')';
                }
              }

              return 'matrix(' + pf(m[0]) + ' ' + pf(m[1]) + ' ' + pf(m[2]) + ' ' + pf(m[3]) + ' ' + pf(m[4]) + ' ' + pf(m[5]) + ')';
            }

            function SVGGraphics(commonObjs, objs, forceDataSchema) {
              this.svgFactory = new _dom_utils.DOMSVGFactory();
              this.current = new SVGExtraState();
              this.transformMatrix = _util.IDENTITY_MATRIX;
              this.transformStack = [];
              this.extraStack = [];
              this.commonObjs = commonObjs;
              this.objs = objs;
              this.pendingClip = null;
              this.pendingEOFill = false;
              this.embedFonts = false;
              this.embeddedFonts = Object.create(null);
              this.cssStyle = null;
              this.forceDataSchema = !!forceDataSchema;
            }

            var XML_NS = 'http://www.w3.org/XML/1998/namespace';
            var XLINK_NS = 'http://www.w3.org/1999/xlink';
            var LINE_CAP_STYLES = ['butt', 'round', 'square'];
            var LINE_JOIN_STYLES = ['miter', 'round', 'bevel'];
            var clipCount = 0;
            var maskCount = 0;
            SVGGraphics.prototype = {
              save: function SVGGraphics_save() {
                this.transformStack.push(this.transformMatrix);
                var old = this.current;
                this.extraStack.push(old);
                this.current = old.clone();
              },
              restore: function SVGGraphics_restore() {
                this.transformMatrix = this.transformStack.pop();
                this.current = this.extraStack.pop();
                this.pendingClip = null;
                this.tgrp = null;
              },
              group: function SVGGraphics_group(items) {
                this.save();
                this.executeOpTree(items);
                this.restore();
              },
              loadDependencies: function SVGGraphics_loadDependencies(operatorList) {
                var _this = this;

                var fnArray = operatorList.fnArray;
                var fnArrayLen = fnArray.length;
                var argsArray = operatorList.argsArray;

                for (var i = 0; i < fnArrayLen; i++) {
                  if (_util.OPS.dependency === fnArray[i]) {
                    var deps = argsArray[i];

                    for (var n = 0, nn = deps.length; n < nn; n++) {
                      var obj = deps[n];
                      var common = obj.substring(0, 2) === 'g_';
                      var promise;

                      if (common) {
                        promise = new Promise(function (resolve) {
                          _this.commonObjs.get(obj, resolve);
                        });
                      } else {
                        promise = new Promise(function (resolve) {
                          _this.objs.get(obj, resolve);
                        });
                      }

                      this.current.dependencies.push(promise);
                    }
                  }
                }

                return Promise.all(this.current.dependencies);
              },
              transform: function SVGGraphics_transform(a, b, c, d, e, f) {
                var transformMatrix = [a, b, c, d, e, f];
                this.transformMatrix = _util.Util.transform(this.transformMatrix, transformMatrix);
                this.tgrp = null;
              },
              getSVG: function SVGGraphics_getSVG(operatorList, viewport) {
                var _this2 = this;

                this.viewport = viewport;

                var svgElement = this._initialize(viewport);

                return this.loadDependencies(operatorList).then(function () {
                  _this2.transformMatrix = _util.IDENTITY_MATRIX;

                  var opTree = _this2.convertOpList(operatorList);

                  _this2.executeOpTree(opTree);

                  return svgElement;
                });
              },
              convertOpList: function SVGGraphics_convertOpList(operatorList) {
                var argsArray = operatorList.argsArray;
                var fnArray = operatorList.fnArray;
                var fnArrayLen = fnArray.length;
                var REVOPS = [];
                var opList = [];

                for (var op in _util.OPS) {
                  REVOPS[_util.OPS[op]] = op;
                }

                for (var x = 0; x < fnArrayLen; x++) {
                  var fnId = fnArray[x];
                  opList.push({
                    'fnId': fnId,
                    'fn': REVOPS[fnId],
                    'args': argsArray[x]
                  });
                }

                return opListToTree(opList);
              },
              executeOpTree: function SVGGraphics_executeOpTree(opTree) {
                var opTreeLen = opTree.length;

                for (var x = 0; x < opTreeLen; x++) {
                  var fn = opTree[x].fn;
                  var fnId = opTree[x].fnId;
                  var args = opTree[x].args;

                  switch (fnId | 0) {
                    case _util.OPS.beginText:
                      this.beginText();
                      break;

                    case _util.OPS.dependency:
                      break;

                    case _util.OPS.setLeading:
                      this.setLeading(args);
                      break;

                    case _util.OPS.setLeadingMoveText:
                      this.setLeadingMoveText(args[0], args[1]);
                      break;

                    case _util.OPS.setFont:
                      this.setFont(args);
                      break;

                    case _util.OPS.showText:
                      this.showText(args[0]);
                      break;

                    case _util.OPS.showSpacedText:
                      this.showText(args[0]);
                      break;

                    case _util.OPS.endText:
                      this.endText();
                      break;

                    case _util.OPS.moveText:
                      this.moveText(args[0], args[1]);
                      break;

                    case _util.OPS.setCharSpacing:
                      this.setCharSpacing(args[0]);
                      break;

                    case _util.OPS.setWordSpacing:
                      this.setWordSpacing(args[0]);
                      break;

                    case _util.OPS.setHScale:
                      this.setHScale(args[0]);
                      break;

                    case _util.OPS.setTextMatrix:
                      this.setTextMatrix(args[0], args[1], args[2], args[3], args[4], args[5]);
                      break;

                    case _util.OPS.setTextRise:
                      this.setTextRise(args[0]);
                      break;

                    case _util.OPS.setTextRenderingMode:
                      this.setTextRenderingMode(args[0]);
                      break;

                    case _util.OPS.setLineWidth:
                      this.setLineWidth(args[0]);
                      break;

                    case _util.OPS.setLineJoin:
                      this.setLineJoin(args[0]);
                      break;

                    case _util.OPS.setLineCap:
                      this.setLineCap(args[0]);
                      break;

                    case _util.OPS.setMiterLimit:
                      this.setMiterLimit(args[0]);
                      break;

                    case _util.OPS.setFillRGBColor:
                      this.setFillRGBColor(args[0], args[1], args[2]);
                      break;

                    case _util.OPS.setStrokeRGBColor:
                      this.setStrokeRGBColor(args[0], args[1], args[2]);
                      break;

                    case _util.OPS.setDash:
                      this.setDash(args[0], args[1]);
                      break;

                    case _util.OPS.setGState:
                      this.setGState(args[0]);
                      break;

                    case _util.OPS.fill:
                      this.fill();
                      break;

                    case _util.OPS.eoFill:
                      this.eoFill();
                      break;

                    case _util.OPS.stroke:
                      this.stroke();
                      break;

                    case _util.OPS.fillStroke:
                      this.fillStroke();
                      break;

                    case _util.OPS.eoFillStroke:
                      this.eoFillStroke();
                      break;

                    case _util.OPS.clip:
                      this.clip('nonzero');
                      break;

                    case _util.OPS.eoClip:
                      this.clip('evenodd');
                      break;

                    case _util.OPS.paintSolidColorImageMask:
                      this.paintSolidColorImageMask();
                      break;

                    case _util.OPS.paintJpegXObject:
                      this.paintJpegXObject(args[0], args[1], args[2]);
                      break;

                    case _util.OPS.paintImageXObject:
                      this.paintImageXObject(args[0]);
                      break;

                    case _util.OPS.paintInlineImageXObject:
                      this.paintInlineImageXObject(args[0]);
                      break;

                    case _util.OPS.paintImageMaskXObject:
                      this.paintImageMaskXObject(args[0]);
                      break;

                    case _util.OPS.paintFormXObjectBegin:
                      this.paintFormXObjectBegin(args[0], args[1]);
                      break;

                    case _util.OPS.paintFormXObjectEnd:
                      this.paintFormXObjectEnd();
                      break;

                    case _util.OPS.closePath:
                      this.closePath();
                      break;

                    case _util.OPS.closeStroke:
                      this.closeStroke();
                      break;

                    case _util.OPS.closeFillStroke:
                      this.closeFillStroke();
                      break;

                    case _util.OPS.closeEOFillStroke:
                      this.closeEOFillStroke();
                      break;

                    case _util.OPS.nextLine:
                      this.nextLine();
                      break;

                    case _util.OPS.transform:
                      this.transform(args[0], args[1], args[2], args[3], args[4], args[5]);
                      break;

                    case _util.OPS.constructPath:
                      this.constructPath(args[0], args[1]);
                      break;

                    case _util.OPS.endPath:
                      this.endPath();
                      break;

                    case 92:
                      this.group(opTree[x].items);
                      break;

                    default:
                      (0, _util.warn)('Unimplemented operator ' + fn);
                      break;
                  }
                }
              },
              setWordSpacing: function SVGGraphics_setWordSpacing(wordSpacing) {
                this.current.wordSpacing = wordSpacing;
              },
              setCharSpacing: function SVGGraphics_setCharSpacing(charSpacing) {
                this.current.charSpacing = charSpacing;
              },
              nextLine: function SVGGraphics_nextLine() {
                this.moveText(0, this.current.leading);
              },
              setTextMatrix: function SVGGraphics_setTextMatrix(a, b, c, d, e, f) {
                var current = this.current;
                this.current.textMatrix = this.current.lineMatrix = [a, b, c, d, e, f];
                this.current.x = this.current.lineX = 0;
                this.current.y = this.current.lineY = 0;
                current.xcoords = [];
                current.tspan = this.svgFactory.createElement('svg:tspan');
                current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);
                current.tspan.setAttributeNS(null, 'font-size', pf(current.fontSize) + 'px');
                current.tspan.setAttributeNS(null, 'y', pf(-current.y));
                current.txtElement = this.svgFactory.createElement('svg:text');
                current.txtElement.appendChild(current.tspan);
              },
              beginText: function SVGGraphics_beginText() {
                this.current.x = this.current.lineX = 0;
                this.current.y = this.current.lineY = 0;
                this.current.textMatrix = _util.IDENTITY_MATRIX;
                this.current.lineMatrix = _util.IDENTITY_MATRIX;
                this.current.tspan = this.svgFactory.createElement('svg:tspan');
                this.current.txtElement = this.svgFactory.createElement('svg:text');
                this.current.txtgrp = this.svgFactory.createElement('svg:g');
                this.current.xcoords = [];
              },
              moveText: function SVGGraphics_moveText(x, y) {
                var current = this.current;
                this.current.x = this.current.lineX += x;
                this.current.y = this.current.lineY += y;
                current.xcoords = [];
                current.tspan = this.svgFactory.createElement('svg:tspan');
                current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);
                current.tspan.setAttributeNS(null, 'font-size', pf(current.fontSize) + 'px');
                current.tspan.setAttributeNS(null, 'y', pf(-current.y));
              },
              showText: function SVGGraphics_showText(glyphs) {
                var current = this.current;
                var font = current.font;
                var fontSize = current.fontSize;

                if (fontSize === 0) {
                  return;
                }

                var charSpacing = current.charSpacing;
                var wordSpacing = current.wordSpacing;
                var fontDirection = current.fontDirection;
                var textHScale = current.textHScale * fontDirection;
                var glyphsLength = glyphs.length;
                var vertical = font.vertical;
                var widthAdvanceScale = fontSize * current.fontMatrix[0];
                var x = 0,
                  i;

                for (i = 0; i < glyphsLength; ++i) {
                  var glyph = glyphs[i];

                  if (glyph === null) {
                    x += fontDirection * wordSpacing;
                    continue;
                  } else if ((0, _util.isNum)(glyph)) {
                    x += -glyph * fontSize * 0.001;
                    continue;
                  }

                  var width = glyph.width;
                  var character = glyph.fontChar;
                  var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing;
                  var charWidth = width * widthAdvanceScale + spacing * fontDirection;

                  if (!glyph.isInFont && !font.missingFile) {
                    x += charWidth;
                    continue;
                  }

                  current.xcoords.push(current.x + x * textHScale);
                  current.tspan.textContent += character;
                  x += charWidth;
                }

                if (vertical) {
                  current.y -= x * textHScale;
                } else {
                  current.x += x * textHScale;
                }

                current.tspan.setAttributeNS(null, 'x', current.xcoords.map(pf).join(' '));
                current.tspan.setAttributeNS(null, 'y', pf(-current.y));
                current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);
                current.tspan.setAttributeNS(null, 'font-size', pf(current.fontSize) + 'px');

                if (current.fontStyle !== SVG_DEFAULTS.fontStyle) {
                  current.tspan.setAttributeNS(null, 'font-style', current.fontStyle);
                }

                if (current.fontWeight !== SVG_DEFAULTS.fontWeight) {
                  current.tspan.setAttributeNS(null, 'font-weight', current.fontWeight);
                }

                var fillStrokeMode = current.textRenderingMode & _util.TextRenderingMode.FILL_STROKE_MASK;

                if (fillStrokeMode === _util.TextRenderingMode.FILL || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
                  if (current.fillColor !== SVG_DEFAULTS.fillColor) {
                    current.tspan.setAttributeNS(null, 'fill', current.fillColor);
                  }

                  if (current.fillAlpha < 1) {
                    current.tspan.setAttributeNS(null, 'fill-opacity', current.fillAlpha);
                  }
                } else if (current.textRenderingMode === _util.TextRenderingMode.ADD_TO_PATH) {
                  current.tspan.setAttributeNS(null, 'fill', 'transparent');
                } else {
                  current.tspan.setAttributeNS(null, 'fill', 'none');
                }

                if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
                  this._setStrokeAttributes(current.tspan);
                }

                var textMatrix = current.textMatrix;

                if (current.textRise !== 0) {
                  textMatrix = textMatrix.slice();
                  textMatrix[5] += current.textRise;
                }

                current.txtElement.setAttributeNS(null, 'transform', pm(textMatrix) + ' scale(1, -1)');
                current.txtElement.setAttributeNS(XML_NS, 'xml:space', 'preserve');
                current.txtElement.appendChild(current.tspan);
                current.txtgrp.appendChild(current.txtElement);

                this._ensureTransformGroup().appendChild(current.txtElement);
              },
              setLeadingMoveText: function SVGGraphics_setLeadingMoveText(x, y) {
                this.setLeading(-y);
                this.moveText(x, y);
              },
              addFontStyle: function SVGGraphics_addFontStyle(fontObj) {
                if (!this.cssStyle) {
                  this.cssStyle = this.svgFactory.createElement('svg:style');
                  this.cssStyle.setAttributeNS(null, 'type', 'text/css');
                  this.defs.appendChild(this.cssStyle);
                }

                var url = (0, _util.createObjectURL)(fontObj.data, fontObj.mimetype, this.forceDataSchema);
                this.cssStyle.textContent += '@font-face { font-family: "' + fontObj.loadedName + '";' + ' src: url(' + url + '); }\n';
              },
              setFont: function SVGGraphics_setFont(details) {
                var current = this.current;
                var fontObj = this.commonObjs.get(details[0]);
                var size = details[1];
                this.current.font = fontObj;

                if (this.embedFonts && fontObj.data && !this.embeddedFonts[fontObj.loadedName]) {
                  this.addFontStyle(fontObj);
                  this.embeddedFonts[fontObj.loadedName] = fontObj;
                }

                current.fontMatrix = fontObj.fontMatrix ? fontObj.fontMatrix : _util.FONT_IDENTITY_MATRIX;
                var bold = fontObj.black ? fontObj.bold ? 'bolder' : 'bold' : fontObj.bold ? 'bold' : 'normal';
                var italic = fontObj.italic ? 'italic' : 'normal';

                if (size < 0) {
                  size = -size;
                  current.fontDirection = -1;
                } else {
                  current.fontDirection = 1;
                }

                current.fontSize = size;
                current.fontFamily = fontObj.loadedName;
                current.fontWeight = bold;
                current.fontStyle = italic;
                current.tspan = this.svgFactory.createElement('svg:tspan');
                current.tspan.setAttributeNS(null, 'y', pf(-current.y));
                current.xcoords = [];
              },
              endText: function endText() {
                var current = this.current;

                if (current.textRenderingMode & _util.TextRenderingMode.ADD_TO_PATH_FLAG && current.txtElement && current.txtElement.hasChildNodes()) {
                  current.element = current.txtElement;
                  this.clip('nonzero');
                  this.endPath();
                }
              },
              setLineWidth: function SVGGraphics_setLineWidth(width) {
                if (width > 0) {
                  this.current.lineWidth = width;
                }
              },
              setLineCap: function SVGGraphics_setLineCap(style) {
                this.current.lineCap = LINE_CAP_STYLES[style];
              },
              setLineJoin: function SVGGraphics_setLineJoin(style) {
                this.current.lineJoin = LINE_JOIN_STYLES[style];
              },
              setMiterLimit: function SVGGraphics_setMiterLimit(limit) {
                this.current.miterLimit = limit;
              },
              setStrokeAlpha: function SVGGraphics_setStrokeAlpha(strokeAlpha) {
                this.current.strokeAlpha = strokeAlpha;
              },
              setStrokeRGBColor: function SVGGraphics_setStrokeRGBColor(r, g, b) {
                var color = _util.Util.makeCssRgb(r, g, b);

                this.current.strokeColor = color;
              },
              setFillAlpha: function SVGGraphics_setFillAlpha(fillAlpha) {
                this.current.fillAlpha = fillAlpha;
              },
              setFillRGBColor: function SVGGraphics_setFillRGBColor(r, g, b) {
                var color = _util.Util.makeCssRgb(r, g, b);

                this.current.fillColor = color;
                this.current.tspan = this.svgFactory.createElement('svg:tspan');
                this.current.xcoords = [];
              },
              setDash: function SVGGraphics_setDash(dashArray, dashPhase) {
                this.current.dashArray = dashArray;
                this.current.dashPhase = dashPhase;
              },
              constructPath: function SVGGraphics_constructPath(ops, args) {
                var current = this.current;
                var x = current.x,
                  y = current.y;
                current.path = this.svgFactory.createElement('svg:path');
                var d = [];
                var opLength = ops.length;

                for (var i = 0, j = 0; i < opLength; i++) {
                  switch (ops[i] | 0) {
                    case _util.OPS.rectangle:
                      x = args[j++];
                      y = args[j++];
                      var width = args[j++];
                      var height = args[j++];
                      var xw = x + width;
                      var yh = y + height;
                      d.push('M', pf(x), pf(y), 'L', pf(xw), pf(y), 'L', pf(xw), pf(yh), 'L', pf(x), pf(yh), 'Z');
                      break;

                    case _util.OPS.moveTo:
                      x = args[j++];
                      y = args[j++];
                      d.push('M', pf(x), pf(y));
                      break;

                    case _util.OPS.lineTo:
                      x = args[j++];
                      y = args[j++];
                      d.push('L', pf(x), pf(y));
                      break;

                    case _util.OPS.curveTo:
                      x = args[j + 4];
                      y = args[j + 5];
                      d.push('C', pf(args[j]), pf(args[j + 1]), pf(args[j + 2]), pf(args[j + 3]), pf(x), pf(y));
                      j += 6;
                      break;

                    case _util.OPS.curveTo2:
                      x = args[j + 2];
                      y = args[j + 3];
                      d.push('C', pf(x), pf(y), pf(args[j]), pf(args[j + 1]), pf(args[j + 2]), pf(args[j + 3]));
                      j += 4;
                      break;

                    case _util.OPS.curveTo3:
                      x = args[j + 2];
                      y = args[j + 3];
                      d.push('C', pf(args[j]), pf(args[j + 1]), pf(x), pf(y), pf(x), pf(y));
                      j += 4;
                      break;

                    case _util.OPS.closePath:
                      d.push('Z');
                      break;
                  }
                }

                current.path.setAttributeNS(null, 'd', d.join(' '));
                current.path.setAttributeNS(null, 'fill', 'none');

                this._ensureTransformGroup().appendChild(current.path);

                current.element = current.path;
                current.setCurrentPoint(x, y);
              },
              endPath: function SVGGraphics_endPath() {
                if (!this.pendingClip) {
                  return;
                }

                var current = this.current;
                var clipId = 'clippath' + clipCount;
                clipCount++;
                var clipPath = this.svgFactory.createElement('svg:clipPath');
                clipPath.setAttributeNS(null, 'id', clipId);
                clipPath.setAttributeNS(null, 'transform', pm(this.transformMatrix));
                var clipElement = current.element.cloneNode(true);

                if (this.pendingClip === 'evenodd') {
                  clipElement.setAttributeNS(null, 'clip-rule', 'evenodd');
                } else {
                  clipElement.setAttributeNS(null, 'clip-rule', 'nonzero');
                }

                this.pendingClip = null;
                clipPath.appendChild(clipElement);
                this.defs.appendChild(clipPath);

                if (current.activeClipUrl) {
                  current.clipGroup = null;
                  this.extraStack.forEach(function (prev) {
                    prev.clipGroup = null;
                  });
                  clipPath.setAttributeNS(null, 'clip-path', current.activeClipUrl);
                }

                current.activeClipUrl = 'url(#' + clipId + ')';
                this.tgrp = null;
              },
              clip: function SVGGraphics_clip(type) {
                this.pendingClip = type;
              },
              closePath: function SVGGraphics_closePath() {
                var current = this.current;

                if (current.path) {
                  var d = current.path.getAttributeNS(null, 'd');
                  d += 'Z';
                  current.path.setAttributeNS(null, 'd', d);
                }
              },
              setLeading: function SVGGraphics_setLeading(leading) {
                this.current.leading = -leading;
              },
              setTextRise: function SVGGraphics_setTextRise(textRise) {
                this.current.textRise = textRise;
              },
              setTextRenderingMode: function setTextRenderingMode(textRenderingMode) {
                this.current.textRenderingMode = textRenderingMode;
              },
              setHScale: function SVGGraphics_setHScale(scale) {
                this.current.textHScale = scale / 100;
              },
              setGState: function SVGGraphics_setGState(states) {
                for (var i = 0, ii = states.length; i < ii; i++) {
                  var state = states[i];
                  var key = state[0];
                  var value = state[1];

                  switch (key) {
                    case 'LW':
                      this.setLineWidth(value);
                      break;

                    case 'LC':
                      this.setLineCap(value);
                      break;

                    case 'LJ':
                      this.setLineJoin(value);
                      break;

                    case 'ML':
                      this.setMiterLimit(value);
                      break;

                    case 'D':
                      this.setDash(value[0], value[1]);
                      break;

                    case 'Font':
                      this.setFont(value);
                      break;

                    case 'CA':
                      this.setStrokeAlpha(value);
                      break;

                    case 'ca':
                      this.setFillAlpha(value);
                      break;

                    default:
                      (0, _util.warn)('Unimplemented graphic state ' + key);
                      break;
                  }
                }
              },
              fill: function SVGGraphics_fill() {
                var current = this.current;

                if (current.element) {
                  current.element.setAttributeNS(null, 'fill', current.fillColor);
                  current.element.setAttributeNS(null, 'fill-opacity', current.fillAlpha);
                  this.endPath();
                }
              },
              stroke: function SVGGraphics_stroke() {
                var current = this.current;

                if (current.element) {
                  this._setStrokeAttributes(current.element);

                  current.element.setAttributeNS(null, 'fill', 'none');
                  this.endPath();
                }
              },
              _setStrokeAttributes: function _setStrokeAttributes(element) {
                var current = this.current;
                element.setAttributeNS(null, 'stroke', current.strokeColor);
                element.setAttributeNS(null, 'stroke-opacity', current.strokeAlpha);
                element.setAttributeNS(null, 'stroke-miterlimit', pf(current.miterLimit));
                element.setAttributeNS(null, 'stroke-linecap', current.lineCap);
                element.setAttributeNS(null, 'stroke-linejoin', current.lineJoin);
                element.setAttributeNS(null, 'stroke-width', pf(current.lineWidth) + 'px');
                element.setAttributeNS(null, 'stroke-dasharray', current.dashArray.map(pf).join(' '));
                element.setAttributeNS(null, 'stroke-dashoffset', pf(current.dashPhase) + 'px');
              },
              eoFill: function SVGGraphics_eoFill() {
                if (this.current.element) {
                  this.current.element.setAttributeNS(null, 'fill-rule', 'evenodd');
                }

                this.fill();
              },
              fillStroke: function SVGGraphics_fillStroke() {
                this.stroke();
                this.fill();
              },
              eoFillStroke: function SVGGraphics_eoFillStroke() {
                if (this.current.element) {
                  this.current.element.setAttributeNS(null, 'fill-rule', 'evenodd');
                }

                this.fillStroke();
              },
              closeStroke: function SVGGraphics_closeStroke() {
                this.closePath();
                this.stroke();
              },
              closeFillStroke: function SVGGraphics_closeFillStroke() {
                this.closePath();
                this.fillStroke();
              },
              closeEOFillStroke: function closeEOFillStroke() {
                this.closePath();
                this.eoFillStroke();
              },
              paintSolidColorImageMask: function SVGGraphics_paintSolidColorImageMask() {
                var current = this.current;
                var rect = this.svgFactory.createElement('svg:rect');
                rect.setAttributeNS(null, 'x', '0');
                rect.setAttributeNS(null, 'y', '0');
                rect.setAttributeNS(null, 'width', '1px');
                rect.setAttributeNS(null, 'height', '1px');
                rect.setAttributeNS(null, 'fill', current.fillColor);

                this._ensureTransformGroup().appendChild(rect);
              },
              paintJpegXObject: function SVGGraphics_paintJpegXObject(objId, w, h) {
                var imgObj = this.objs.get(objId);
                var imgEl = this.svgFactory.createElement('svg:image');
                imgEl.setAttributeNS(XLINK_NS, 'xlink:href', imgObj.src);
                imgEl.setAttributeNS(null, 'width', pf(w));
                imgEl.setAttributeNS(null, 'height', pf(h));
                imgEl.setAttributeNS(null, 'x', '0');
                imgEl.setAttributeNS(null, 'y', pf(-h));
                imgEl.setAttributeNS(null, 'transform', 'scale(' + pf(1 / w) + ' ' + pf(-1 / h) + ')');

                this._ensureTransformGroup().appendChild(imgEl);
              },
              paintImageXObject: function SVGGraphics_paintImageXObject(objId) {
                var imgData = this.objs.get(objId);

                if (!imgData) {
                  (0, _util.warn)('Dependent image isn\'t ready yet');
                  return;
                }

                this.paintInlineImageXObject(imgData);
              },
              paintInlineImageXObject: function SVGGraphics_paintInlineImageXObject(imgData, mask) {
                var width = imgData.width;
                var height = imgData.height;
                var imgSrc = convertImgDataToPng(imgData, this.forceDataSchema, !!mask);
                var cliprect = this.svgFactory.createElement('svg:rect');
                cliprect.setAttributeNS(null, 'x', '0');
                cliprect.setAttributeNS(null, 'y', '0');
                cliprect.setAttributeNS(null, 'width', pf(width));
                cliprect.setAttributeNS(null, 'height', pf(height));
                this.current.element = cliprect;
                this.clip('nonzero');
                var imgEl = this.svgFactory.createElement('svg:image');
                imgEl.setAttributeNS(XLINK_NS, 'xlink:href', imgSrc);
                imgEl.setAttributeNS(null, 'x', '0');
                imgEl.setAttributeNS(null, 'y', pf(-height));
                imgEl.setAttributeNS(null, 'width', pf(width) + 'px');
                imgEl.setAttributeNS(null, 'height', pf(height) + 'px');
                imgEl.setAttributeNS(null, 'transform', 'scale(' + pf(1 / width) + ' ' + pf(-1 / height) + ')');

                if (mask) {
                  mask.appendChild(imgEl);
                } else {
                  this._ensureTransformGroup().appendChild(imgEl);
                }
              },
              paintImageMaskXObject: function SVGGraphics_paintImageMaskXObject(imgData) {
                var current = this.current;
                var width = imgData.width;
                var height = imgData.height;
                var fillColor = current.fillColor;
                current.maskId = 'mask' + maskCount++;
                var mask = this.svgFactory.createElement('svg:mask');
                mask.setAttributeNS(null, 'id', current.maskId);
                var rect = this.svgFactory.createElement('svg:rect');
                rect.setAttributeNS(null, 'x', '0');
                rect.setAttributeNS(null, 'y', '0');
                rect.setAttributeNS(null, 'width', pf(width));
                rect.setAttributeNS(null, 'height', pf(height));
                rect.setAttributeNS(null, 'fill', fillColor);
                rect.setAttributeNS(null, 'mask', 'url(#' + current.maskId + ')');
                this.defs.appendChild(mask);

                this._ensureTransformGroup().appendChild(rect);

                this.paintInlineImageXObject(imgData, mask);
              },
              paintFormXObjectBegin: function SVGGraphics_paintFormXObjectBegin(matrix, bbox) {
                if (Array.isArray(matrix) && matrix.length === 6) {
                  this.transform(matrix[0], matrix[1], matrix[2], matrix[3], matrix[4], matrix[5]);
                }

                if (bbox) {
                  var width = bbox[2] - bbox[0];
                  var height = bbox[3] - bbox[1];
                  var cliprect = this.svgFactory.createElement('svg:rect');
                  cliprect.setAttributeNS(null, 'x', bbox[0]);
                  cliprect.setAttributeNS(null, 'y', bbox[1]);
                  cliprect.setAttributeNS(null, 'width', pf(width));
                  cliprect.setAttributeNS(null, 'height', pf(height));
                  this.current.element = cliprect;
                  this.clip('nonzero');
                  this.endPath();
                }
              },
              paintFormXObjectEnd: function SVGGraphics_paintFormXObjectEnd() {
              },
              _initialize: function _initialize(viewport) {
                var svg = this.svgFactory.create(viewport.width, viewport.height);
                var definitions = this.svgFactory.createElement('svg:defs');
                svg.appendChild(definitions);
                this.defs = definitions;
                var rootGroup = this.svgFactory.createElement('svg:g');
                rootGroup.setAttributeNS(null, 'transform', pm(viewport.transform));
                svg.appendChild(rootGroup);
                this.svg = rootGroup;
                return svg;
              },
              _ensureClipGroup: function SVGGraphics_ensureClipGroup() {
                if (!this.current.clipGroup) {
                  var clipGroup = this.svgFactory.createElement('svg:g');
                  clipGroup.setAttributeNS(null, 'clip-path', this.current.activeClipUrl);
                  this.svg.appendChild(clipGroup);
                  this.current.clipGroup = clipGroup;
                }

                return this.current.clipGroup;
              },
              _ensureTransformGroup: function SVGGraphics_ensureTransformGroup() {
                if (!this.tgrp) {
                  this.tgrp = this.svgFactory.createElement('svg:g');
                  this.tgrp.setAttributeNS(null, 'transform', pm(this.transformMatrix));

                  if (this.current.activeClipUrl) {
                    this._ensureClipGroup().appendChild(this.tgrp);
                  } else {
                    this.svg.appendChild(this.tgrp);
                  }
                }

                return this.tgrp;
              }
            };
            return SVGGraphics;
          }();
        }

        /***/
      }),
      /* 165 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.PDFNodeStream = void 0;

        var _regenerator = _interopRequireDefault(__w_pdfjs_require__(147));

        var _util = __w_pdfjs_require__(1);

        var _network_utils = __w_pdfjs_require__(166);

        function _interopRequireDefault(obj) {
          return obj && obj.__esModule ? obj : {default: obj};
        }

        function _typeof(obj) {
          if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof = function _typeof(obj) {
              return typeof obj;
            };
          } else {
            _typeof = function _typeof(obj) {
              return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
          }
          return _typeof(obj);
        }

        function _possibleConstructorReturn(self, call) {
          if (call && (_typeof(call) === "object" || typeof call === "function")) {
            return call;
          }
          return _assertThisInitialized(self);
        }

        function _assertThisInitialized(self) {
          if (self === void 0) {
            throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
          }
          return self;
        }

        function _getPrototypeOf(o) {
          _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
            return o.__proto__ || Object.getPrototypeOf(o);
          };
          return _getPrototypeOf(o);
        }

        function _inherits(subClass, superClass) {
          if (typeof superClass !== "function" && superClass !== null) {
            throw new TypeError("Super expression must either be null or a function");
          }
          subClass.prototype = Object.create(superClass && superClass.prototype, {
            constructor: {
              value: subClass,
              writable: true,
              configurable: true
            }
          });
          if (superClass) _setPrototypeOf(subClass, superClass);
        }

        function _setPrototypeOf(o, p) {
          _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
            o.__proto__ = p;
            return o;
          };
          return _setPrototypeOf(o, p);
        }

        function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
          try {
            var info = gen[key](arg);
            var value = info.value;
          } catch (error) {
            reject(error);
            return;
          }
          if (info.done) {
            resolve(value);
          } else {
            Promise.resolve(value).then(_next, _throw);
          }
        }

        function _asyncToGenerator(fn) {
          return function () {
            var self = this, args = arguments;
            return new Promise(function (resolve, reject) {
              var gen = fn.apply(self, args);

              function _next(value) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
              }

              function _throw(err) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
              }

              _next(undefined);
            });
          };
        }

        function _classCallCheck(instance, Constructor) {
          if (!(instance instanceof Constructor)) {
            throw new TypeError("Cannot call a class as a function");
          }
        }

        function _defineProperties(target, props) {
          for (var i = 0; i < props.length; i++) {
            var descriptor = props[i];
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ("value" in descriptor) descriptor.writable = true;
            Object.defineProperty(target, descriptor.key, descriptor);
          }
        }

        function _createClass(Constructor, protoProps, staticProps) {
          if (protoProps) _defineProperties(Constructor.prototype, protoProps);
          if (staticProps) _defineProperties(Constructor, staticProps);
          return Constructor;
        }

        var fs = require('fs');

        var http = require('http');

        var https = require('https');

        var url = require('url');

        var fileUriRegex = /^file:\/\/\/[a-zA-Z]:\//;

        function parseUrl(sourceUrl) {
          var parsedUrl = url.parse(sourceUrl);

          if (parsedUrl.protocol === 'file:' || parsedUrl.host) {
            return parsedUrl;
          }

          if (/^[a-z]:[/\\]/i.test(sourceUrl)) {
            return url.parse("file:///".concat(sourceUrl));
          }

          if (!parsedUrl.host) {
            parsedUrl.protocol = 'file:';
          }

          return parsedUrl;
        }

        var PDFNodeStream =
          /*#__PURE__*/
          function () {
            function PDFNodeStream(source) {
              _classCallCheck(this, PDFNodeStream);

              this.source = source;
              this.url = parseUrl(source.url);
              this.isHttp = this.url.protocol === 'http:' || this.url.protocol === 'https:';
              this.isFsUrl = this.url.protocol === 'file:';
              this.httpHeaders = this.isHttp && source.httpHeaders || {};
              this._fullRequest = null;
              this._rangeRequestReaders = [];
            }

            _createClass(PDFNodeStream, [{
              key: "getFullReader",
              value: function getFullReader() {
                (0, _util.assert)(!this._fullRequest);
                this._fullRequest = this.isFsUrl ? new PDFNodeStreamFsFullReader(this) : new PDFNodeStreamFullReader(this);
                return this._fullRequest;
              }
            }, {
              key: "getRangeReader",
              value: function getRangeReader(start, end) {
                var rangeReader = this.isFsUrl ? new PDFNodeStreamFsRangeReader(this, start, end) : new PDFNodeStreamRangeReader(this, start, end);

                this._rangeRequestReaders.push(rangeReader);

                return rangeReader;
              }
            }, {
              key: "cancelAllRequests",
              value: function cancelAllRequests(reason) {
                if (this._fullRequest) {
                  this._fullRequest.cancel(reason);
                }

                var readers = this._rangeRequestReaders.slice(0);

                readers.forEach(function (reader) {
                  reader.cancel(reason);
                });
              }
            }]);

            return PDFNodeStream;
          }();

        exports.PDFNodeStream = PDFNodeStream;

        var BaseFullReader =
          /*#__PURE__*/
          function () {
            function BaseFullReader(stream) {
              _classCallCheck(this, BaseFullReader);

              this._url = stream.url;
              this._done = false;
              this._storedError = null;
              this.onProgress = null;
              var source = stream.source;
              this._contentLength = source.length;
              this._loaded = 0;
              this._filename = null;
              this._disableRange = source.disableRange || false;
              this._rangeChunkSize = source.rangeChunkSize;

              if (!this._rangeChunkSize && !this._disableRange) {
                this._disableRange = true;
              }

              this._isStreamingSupported = !source.disableStream;
              this._isRangeSupported = !source.disableRange;
              this._readableStream = null;
              this._readCapability = (0, _util.createPromiseCapability)();
              this._headersCapability = (0, _util.createPromiseCapability)();
            }

            _createClass(BaseFullReader, [{
              key: "read",
              value: function () {
                var _read = _asyncToGenerator(
                  /*#__PURE__*/
                  _regenerator.default.mark(function _callee() {
                    var chunk, buffer;
                    return _regenerator.default.wrap(function _callee$(_context) {
                      while (1) {
                        switch (_context.prev = _context.next) {
                          case 0:
                            _context.next = 2;
                            return this._readCapability.promise;

                          case 2:
                            if (!this._done) {
                              _context.next = 4;
                              break;
                            }

                            return _context.abrupt("return", {
                              value: undefined,
                              done: true
                            });

                          case 4:
                            if (!this._storedError) {
                              _context.next = 6;
                              break;
                            }

                            throw this._storedError;

                          case 6:
                            chunk = this._readableStream.read();

                            if (!(chunk === null)) {
                              _context.next = 10;
                              break;
                            }

                            this._readCapability = (0, _util.createPromiseCapability)();
                            return _context.abrupt("return", this.read());

                          case 10:
                            this._loaded += chunk.length;

                            if (this.onProgress) {
                              this.onProgress({
                                loaded: this._loaded,
                                total: this._contentLength
                              });
                            }

                            buffer = new Uint8Array(chunk).buffer;
                            return _context.abrupt("return", {
                              value: buffer,
                              done: false
                            });

                          case 14:
                          case "end":
                            return _context.stop();
                        }
                      }
                    }, _callee, this);
                  }));

                function read() {
                  return _read.apply(this, arguments);
                }

                return read;
              }()
            }, {
              key: "cancel",
              value: function cancel(reason) {
                if (!this._readableStream) {
                  this._error(reason);

                  return;
                }

                this._readableStream.destroy(reason);
              }
            }, {
              key: "_error",
              value: function _error(reason) {
                this._storedError = reason;

                this._readCapability.resolve();
              }
            }, {
              key: "_setReadableStream",
              value: function _setReadableStream(readableStream) {
                var _this = this;

                this._readableStream = readableStream;
                readableStream.on('readable', function () {
                  _this._readCapability.resolve();
                });
                readableStream.on('end', function () {
                  readableStream.destroy();
                  _this._done = true;

                  _this._readCapability.resolve();
                });
                readableStream.on('error', function (reason) {
                  _this._error(reason);
                });

                if (!this._isStreamingSupported && this._isRangeSupported) {
                  this._error(new _util.AbortException('streaming is disabled'));
                }

                if (this._storedError) {
                  this._readableStream.destroy(this._storedError);
                }
              }
            }, {
              key: "headersReady",
              get: function get() {
                return this._headersCapability.promise;
              }
            }, {
              key: "filename",
              get: function get() {
                return this._filename;
              }
            }, {
              key: "contentLength",
              get: function get() {
                return this._contentLength;
              }
            }, {
              key: "isRangeSupported",
              get: function get() {
                return this._isRangeSupported;
              }
            }, {
              key: "isStreamingSupported",
              get: function get() {
                return this._isStreamingSupported;
              }
            }]);

            return BaseFullReader;
          }();

        var BaseRangeReader =
          /*#__PURE__*/
          function () {
            function BaseRangeReader(stream) {
              _classCallCheck(this, BaseRangeReader);

              this._url = stream.url;
              this._done = false;
              this._storedError = null;
              this.onProgress = null;
              this._loaded = 0;
              this._readableStream = null;
              this._readCapability = (0, _util.createPromiseCapability)();
              var source = stream.source;
              this._isStreamingSupported = !source.disableStream;
            }

            _createClass(BaseRangeReader, [{
              key: "read",
              value: function () {
                var _read2 = _asyncToGenerator(
                  /*#__PURE__*/
                  _regenerator.default.mark(function _callee2() {
                    var chunk, buffer;
                    return _regenerator.default.wrap(function _callee2$(_context2) {
                      while (1) {
                        switch (_context2.prev = _context2.next) {
                          case 0:
                            _context2.next = 2;
                            return this._readCapability.promise;

                          case 2:
                            if (!this._done) {
                              _context2.next = 4;
                              break;
                            }

                            return _context2.abrupt("return", {
                              value: undefined,
                              done: true
                            });

                          case 4:
                            if (!this._storedError) {
                              _context2.next = 6;
                              break;
                            }

                            throw this._storedError;

                          case 6:
                            chunk = this._readableStream.read();

                            if (!(chunk === null)) {
                              _context2.next = 10;
                              break;
                            }

                            this._readCapability = (0, _util.createPromiseCapability)();
                            return _context2.abrupt("return", this.read());

                          case 10:
                            this._loaded += chunk.length;

                            if (this.onProgress) {
                              this.onProgress({
                                loaded: this._loaded
                              });
                            }

                            buffer = new Uint8Array(chunk).buffer;
                            return _context2.abrupt("return", {
                              value: buffer,
                              done: false
                            });

                          case 14:
                          case "end":
                            return _context2.stop();
                        }
                      }
                    }, _callee2, this);
                  }));

                function read() {
                  return _read2.apply(this, arguments);
                }

                return read;
              }()
            }, {
              key: "cancel",
              value: function cancel(reason) {
                if (!this._readableStream) {
                  this._error(reason);

                  return;
                }

                this._readableStream.destroy(reason);
              }
            }, {
              key: "_error",
              value: function _error(reason) {
                this._storedError = reason;

                this._readCapability.resolve();
              }
            }, {
              key: "_setReadableStream",
              value: function _setReadableStream(readableStream) {
                var _this2 = this;

                this._readableStream = readableStream;
                readableStream.on('readable', function () {
                  _this2._readCapability.resolve();
                });
                readableStream.on('end', function () {
                  readableStream.destroy();
                  _this2._done = true;

                  _this2._readCapability.resolve();
                });
                readableStream.on('error', function (reason) {
                  _this2._error(reason);
                });

                if (this._storedError) {
                  this._readableStream.destroy(this._storedError);
                }
              }
            }, {
              key: "isStreamingSupported",
              get: function get() {
                return this._isStreamingSupported;
              }
            }]);

            return BaseRangeReader;
          }();

        function createRequestOptions(url, headers) {
          return {
            protocol: url.protocol,
            auth: url.auth,
            host: url.hostname,
            port: url.port,
            path: url.path,
            method: 'GET',
            headers: headers
          };
        }

        var PDFNodeStreamFullReader =
          /*#__PURE__*/
          function (_BaseFullReader) {
            _inherits(PDFNodeStreamFullReader, _BaseFullReader);

            function PDFNodeStreamFullReader(stream) {
              var _this3;

              _classCallCheck(this, PDFNodeStreamFullReader);

              _this3 = _possibleConstructorReturn(this, _getPrototypeOf(PDFNodeStreamFullReader).call(this, stream));

              var handleResponse = function handleResponse(response) {
                if (response.statusCode === 404) {
                  var error = new _util.MissingPDFException("Missing PDF \"".concat(_this3._url, "\"."));
                  _this3._storedError = error;

                  _this3._headersCapability.reject(error);

                  return;
                }

                _this3._headersCapability.resolve();

                _this3._setReadableStream(response);

                var getResponseHeader = function getResponseHeader(name) {
                  return _this3._readableStream.headers[name.toLowerCase()];
                };

                var _validateRangeRequest = (0, _network_utils.validateRangeRequestCapabilities)({
                    getResponseHeader: getResponseHeader,
                    isHttp: stream.isHttp,
                    rangeChunkSize: _this3._rangeChunkSize,
                    disableRange: _this3._disableRange
                  }),
                  allowRangeRequests = _validateRangeRequest.allowRangeRequests,
                  suggestedLength = _validateRangeRequest.suggestedLength;

                _this3._isRangeSupported = allowRangeRequests;
                _this3._contentLength = suggestedLength || _this3._contentLength;
                _this3._filename = (0, _network_utils.extractFilenameFromHeader)(getResponseHeader);
              };

              _this3._request = null;

              if (_this3._url.protocol === 'http:') {
                _this3._request = http.request(createRequestOptions(_this3._url, stream.httpHeaders), handleResponse);
              } else {
                _this3._request = https.request(createRequestOptions(_this3._url, stream.httpHeaders), handleResponse);
              }

              _this3._request.on('error', function (reason) {
                _this3._storedError = reason;

                _this3._headersCapability.reject(reason);
              });

              _this3._request.end();

              return _this3;
            }

            return PDFNodeStreamFullReader;
          }(BaseFullReader);

        var PDFNodeStreamRangeReader =
          /*#__PURE__*/
          function (_BaseRangeReader) {
            _inherits(PDFNodeStreamRangeReader, _BaseRangeReader);

            function PDFNodeStreamRangeReader(stream, start, end) {
              var _this4;

              _classCallCheck(this, PDFNodeStreamRangeReader);

              _this4 = _possibleConstructorReturn(this, _getPrototypeOf(PDFNodeStreamRangeReader).call(this, stream));
              _this4._httpHeaders = {};

              for (var property in stream.httpHeaders) {
                var value = stream.httpHeaders[property];

                if (typeof value === 'undefined') {
                  continue;
                }

                _this4._httpHeaders[property] = value;
              }

              _this4._httpHeaders['Range'] = "bytes=".concat(start, "-").concat(end - 1);

              var handleResponse = function handleResponse(response) {
                if (response.statusCode === 404) {
                  var error = new _util.MissingPDFException("Missing PDF \"".concat(_this4._url, "\"."));
                  _this4._storedError = error;
                  return;
                }

                _this4._setReadableStream(response);
              };

              _this4._request = null;

              if (_this4._url.protocol === 'http:') {
                _this4._request = http.request(createRequestOptions(_this4._url, _this4._httpHeaders), handleResponse);
              } else {
                _this4._request = https.request(createRequestOptions(_this4._url, _this4._httpHeaders), handleResponse);
              }

              _this4._request.on('error', function (reason) {
                _this4._storedError = reason;
              });

              _this4._request.end();

              return _this4;
            }

            return PDFNodeStreamRangeReader;
          }(BaseRangeReader);

        var PDFNodeStreamFsFullReader =
          /*#__PURE__*/
          function (_BaseFullReader2) {
            _inherits(PDFNodeStreamFsFullReader, _BaseFullReader2);

            function PDFNodeStreamFsFullReader(stream) {
              var _this5;

              _classCallCheck(this, PDFNodeStreamFsFullReader);

              _this5 = _possibleConstructorReturn(this, _getPrototypeOf(PDFNodeStreamFsFullReader).call(this, stream));
              var path = decodeURIComponent(_this5._url.path);

              if (fileUriRegex.test(_this5._url.href)) {
                path = path.replace(/^\//, '');
              }

              fs.lstat(path, function (error, stat) {
                if (error) {
                  if (error.code === 'ENOENT') {
                    error = new _util.MissingPDFException("Missing PDF \"".concat(path, "\"."));
                  }

                  _this5._storedError = error;

                  _this5._headersCapability.reject(error);

                  return;
                }

                _this5._contentLength = stat.size;

                _this5._setReadableStream(fs.createReadStream(path));

                _this5._headersCapability.resolve();
              });
              return _this5;
            }

            return PDFNodeStreamFsFullReader;
          }(BaseFullReader);

        var PDFNodeStreamFsRangeReader =
          /*#__PURE__*/
          function (_BaseRangeReader2) {
            _inherits(PDFNodeStreamFsRangeReader, _BaseRangeReader2);

            function PDFNodeStreamFsRangeReader(stream, start, end) {
              var _this6;

              _classCallCheck(this, PDFNodeStreamFsRangeReader);

              _this6 = _possibleConstructorReturn(this, _getPrototypeOf(PDFNodeStreamFsRangeReader).call(this, stream));
              var path = decodeURIComponent(_this6._url.path);

              if (fileUriRegex.test(_this6._url.href)) {
                path = path.replace(/^\//, '');
              }

              _this6._setReadableStream(fs.createReadStream(path, {
                start: start,
                end: end - 1
              }));

              return _this6;
            }

            return PDFNodeStreamFsRangeReader;
          }(BaseRangeReader);

        /***/
      }),
      /* 166 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.createResponseStatusError = createResponseStatusError;
        exports.extractFilenameFromHeader = extractFilenameFromHeader;
        exports.validateRangeRequestCapabilities = validateRangeRequestCapabilities;
        exports.validateResponseStatus = validateResponseStatus;

        var _util = __w_pdfjs_require__(1);

        var _content_disposition = __w_pdfjs_require__(167);

        function validateRangeRequestCapabilities(_ref) {
          var getResponseHeader = _ref.getResponseHeader,
            isHttp = _ref.isHttp,
            rangeChunkSize = _ref.rangeChunkSize,
            disableRange = _ref.disableRange;
          (0, _util.assert)(rangeChunkSize > 0, 'Range chunk size must be larger than zero');
          var returnValues = {
            allowRangeRequests: false,
            suggestedLength: undefined
          };
          var length = parseInt(getResponseHeader('Content-Length'), 10);

          if (!Number.isInteger(length)) {
            return returnValues;
          }

          returnValues.suggestedLength = length;

          if (length <= 2 * rangeChunkSize) {
            return returnValues;
          }

          if (disableRange || !isHttp) {
            return returnValues;
          }

          if (getResponseHeader('Accept-Ranges') !== 'bytes') {
            return returnValues;
          }

          var contentEncoding = getResponseHeader('Content-Encoding') || 'identity';

          if (contentEncoding !== 'identity') {
            return returnValues;
          }

          returnValues.allowRangeRequests = true;
          return returnValues;
        }

        function extractFilenameFromHeader(getResponseHeader) {
          var contentDisposition = getResponseHeader('Content-Disposition');

          if (contentDisposition) {
            var filename = (0, _content_disposition.getFilenameFromContentDispositionHeader)(contentDisposition);

            if (/\.pdf$/i.test(filename)) {
              return filename;
            }
          }

          return null;
        }

        function createResponseStatusError(status, url) {
          if (status === 404 || status === 0 && /^file:/.test(url)) {
            return new _util.MissingPDFException('Missing PDF "' + url + '".');
          }

          return new _util.UnexpectedResponseException('Unexpected server response (' + status + ') while retrieving PDF "' + url + '".', status);
        }

        function validateResponseStatus(status) {
          return status === 200 || status === 206;
        }

        /***/
      }),
      /* 167 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.getFilenameFromContentDispositionHeader = getFilenameFromContentDispositionHeader;

        function _slicedToArray(arr, i) {
          return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest();
        }

        function _nonIterableRest() {
          throw new TypeError("Invalid attempt to destructure non-iterable instance");
        }

        function _iterableToArrayLimit(arr, i) {
          var _arr = [];
          var _n = true;
          var _d = false;
          var _e = undefined;
          try {
            for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
              _arr.push(_s.value);
              if (i && _arr.length === i) break;
            }
          } catch (err) {
            _d = true;
            _e = err;
          } finally {
            try {
              if (!_n && _i["return"] != null) _i["return"]();
            } finally {
              if (_d) throw _e;
            }
          }
          return _arr;
        }

        function _arrayWithHoles(arr) {
          if (Array.isArray(arr)) return arr;
        }

        function getFilenameFromContentDispositionHeader(contentDisposition) {
          var needsEncodingFixup = true;
          var tmp = toParamRegExp('filename\\*', 'i').exec(contentDisposition);

          if (tmp) {
            tmp = tmp[1];
            var filename = rfc2616unquote(tmp);
            filename = unescape(filename);
            filename = rfc5987decode(filename);
            filename = rfc2047decode(filename);
            return fixupEncoding(filename);
          }

          tmp = rfc2231getparam(contentDisposition);

          if (tmp) {
            var _filename = rfc2047decode(tmp);

            return fixupEncoding(_filename);
          }

          tmp = toParamRegExp('filename', 'i').exec(contentDisposition);

          if (tmp) {
            tmp = tmp[1];

            var _filename2 = rfc2616unquote(tmp);

            _filename2 = rfc2047decode(_filename2);
            return fixupEncoding(_filename2);
          }

          function toParamRegExp(attributePattern, flags) {
            return new RegExp('(?:^|;)\\s*' + attributePattern + '\\s*=\\s*' + '(' + '[^";\\s][^;\\s]*' + '|' + '"(?:[^"\\\\]|\\\\"?)+"?' + ')', flags);
          }

          function textdecode(encoding, value) {
            if (encoding) {
              if (!/^[\x00-\xFF]+$/.test(value)) {
                return value;
              }

              try {
                var decoder = new TextDecoder(encoding, {
                  fatal: true
                });
                var bytes = Array.from(value, function (ch) {
                  return ch.charCodeAt(0) & 0xFF;
                });
                value = decoder.decode(new Uint8Array(bytes));
                needsEncodingFixup = false;
              } catch (e) {
                if (/^utf-?8$/i.test(encoding)) {
                  try {
                    value = decodeURIComponent(escape(value));
                    needsEncodingFixup = false;
                  } catch (err) {
                  }
                }
              }
            }

            return value;
          }

          function fixupEncoding(value) {
            if (needsEncodingFixup && /[\x80-\xff]/.test(value)) {
              value = textdecode('utf-8', value);

              if (needsEncodingFixup) {
                value = textdecode('iso-8859-1', value);
              }
            }

            return value;
          }

          function rfc2231getparam(contentDisposition) {
            var matches = [],
              match;
            var iter = toParamRegExp('filename\\*((?!0\\d)\\d+)(\\*?)', 'ig');

            while ((match = iter.exec(contentDisposition)) !== null) {
              var _match = match,
                _match2 = _slicedToArray(_match, 4),
                n = _match2[1],
                quot = _match2[2],
                part = _match2[3];

              n = parseInt(n, 10);

              if (n in matches) {
                if (n === 0) {
                  break;
                }

                continue;
              }

              matches[n] = [quot, part];
            }

            var parts = [];

            for (var n = 0; n < matches.length; ++n) {
              if (!(n in matches)) {
                break;
              }

              var _matches$n = _slicedToArray(matches[n], 2),
                quot = _matches$n[0],
                part = _matches$n[1];

              part = rfc2616unquote(part);

              if (quot) {
                part = unescape(part);

                if (n === 0) {
                  part = rfc5987decode(part);
                }
              }

              parts.push(part);
            }

            return parts.join('');
          }

          function rfc2616unquote(value) {
            if (value.startsWith('"')) {
              var parts = value.slice(1).split('\\"');

              for (var i = 0; i < parts.length; ++i) {
                var quotindex = parts[i].indexOf('"');

                if (quotindex !== -1) {
                  parts[i] = parts[i].slice(0, quotindex);
                  parts.length = i + 1;
                }

                parts[i] = parts[i].replace(/\\(.)/g, '$1');
              }

              value = parts.join('"');
            }

            return value;
          }

          function rfc5987decode(extvalue) {
            var encodingend = extvalue.indexOf('\'');

            if (encodingend === -1) {
              return extvalue;
            }

            var encoding = extvalue.slice(0, encodingend);
            var langvalue = extvalue.slice(encodingend + 1);
            var value = langvalue.replace(/^[^']*'/, '');
            return textdecode(encoding, value);
          }

          function rfc2047decode(value) {
            if (!value.startsWith('=?') || /[\x00-\x19\x80-\xff]/.test(value)) {
              return value;
            }

            return value.replace(/=\?([\w-]*)\?([QqBb])\?((?:[^?]|\?(?!=))*)\?=/g, function (_, charset, encoding, text) {
              if (encoding === 'q' || encoding === 'Q') {
                text = text.replace(/_/g, ' ');
                text = text.replace(/=([0-9a-fA-F]{2})/g, function (_, hex) {
                  return String.fromCharCode(parseInt(hex, 16));
                });
                return textdecode(charset, text);
              }

              try {
                text = atob(text);
              } catch (e) {
              }

              return textdecode(charset, text);
            });
          }

          return '';
        }

        /***/
      }),
      /* 168 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.PDFFetchStream = void 0;

        var _regenerator = _interopRequireDefault(__w_pdfjs_require__(147));

        var _util = __w_pdfjs_require__(1);

        var _network_utils = __w_pdfjs_require__(166);

        function _interopRequireDefault(obj) {
          return obj && obj.__esModule ? obj : {default: obj};
        }

        function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
          try {
            var info = gen[key](arg);
            var value = info.value;
          } catch (error) {
            reject(error);
            return;
          }
          if (info.done) {
            resolve(value);
          } else {
            Promise.resolve(value).then(_next, _throw);
          }
        }

        function _asyncToGenerator(fn) {
          return function () {
            var self = this, args = arguments;
            return new Promise(function (resolve, reject) {
              var gen = fn.apply(self, args);

              function _next(value) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
              }

              function _throw(err) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
              }

              _next(undefined);
            });
          };
        }

        function _classCallCheck(instance, Constructor) {
          if (!(instance instanceof Constructor)) {
            throw new TypeError("Cannot call a class as a function");
          }
        }

        function _defineProperties(target, props) {
          for (var i = 0; i < props.length; i++) {
            var descriptor = props[i];
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ("value" in descriptor) descriptor.writable = true;
            Object.defineProperty(target, descriptor.key, descriptor);
          }
        }

        function _createClass(Constructor, protoProps, staticProps) {
          if (protoProps) _defineProperties(Constructor.prototype, protoProps);
          if (staticProps) _defineProperties(Constructor, staticProps);
          return Constructor;
        }

        function createFetchOptions(headers, withCredentials, abortController) {
          return {
            method: 'GET',
            headers: headers,
            signal: abortController && abortController.signal,
            mode: 'cors',
            credentials: withCredentials ? 'include' : 'same-origin',
            redirect: 'follow'
          };
        }

        var PDFFetchStream =
          /*#__PURE__*/
          function () {
            function PDFFetchStream(source) {
              _classCallCheck(this, PDFFetchStream);

              this.source = source;
              this.isHttp = /^https?:/i.test(source.url);
              this.httpHeaders = this.isHttp && source.httpHeaders || {};
              this._fullRequestReader = null;
              this._rangeRequestReaders = [];
            }

            _createClass(PDFFetchStream, [{
              key: "getFullReader",
              value: function getFullReader() {
                (0, _util.assert)(!this._fullRequestReader);
                this._fullRequestReader = new PDFFetchStreamReader(this);
                return this._fullRequestReader;
              }
            }, {
              key: "getRangeReader",
              value: function getRangeReader(begin, end) {
                var reader = new PDFFetchStreamRangeReader(this, begin, end);

                this._rangeRequestReaders.push(reader);

                return reader;
              }
            }, {
              key: "cancelAllRequests",
              value: function cancelAllRequests(reason) {
                if (this._fullRequestReader) {
                  this._fullRequestReader.cancel(reason);
                }

                var readers = this._rangeRequestReaders.slice(0);

                readers.forEach(function (reader) {
                  reader.cancel(reason);
                });
              }
            }]);

            return PDFFetchStream;
          }();

        exports.PDFFetchStream = PDFFetchStream;

        var PDFFetchStreamReader =
          /*#__PURE__*/
          function () {
            function PDFFetchStreamReader(stream) {
              var _this = this;

              _classCallCheck(this, PDFFetchStreamReader);

              this._stream = stream;
              this._reader = null;
              this._loaded = 0;
              this._filename = null;
              var source = stream.source;
              this._withCredentials = source.withCredentials;
              this._contentLength = source.length;
              this._headersCapability = (0, _util.createPromiseCapability)();
              this._disableRange = source.disableRange || false;
              this._rangeChunkSize = source.rangeChunkSize;

              if (!this._rangeChunkSize && !this._disableRange) {
                this._disableRange = true;
              }

              if (typeof AbortController !== 'undefined') {
                this._abortController = new AbortController();
              }

              this._isStreamingSupported = !source.disableStream;
              this._isRangeSupported = !source.disableRange;
              this._headers = new Headers();

              for (var property in this._stream.httpHeaders) {
                var value = this._stream.httpHeaders[property];

                if (typeof value === 'undefined') {
                  continue;
                }

                this._headers.append(property, value);
              }

              var url = source.url;
              fetch(url, createFetchOptions(this._headers, this._withCredentials, this._abortController)).then(function (response) {
                if (!(0, _network_utils.validateResponseStatus)(response.status)) {
                  throw (0, _network_utils.createResponseStatusError)(response.status, url);
                }

                _this._reader = response.body.getReader();

                _this._headersCapability.resolve();

                var getResponseHeader = function getResponseHeader(name) {
                  return response.headers.get(name);
                };

                var _validateRangeRequest = (0, _network_utils.validateRangeRequestCapabilities)({
                    getResponseHeader: getResponseHeader,
                    isHttp: _this._stream.isHttp,
                    rangeChunkSize: _this._rangeChunkSize,
                    disableRange: _this._disableRange
                  }),
                  allowRangeRequests = _validateRangeRequest.allowRangeRequests,
                  suggestedLength = _validateRangeRequest.suggestedLength;

                _this._isRangeSupported = allowRangeRequests;
                _this._contentLength = suggestedLength || _this._contentLength;
                _this._filename = (0, _network_utils.extractFilenameFromHeader)(getResponseHeader);

                if (!_this._isStreamingSupported && _this._isRangeSupported) {
                  _this.cancel(new _util.AbortException('streaming is disabled'));
                }
              }).catch(this._headersCapability.reject);
              this.onProgress = null;
            }

            _createClass(PDFFetchStreamReader, [{
              key: "read",
              value: function () {
                var _read = _asyncToGenerator(
                  /*#__PURE__*/
                  _regenerator.default.mark(function _callee() {
                    var _ref, value, done, buffer;

                    return _regenerator.default.wrap(function _callee$(_context) {
                      while (1) {
                        switch (_context.prev = _context.next) {
                          case 0:
                            _context.next = 2;
                            return this._headersCapability.promise;

                          case 2:
                            _context.next = 4;
                            return this._reader.read();

                          case 4:
                            _ref = _context.sent;
                            value = _ref.value;
                            done = _ref.done;

                            if (!done) {
                              _context.next = 9;
                              break;
                            }

                            return _context.abrupt("return", {
                              value: value,
                              done: done
                            });

                          case 9:
                            this._loaded += value.byteLength;

                            if (this.onProgress) {
                              this.onProgress({
                                loaded: this._loaded,
                                total: this._contentLength
                              });
                            }

                            buffer = new Uint8Array(value).buffer;
                            return _context.abrupt("return", {
                              value: buffer,
                              done: false
                            });

                          case 13:
                          case "end":
                            return _context.stop();
                        }
                      }
                    }, _callee, this);
                  }));

                function read() {
                  return _read.apply(this, arguments);
                }

                return read;
              }()
            }, {
              key: "cancel",
              value: function cancel(reason) {
                if (this._reader) {
                  this._reader.cancel(reason);
                }

                if (this._abortController) {
                  this._abortController.abort();
                }
              }
            }, {
              key: "headersReady",
              get: function get() {
                return this._headersCapability.promise;
              }
            }, {
              key: "filename",
              get: function get() {
                return this._filename;
              }
            }, {
              key: "contentLength",
              get: function get() {
                return this._contentLength;
              }
            }, {
              key: "isRangeSupported",
              get: function get() {
                return this._isRangeSupported;
              }
            }, {
              key: "isStreamingSupported",
              get: function get() {
                return this._isStreamingSupported;
              }
            }]);

            return PDFFetchStreamReader;
          }();

        var PDFFetchStreamRangeReader =
          /*#__PURE__*/
          function () {
            function PDFFetchStreamRangeReader(stream, begin, end) {
              var _this2 = this;

              _classCallCheck(this, PDFFetchStreamRangeReader);

              this._stream = stream;
              this._reader = null;
              this._loaded = 0;
              var source = stream.source;
              this._withCredentials = source.withCredentials;
              this._readCapability = (0, _util.createPromiseCapability)();
              this._isStreamingSupported = !source.disableStream;

              if (typeof AbortController !== 'undefined') {
                this._abortController = new AbortController();
              }

              this._headers = new Headers();

              for (var property in this._stream.httpHeaders) {
                var value = this._stream.httpHeaders[property];

                if (typeof value === 'undefined') {
                  continue;
                }

                this._headers.append(property, value);
              }

              var rangeStr = begin + '-' + (end - 1);

              this._headers.append('Range', 'bytes=' + rangeStr);

              var url = source.url;
              fetch(url, createFetchOptions(this._headers, this._withCredentials, this._abortController)).then(function (response) {
                if (!(0, _network_utils.validateResponseStatus)(response.status)) {
                  throw (0, _network_utils.createResponseStatusError)(response.status, url);
                }

                _this2._readCapability.resolve();

                _this2._reader = response.body.getReader();
              });
              this.onProgress = null;
            }

            _createClass(PDFFetchStreamRangeReader, [{
              key: "read",
              value: function () {
                var _read2 = _asyncToGenerator(
                  /*#__PURE__*/
                  _regenerator.default.mark(function _callee2() {
                    var _ref2, value, done, buffer;

                    return _regenerator.default.wrap(function _callee2$(_context2) {
                      while (1) {
                        switch (_context2.prev = _context2.next) {
                          case 0:
                            _context2.next = 2;
                            return this._readCapability.promise;

                          case 2:
                            _context2.next = 4;
                            return this._reader.read();

                          case 4:
                            _ref2 = _context2.sent;
                            value = _ref2.value;
                            done = _ref2.done;

                            if (!done) {
                              _context2.next = 9;
                              break;
                            }

                            return _context2.abrupt("return", {
                              value: value,
                              done: done
                            });

                          case 9:
                            this._loaded += value.byteLength;

                            if (this.onProgress) {
                              this.onProgress({
                                loaded: this._loaded
                              });
                            }

                            buffer = new Uint8Array(value).buffer;
                            return _context2.abrupt("return", {
                              value: buffer,
                              done: false
                            });

                          case 13:
                          case "end":
                            return _context2.stop();
                        }
                      }
                    }, _callee2, this);
                  }));

                function read() {
                  return _read2.apply(this, arguments);
                }

                return read;
              }()
            }, {
              key: "cancel",
              value: function cancel(reason) {
                if (this._reader) {
                  this._reader.cancel(reason);
                }

                if (this._abortController) {
                  this._abortController.abort();
                }
              }
            }, {
              key: "isStreamingSupported",
              get: function get() {
                return this._isStreamingSupported;
              }
            }]);

            return PDFFetchStreamRangeReader;
          }();

        /***/
      }),
      /* 169 */
      /***/ (function (module, exports, __w_pdfjs_require__) {

        "use strict";


        Object.defineProperty(exports, "__esModule", {
          value: true
        });
        exports.PDFNetworkStream = PDFNetworkStream;
        exports.NetworkManager = NetworkManager;

        var _regenerator = _interopRequireDefault(__w_pdfjs_require__(147));

        var _util = __w_pdfjs_require__(1);

        var _network_utils = __w_pdfjs_require__(166);

        var _global_scope = _interopRequireDefault(__w_pdfjs_require__(3));

        function _interopRequireDefault(obj) {
          return obj && obj.__esModule ? obj : {default: obj};
        }

        function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
          try {
            var info = gen[key](arg);
            var value = info.value;
          } catch (error) {
            reject(error);
            return;
          }
          if (info.done) {
            resolve(value);
          } else {
            Promise.resolve(value).then(_next, _throw);
          }
        }

        function _asyncToGenerator(fn) {
          return function () {
            var self = this, args = arguments;
            return new Promise(function (resolve, reject) {
              var gen = fn.apply(self, args);

              function _next(value) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
              }

              function _throw(err) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
              }

              _next(undefined);
            });
          };
        }

        ;
        var OK_RESPONSE = 200;
        var PARTIAL_CONTENT_RESPONSE = 206;

        function NetworkManager(url, args) {
          this.url = url;
          args = args || {};
          this.isHttp = /^https?:/i.test(url);
          this.httpHeaders = this.isHttp && args.httpHeaders || {};
          this.withCredentials = args.withCredentials || false;

          this.getXhr = args.getXhr || function NetworkManager_getXhr() {
            return new XMLHttpRequest();
          };

          this.currXhrId = 0;
          this.pendingRequests = Object.create(null);
          this.loadedRequests = Object.create(null);
        }

        function getArrayBuffer(xhr) {
          var data = xhr.response;

          if (typeof data !== 'string') {
            return data;
          }

          var array = (0, _util.stringToBytes)(data);
          return array.buffer;
        }

        var supportsMozChunked = function supportsMozChunkedClosure() {
          try {
            var x = new XMLHttpRequest();
            x.open('GET', _global_scope.default.location.href);
            x.responseType = 'moz-chunked-arraybuffer';
            return x.responseType === 'moz-chunked-arraybuffer';
          } catch (e) {
            return false;
          }
        }();

        NetworkManager.prototype = {
          requestRange: function NetworkManager_requestRange(begin, end, listeners) {
            var args = {
              begin: begin,
              end: end
            };

            for (var prop in listeners) {
              args[prop] = listeners[prop];
            }

            return this.request(args);
          },
          requestFull: function NetworkManager_requestFull(listeners) {
            return this.request(listeners);
          },
          request: function NetworkManager_request(args) {
            var xhr = this.getXhr();
            var xhrId = this.currXhrId++;
            var pendingRequest = this.pendingRequests[xhrId] = {
              xhr: xhr
            };
            xhr.open('GET', this.url);
            xhr.withCredentials = this.withCredentials;

            for (var property in this.httpHeaders) {
              var value = this.httpHeaders[property];

              if (typeof value === 'undefined') {
                continue;
              }

              xhr.setRequestHeader(property, value);
            }

            if (this.isHttp && 'begin' in args && 'end' in args) {
              var rangeStr = args.begin + '-' + (args.end - 1);
              xhr.setRequestHeader('Range', 'bytes=' + rangeStr);
              pendingRequest.expectedStatus = 206;
            } else {
              pendingRequest.expectedStatus = 200;
            }

            var useMozChunkedLoading = supportsMozChunked && !!args.onProgressiveData;

            if (useMozChunkedLoading) {
              xhr.responseType = 'moz-chunked-arraybuffer';
              pendingRequest.onProgressiveData = args.onProgressiveData;
              pendingRequest.mozChunked = true;
            } else {
              xhr.responseType = 'arraybuffer';
            }

            if (args.onError) {
              xhr.onerror = function (evt) {
                args.onError(xhr.status);
              };
            }

            xhr.onreadystatechange = this.onStateChange.bind(this, xhrId);
            xhr.onprogress = this.onProgress.bind(this, xhrId);
            pendingRequest.onHeadersReceived = args.onHeadersReceived;
            pendingRequest.onDone = args.onDone;
            pendingRequest.onError = args.onError;
            pendingRequest.onProgress = args.onProgress;
            xhr.send(null);
            return xhrId;
          },
          onProgress: function NetworkManager_onProgress(xhrId, evt) {
            var pendingRequest = this.pendingRequests[xhrId];

            if (!pendingRequest) {
              return;
            }

            if (pendingRequest.mozChunked) {
              var chunk = getArrayBuffer(pendingRequest.xhr);
              pendingRequest.onProgressiveData(chunk);
            }

            var onProgress = pendingRequest.onProgress;

            if (onProgress) {
              onProgress(evt);
            }
          },
          onStateChange: function NetworkManager_onStateChange(xhrId, evt) {
            var pendingRequest = this.pendingRequests[xhrId];

            if (!pendingRequest) {
              return;
            }

            var xhr = pendingRequest.xhr;

            if (xhr.readyState >= 2 && pendingRequest.onHeadersReceived) {
              pendingRequest.onHeadersReceived();
              delete pendingRequest.onHeadersReceived;
            }

            if (xhr.readyState !== 4) {
              return;
            }

            if (!(xhrId in this.pendingRequests)) {
              return;
            }

            delete this.pendingRequests[xhrId];

            if (xhr.status === 0 && this.isHttp) {
              if (pendingRequest.onError) {
                pendingRequest.onError(xhr.status);
              }

              return;
            }

            var xhrStatus = xhr.status || OK_RESPONSE;
            var ok_response_on_range_request = xhrStatus === OK_RESPONSE && pendingRequest.expectedStatus === PARTIAL_CONTENT_RESPONSE;

            if (!ok_response_on_range_request && xhrStatus !== pendingRequest.expectedStatus) {
              if (pendingRequest.onError) {
                pendingRequest.onError(xhr.status);
              }

              return;
            }

            this.loadedRequests[xhrId] = true;
            var chunk = getArrayBuffer(xhr);

            if (xhrStatus === PARTIAL_CONTENT_RESPONSE) {
              var rangeHeader = xhr.getResponseHeader('Content-Range');
              var matches = /bytes (\d+)-(\d+)\/(\d+)/.exec(rangeHeader);
              var begin = parseInt(matches[1], 10);
              pendingRequest.onDone({
                begin: begin,
                chunk: chunk
              });
            } else if (pendingRequest.onProgressiveData) {
              pendingRequest.onDone(null);
            } else if (chunk) {
              pendingRequest.onDone({
                begin: 0,
                chunk: chunk
              });
            } else if (pendingRequest.onError) {
              pendingRequest.onError(xhr.status);
            }
          },
          hasPendingRequests: function NetworkManager_hasPendingRequests() {
            for (var xhrId in this.pendingRequests) {
              return true;
            }

            return false;
          },
          getRequestXhr: function NetworkManager_getXhr(xhrId) {
            return this.pendingRequests[xhrId].xhr;
          },
          isStreamingRequest: function NetworkManager_isStreamingRequest(xhrId) {
            return !!this.pendingRequests[xhrId].onProgressiveData;
          },
          isPendingRequest: function NetworkManager_isPendingRequest(xhrId) {
            return xhrId in this.pendingRequests;
          },
          isLoadedRequest: function NetworkManager_isLoadedRequest(xhrId) {
            return xhrId in this.loadedRequests;
          },
          abortAllRequests: function NetworkManager_abortAllRequests() {
            for (var xhrId in this.pendingRequests) {
              this.abortRequest(xhrId | 0);
            }
          },
          abortRequest: function NetworkManager_abortRequest(xhrId) {
            var xhr = this.pendingRequests[xhrId].xhr;
            delete this.pendingRequests[xhrId];
            xhr.abort();
          }
        };

        function PDFNetworkStream(source) {
          this._source = source;
          this._manager = new NetworkManager(source.url, {
            httpHeaders: source.httpHeaders,
            withCredentials: source.withCredentials
          });
          this._rangeChunkSize = source.rangeChunkSize;
          this._fullRequestReader = null;
          this._rangeRequestReaders = [];
        }

        PDFNetworkStream.prototype = {
          _onRangeRequestReaderClosed: function PDFNetworkStream_onRangeRequestReaderClosed(reader) {
            var i = this._rangeRequestReaders.indexOf(reader);

            if (i >= 0) {
              this._rangeRequestReaders.splice(i, 1);
            }
          },
          getFullReader: function PDFNetworkStream_getFullReader() {
            (0, _util.assert)(!this._fullRequestReader);
            this._fullRequestReader = new PDFNetworkStreamFullRequestReader(this._manager, this._source);
            return this._fullRequestReader;
          },
          getRangeReader: function PDFNetworkStream_getRangeReader(begin, end) {
            var reader = new PDFNetworkStreamRangeRequestReader(this._manager, begin, end);
            reader.onClosed = this._onRangeRequestReaderClosed.bind(this);

            this._rangeRequestReaders.push(reader);

            return reader;
          },
          cancelAllRequests: function PDFNetworkStream_cancelAllRequests(reason) {
            if (this._fullRequestReader) {
              this._fullRequestReader.cancel(reason);
            }

            var readers = this._rangeRequestReaders.slice(0);

            readers.forEach(function (reader) {
              reader.cancel(reason);
            });
          }
        };

        function PDFNetworkStreamFullRequestReader(manager, source) {
          this._manager = manager;
          var args = {
            onHeadersReceived: this._onHeadersReceived.bind(this),
            onProgressiveData: source.disableStream ? null : this._onProgressiveData.bind(this),
            onDone: this._onDone.bind(this),
            onError: this._onError.bind(this),
            onProgress: this._onProgress.bind(this)
          };
          this._url = source.url;
          this._fullRequestId = manager.requestFull(args);
          this._headersReceivedCapability = (0, _util.createPromiseCapability)();
          this._disableRange = source.disableRange || false;
          this._contentLength = source.length;
          this._rangeChunkSize = source.rangeChunkSize;

          if (!this._rangeChunkSize && !this._disableRange) {
            this._disableRange = true;
          }

          this._isStreamingSupported = false;
          this._isRangeSupported = false;
          this._cachedChunks = [];
          this._requests = [];
          this._done = false;
          this._storedError = undefined;
          this._filename = null;
          this.onProgress = null;
        }

        PDFNetworkStreamFullRequestReader.prototype = {
          _onHeadersReceived: function PDFNetworkStreamFullRequestReader_onHeadersReceived() {
            var fullRequestXhrId = this._fullRequestId;

            var fullRequestXhr = this._manager.getRequestXhr(fullRequestXhrId);

            var getResponseHeader = function getResponseHeader(name) {
              return fullRequestXhr.getResponseHeader(name);
            };

            var _validateRangeRequest = (0, _network_utils.validateRangeRequestCapabilities)({
                getResponseHeader: getResponseHeader,
                isHttp: this._manager.isHttp,
                rangeChunkSize: this._rangeChunkSize,
                disableRange: this._disableRange
              }),
              allowRangeRequests = _validateRangeRequest.allowRangeRequests,
              suggestedLength = _validateRangeRequest.suggestedLength;

            if (allowRangeRequests) {
              this._isRangeSupported = true;
            }

            this._contentLength = suggestedLength || this._contentLength;
            this._filename = (0, _network_utils.extractFilenameFromHeader)(getResponseHeader);
            var networkManager = this._manager;

            if (networkManager.isStreamingRequest(fullRequestXhrId)) {
              this._isStreamingSupported = true;
            } else if (this._isRangeSupported) {
              networkManager.abortRequest(fullRequestXhrId);
            }

            this._headersReceivedCapability.resolve();
          },
          _onProgressiveData: function PDFNetworkStreamFullRequestReader_onProgressiveData(chunk) {
            if (this._requests.length > 0) {
              var requestCapability = this._requests.shift();

              requestCapability.resolve({
                value: chunk,
                done: false
              });
            } else {
              this._cachedChunks.push(chunk);
            }
          },
          _onDone: function PDFNetworkStreamFullRequestReader_onDone(args) {
            if (args) {
              this._onProgressiveData(args.chunk);
            }

            this._done = true;

            if (this._cachedChunks.length > 0) {
              return;
            }

            this._requests.forEach(function (requestCapability) {
              requestCapability.resolve({
                value: undefined,
                done: true
              });
            });

            this._requests = [];
          },
          _onError: function PDFNetworkStreamFullRequestReader_onError(status) {
            var url = this._url;
            var exception = (0, _network_utils.createResponseStatusError)(status, url);
            this._storedError = exception;

            this._headersReceivedCapability.reject(exception);

            this._requests.forEach(function (requestCapability) {
              requestCapability.reject(exception);
            });

            this._requests = [];
            this._cachedChunks = [];
          },
          _onProgress: function PDFNetworkStreamFullRequestReader_onProgress(data) {
            if (this.onProgress) {
              this.onProgress({
                loaded: data.loaded,
                total: data.lengthComputable ? data.total : this._contentLength
              });
            }
          },

          get filename() {
            return this._filename;
          },

          get isRangeSupported() {
            return this._isRangeSupported;
          },

          get isStreamingSupported() {
            return this._isStreamingSupported;
          },

          get contentLength() {
            return this._contentLength;
          },

          get headersReady() {
            return this._headersReceivedCapability.promise;
          },

          read: function () {
            var _read = _asyncToGenerator(
              /*#__PURE__*/
              _regenerator.default.mark(function _callee() {
                var chunk, requestCapability;
                return _regenerator.default.wrap(function _callee$(_context) {
                  while (1) {
                    switch (_context.prev = _context.next) {
                      case 0:
                        if (!this._storedError) {
                          _context.next = 2;
                          break;
                        }

                        throw this._storedError;

                      case 2:
                        if (!(this._cachedChunks.length > 0)) {
                          _context.next = 5;
                          break;
                        }

                        chunk = this._cachedChunks.shift();
                        return _context.abrupt("return", {
                          value: chunk,
                          done: false
                        });

                      case 5:
                        if (!this._done) {
                          _context.next = 7;
                          break;
                        }

                        return _context.abrupt("return", {
                          value: undefined,
                          done: true
                        });

                      case 7:
                        requestCapability = (0, _util.createPromiseCapability)();

                        this._requests.push(requestCapability);

                        return _context.abrupt("return", requestCapability.promise);

                      case 10:
                      case "end":
                        return _context.stop();
                    }
                  }
                }, _callee, this);
              }));

            function read() {
              return _read.apply(this, arguments);
            }

            return read;
          }(),
          cancel: function PDFNetworkStreamFullRequestReader_cancel(reason) {
            this._done = true;

            this._headersReceivedCapability.reject(reason);

            this._requests.forEach(function (requestCapability) {
              requestCapability.resolve({
                value: undefined,
                done: true
              });
            });

            this._requests = [];

            if (this._manager.isPendingRequest(this._fullRequestId)) {
              this._manager.abortRequest(this._fullRequestId);
            }

            this._fullRequestReader = null;
          }
        };

        function PDFNetworkStreamRangeRequestReader(manager, begin, end) {
          this._manager = manager;
          var args = {
            onDone: this._onDone.bind(this),
            onProgress: this._onProgress.bind(this)
          };
          this._requestId = manager.requestRange(begin, end, args);
          this._requests = [];
          this._queuedChunk = null;
          this._done = false;
          this.onProgress = null;
          this.onClosed = null;
        }

        PDFNetworkStreamRangeRequestReader.prototype = {
          _close: function PDFNetworkStreamRangeRequestReader_close() {
            if (this.onClosed) {
              this.onClosed(this);
            }
          },
          _onDone: function PDFNetworkStreamRangeRequestReader_onDone(data) {
            var chunk = data.chunk;

            if (this._requests.length > 0) {
              var requestCapability = this._requests.shift();

              requestCapability.resolve({
                value: chunk,
                done: false
              });
            } else {
              this._queuedChunk = chunk;
            }

            this._done = true;

            this._requests.forEach(function (requestCapability) {
              requestCapability.resolve({
                value: undefined,
                done: true
              });
            });

            this._requests = [];

            this._close();
          },
          _onProgress: function PDFNetworkStreamRangeRequestReader_onProgress(evt) {
            if (!this.isStreamingSupported && this.onProgress) {
              this.onProgress({
                loaded: evt.loaded
              });
            }
          },

          get isStreamingSupported() {
            return false;
          },

          read: function () {
            var _read2 = _asyncToGenerator(
              /*#__PURE__*/
              _regenerator.default.mark(function _callee2() {
                var chunk, requestCapability;
                return _regenerator.default.wrap(function _callee2$(_context2) {
                  while (1) {
                    switch (_context2.prev = _context2.next) {
                      case 0:
                        if (!(this._queuedChunk !== null)) {
                          _context2.next = 4;
                          break;
                        }

                        chunk = this._queuedChunk;
                        this._queuedChunk = null;
                        return _context2.abrupt("return", {
                          value: chunk,
                          done: false
                        });

                      case 4:
                        if (!this._done) {
                          _context2.next = 6;
                          break;
                        }

                        return _context2.abrupt("return", {
                          value: undefined,
                          done: true
                        });

                      case 6:
                        requestCapability = (0, _util.createPromiseCapability)();

                        this._requests.push(requestCapability);

                        return _context2.abrupt("return", requestCapability.promise);

                      case 9:
                      case "end":
                        return _context2.stop();
                    }
                  }
                }, _callee2, this);
              }));

            function read() {
              return _read2.apply(this, arguments);
            }

            return read;
          }(),
          cancel: function PDFNetworkStreamRangeRequestReader_cancel(reason) {
            this._done = true;

            this._requests.forEach(function (requestCapability) {
              requestCapability.resolve({
                value: undefined,
                done: true
              });
            });

            this._requests = [];

            if (this._manager.isPendingRequest(this._requestId)) {
              this._manager.abortRequest(this._requestId);
            }

            this._close();
          }
        };

        /***/
      })
      /******/]);
});
//# sourceMappingURL=pdf.js.map
