PDF-Previews in file-lists now working (#3000)

modules/base/tool.go

@@ -522,3 +522,11 @@ func IsImageFile(data []byte) (string, bool) {
 	}
 	return contentType, false
 }
+
+func IsPDFFile(data []byte) (string, bool) {
+	contentType := http.DetectContentType(data)
+	if strings.Index(contentType, "application/pdf") != -1 {
+		return contentType, true
+	}
+	return contentType, false
+}

public/plugins/pdfjs-1.4.20/LICENSE

@@ -0,0 +1,177 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS

public/plugins/pdfjs-1.4.20/web/compatibility.js

@@ -0,0 +1,593 @@
+/* Copyright 2012 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.
+ */
+/* globals VBArray, PDFJS */
+
+'use strict';
+
+// Initializing PDFJS global object here, it case if we need to change/disable
+// some PDF.js features, e.g. range requests
+if (typeof PDFJS === 'undefined') {
+  (typeof window !== 'undefined' ? window : this).PDFJS = {};
+}
+
+// Checking if the typed arrays are supported
+// Support: iOS<6.0 (subarray), IE<10, Android<4.0
+(function checkTypedArrayCompatibility() {
+  if (typeof Uint8Array !== 'undefined') {
+    // Support: iOS<6.0
+    if (typeof Uint8Array.prototype.subarray === 'undefined') {
+        Uint8Array.prototype.subarray = function subarray(start, end) {
+          return new Uint8Array(this.slice(start, end));
+        };
+        Float32Array.prototype.subarray = function subarray(start, end) {
+          return new Float32Array(this.slice(start, end));
+        };
+    }
+
+    // Support: Android<4.1
+    if (typeof Float64Array === 'undefined') {
+      window.Float64Array = Float32Array;
+    }
+    return;
+  }
+
+  function subarray(start, end) {
+    return new TypedArray(this.slice(start, end));
+  }
+
+  function setArrayOffset(array, offset) {
+    if (arguments.length < 2) {
+      offset = 0;
+    }
+    for (var i = 0, n = array.length; i < n; ++i, ++offset) {
+      this[offset] = array[i] & 0xFF;
+    }
+  }
+
+  function TypedArray(arg1) {
+    var result, i, n;
+    if (typeof arg1 === 'number') {
+      result = [];
+      for (i = 0; i < arg1; ++i) {
+        result[i] = 0;
+      }
+    } else if ('slice' in arg1) {
+      result = arg1.slice(0);
+    } else {
+      result = [];
+      for (i = 0, n = arg1.length; i < n; ++i) {
+        result[i] = arg1[i];
+      }
+    }
+
+    result.subarray = subarray;
+    result.buffer = result;
+    result.byteLength = result.length;
+    result.set = setArrayOffset;
+
+    if (typeof arg1 === 'object' && arg1.buffer) {
+      result.buffer = arg1.buffer;
+    }
+    return result;
+  }
+
+  window.Uint8Array = TypedArray;
+  window.Int8Array = TypedArray;
+
+  // we don't need support for set, byteLength for 32-bit array
+  // so we can use the TypedArray as well
+  window.Uint32Array = TypedArray;
+  window.Int32Array = TypedArray;
+  window.Uint16Array = TypedArray;
+  window.Float32Array = TypedArray;
+  window.Float64Array = TypedArray;
+})();
+
+// URL = URL || webkitURL
+// Support: Safari<7, Android 4.2+
+(function normalizeURLObject() {
+  if (!window.URL) {
+    window.URL = window.webkitURL;
+  }
+})();
+
+// Object.defineProperty()?
+// Support: Android<4.0, Safari<5.1
+(function checkObjectDefinePropertyCompatibility() {
+  if (typeof Object.defineProperty !== 'undefined') {
+    var definePropertyPossible = true;
+    try {
+      // some browsers (e.g. safari) cannot use defineProperty() on DOM objects
+      // and thus the native version is not sufficient
+      Object.defineProperty(new Image(), 'id', { value: 'test' });
+      // ... another test for android gb browser for non-DOM objects
+      var Test = function Test() {};
+      Test.prototype = { get id() { } };
+      Object.defineProperty(new Test(), 'id',
+        { value: '', configurable: true, enumerable: true, writable: false });
+    } catch (e) {
+      definePropertyPossible = false;
+    }
+    if (definePropertyPossible) {
+      return;
+    }
+  }
+
+  Object.defineProperty = function objectDefineProperty(obj, name, def) {
+    delete obj[name];
+    if ('get' in def) {
+      obj.__defineGetter__(name, def['get']);
+    }
+    if ('set' in def) {
+      obj.__defineSetter__(name, def['set']);
+    }
+    if ('value' in def) {
+      obj.__defineSetter__(name, function objectDefinePropertySetter(value) {
+        this.__defineGetter__(name, function objectDefinePropertyGetter() {
+          return value;
+        });
+        return value;
+      });
+      obj[name] = def.value;
+    }
+  };
+})();
+
+
+// No XMLHttpRequest#response?
+// Support: IE<11, Android <4.0
+(function checkXMLHttpRequestResponseCompatibility() {
+  var xhrPrototype = XMLHttpRequest.prototype;
+  var xhr = new XMLHttpRequest();
+  if (!('overrideMimeType' in xhr)) {
+    // IE10 might have response, but not overrideMimeType
+    // Support: IE10
+    Object.defineProperty(xhrPrototype, 'overrideMimeType', {
+      value: function xmlHttpRequestOverrideMimeType(mimeType) {}
+    });
+  }
+  if ('responseType' in xhr) {
+    return;
+  }
+
+  // The worker will be using XHR, so we can save time and disable worker.
+  PDFJS.disableWorker = true;
+
+  Object.defineProperty(xhrPrototype, 'responseType', {
+    get: function xmlHttpRequestGetResponseType() {
+      return this._responseType || 'text';
+    },
+    set: function xmlHttpRequestSetResponseType(value) {
+      if (value === 'text' || value === 'arraybuffer') {
+        this._responseType = value;
+        if (value === 'arraybuffer' &&
+            typeof this.overrideMimeType === 'function') {
+          this.overrideMimeType('text/plain; charset=x-user-defined');
+        }
+      }
+    }
+  });
+
+  // Support: IE9
+  if (typeof VBArray !== 'undefined') {
+    Object.defineProperty(xhrPrototype, 'response', {
+      get: function xmlHttpRequestResponseGet() {
+        if (this.responseType === 'arraybuffer') {
+          return new Uint8Array(new VBArray(this.responseBody).toArray());
+        } else {
+          return this.responseText;
+        }
+      }
+    });
+    return;
+  }
+
+  Object.defineProperty(xhrPrototype, 'response', {
+    get: function xmlHttpRequestResponseGet() {
+      if (this.responseType !== 'arraybuffer') {
+        return this.responseText;
+      }
+      var text = this.responseText;
+      var i, n = text.length;
+      var result = new Uint8Array(n);
+      for (i = 0; i < n; ++i) {
+        result[i] = text.charCodeAt(i) & 0xFF;
+      }
+      return result.buffer;
+    }
+  });
+})();
+
+// window.btoa (base64 encode function) ?
+// Support: IE<10
+(function checkWindowBtoaCompatibility() {
+  if ('btoa' in window) {
+    return;
+  }
+
+  var digits =
+    'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
+
+  window.btoa = function windowBtoa(chars) {
+    var buffer = '';
+    var i, n;
+    for (i = 0, n = chars.length; i < n; i += 3) {
+      var b1 = chars.charCodeAt(i) & 0xFF;
+      var b2 = chars.charCodeAt(i + 1) & 0xFF;
+      var b3 = chars.charCodeAt(i + 2) & 0xFF;
+      var d1 = b1 >> 2, d2 = ((b1 & 3) << 4) | (b2 >> 4);
+      var d3 = i + 1 < n ? ((b2 & 0xF) << 2) | (b3 >> 6) : 64;
+      var d4 = i + 2 < n ? (b3 & 0x3F) : 64;
+      buffer += (digits.charAt(d1) + digits.charAt(d2) +
+                 digits.charAt(d3) + digits.charAt(d4));
+    }
+    return buffer;
+  };
+})();
+
+// window.atob (base64 encode function)?
+// Support: IE<10
+(function checkWindowAtobCompatibility() {
+  if ('atob' in window) {
+    return;
+  }
+
+  // https://github.com/davidchambers/Base64.js
+  var digits =
+    'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
+  window.atob = function (input) {
+    input = input.replace(/=+$/, '');
+    if (input.length % 4 === 1) {
+      throw new Error('bad atob input');
+    }
+    for (
+      // initialize result and counters
+      var bc = 0, bs, buffer, idx = 0, output = '';
+      // get next character
+      buffer = input.charAt(idx++);
+      // character found in table?
+      // initialize bit storage and add its ascii value
+      ~buffer && (bs = bc % 4 ? bs * 64 + buffer : buffer,
+        // and if not first of each 4 characters,
+        // convert the first 8 bits to one ascii character
+        bc++ % 4) ? output += String.fromCharCode(255 & bs >> (-2 * bc & 6)) : 0
+    ) {
+      // try to find character in table (0-63, not found => -1)
+      buffer = digits.indexOf(buffer);
+    }
+    return output;
+  };
+})();
+
+// Function.prototype.bind?
+// Support: Android<4.0, iOS<6.0
+(function checkFunctionPrototypeBindCompatibility() {
+  if (typeof Function.prototype.bind !== 'undefined') {
+    return;
+  }
+
+  Function.prototype.bind = function functionPrototypeBind(obj) {
+    var fn = this, headArgs = Array.prototype.slice.call(arguments, 1);
+    var bound = function functionPrototypeBindBound() {
+      var args = headArgs.concat(Array.prototype.slice.call(arguments));
+      return fn.apply(obj, args);
+    };
+    return bound;
+  };
+})();
+
+// HTMLElement dataset property
+// Support: IE<11, Safari<5.1, Android<4.0
+(function checkDatasetProperty() {
+  var div = document.createElement('div');
+  if ('dataset' in div) {
+    return; // dataset property exists
+  }
+
+  Object.defineProperty(HTMLElement.prototype, 'dataset', {
+    get: function() {
+      if (this._dataset) {
+        return this._dataset;
+      }
+
+      var dataset = {};
+      for (var j = 0, jj = this.attributes.length; j < jj; j++) {
+        var attribute = this.attributes[j];
+        if (attribute.name.substring(0, 5) !== 'data-') {
+          continue;
+        }
+        var key = attribute.name.substring(5).replace(/\-([a-z])/g,
+          function(all, ch) {
+            return ch.toUpperCase();
+          });
+        dataset[key] = attribute.value;
+      }
+
+      Object.defineProperty(this, '_dataset', {
+        value: dataset,
+        writable: false,
+        enumerable: false
+      });
+      return dataset;
+    },
+    enumerable: true
+  });
+})();
+
+// HTMLElement classList property
+// Support: IE<10, Android<4.0, iOS<5.0
+(function checkClassListProperty() {
+  var div = document.createElement('div');
+  if ('classList' in div) {
+    return; // classList property exists
+  }
+
+  function changeList(element, itemName, add, remove) {
+    var s = element.className || '';
+    var list = s.split(/\s+/g);
+    if (list[0] === '') {
+      list.shift();
+    }
+    var index = list.indexOf(itemName);
+    if (index < 0 && add) {
+      list.push(itemName);
+    }
+    if (index >= 0 && remove) {
+      list.splice(index, 1);
+    }
+    element.className = list.join(' ');
+    return (index >= 0);
+  }
+
+  var classListPrototype = {
+    add: function(name) {
+      changeList(this.element, name, true, false);
+    },
+    contains: function(name) {
+      return changeList(this.element, name, false, false);
+    },
+    remove: function(name) {
+      changeList(this.element, name, false, true);
+    },
+    toggle: function(name) {
+      changeList(this.element, name, true, true);
+    }
+  };
+
+  Object.defineProperty(HTMLElement.prototype, 'classList', {
+    get: function() {
+      if (this._classList) {
+        return this._classList;
+      }
+
+      var classList = Object.create(classListPrototype, {
+        element: {
+          value: this,
+          writable: false,
+          enumerable: true
+        }
+      });
+      Object.defineProperty(this, '_classList', {
+        value: classList,
+        writable: false,
+        enumerable: false
+      });
+      return classList;
+    },
+    enumerable: true
+  });
+})();
+
+// Check console compatibility
+// In older IE versions the console object is not available
+// unless console is open.
+// Support: IE<10
+(function checkConsoleCompatibility() {
+  if (!('console' in window)) {
+    window.console = {
+      log: function() {},
+      error: function() {},
+      warn: function() {}
+    };
+  } else if (!('bind' in console.log)) {
+    // native functions in IE9 might not have bind
+    console.log = (function(fn) {
+      return function(msg) { return fn(msg); };
+    })(console.log);
+    console.error = (function(fn) {
+      return function(msg) { return fn(msg); };
+    })(console.error);
+    console.warn = (function(fn) {
+      return function(msg) { return fn(msg); };
+    })(console.warn);
+  }
+})();
+
+// Check onclick compatibility in Opera
+// Support: Opera<15
+(function checkOnClickCompatibility() {
+  // workaround for reported Opera bug DSK-354448:
+  // onclick fires on disabled buttons with opaque content
+  function ignoreIfTargetDisabled(event) {
+    if (isDisabled(event.target)) {
+      event.stopPropagation();
+    }
+  }
+  function isDisabled(node) {
+    return node.disabled || (node.parentNode && isDisabled(node.parentNode));
+  }
+  if (navigator.userAgent.indexOf('Opera') !== -1) {
+    // use browser detection since we cannot feature-check this bug
+    document.addEventListener('click', ignoreIfTargetDisabled, true);
+  }
+})();
+
+// Checks if possible to use URL.createObjectURL()
+// Support: IE
+(function checkOnBlobSupport() {
+  // sometimes IE loosing the data created with createObjectURL(), see #3977
+  if (navigator.userAgent.indexOf('Trident') >= 0) {
+    PDFJS.disableCreateObjectURL = true;
+  }
+})();
+
+// Checks if navigator.language is supported
+(function checkNavigatorLanguage() {
+  if ('language' in navigator) {
+    return;
+  }
+  PDFJS.locale = navigator.userLanguage || 'en-US';
+})();
+
+(function checkRangeRequests() {
+  // Safari has issues with cached range requests see:
+  // https://github.com/mozilla/pdf.js/issues/3260
+  // Last tested with version 6.0.4.
+  // Support: Safari 6.0+
+  var isSafari = Object.prototype.toString.call(
+                  window.HTMLElement).indexOf('Constructor') > 0;
+
+  // Older versions of Android (pre 3.0) has issues with range requests, see:
+  // https://github.com/mozilla/pdf.js/issues/3381.
+  // Make sure that we only match webkit-based Android browsers,
+  // since Firefox/Fennec works as expected.
+  // Support: Android<3.0
+  var regex = /Android\s[0-2][^\d]/;
+  var isOldAndroid = regex.test(navigator.userAgent);
+
+  // Range requests are broken in Chrome 39 and 40, https://crbug.com/442318
+  var isChromeWithRangeBug = /Chrome\/(39|40)\./.test(navigator.userAgent);
+
+  if (isSafari || isOldAndroid || isChromeWithRangeBug) {
+    PDFJS.disableRange = true;
+    PDFJS.disableStream = true;
+  }
+})();
+
+// Check if the browser supports manipulation of the history.
+// Support: IE<10, Android<4.2
+(function checkHistoryManipulation() {
+  // Android 2.x has so buggy pushState support that it was removed in
+  // Android 3.0 and restored as late as in Android 4.2.
+  // Support: Android 2.x
+  if (!history.pushState || navigator.userAgent.indexOf('Android 2.') >= 0) {
+    PDFJS.disableHistory = true;
+  }
+})();
+
+// Support: IE<11, Chrome<21, Android<4.4, Safari<6
+(function checkSetPresenceInImageData() {
+  // IE < 11 will use window.CanvasPixelArray which lacks set function.
+  if (window.CanvasPixelArray) {
+    if (typeof window.CanvasPixelArray.prototype.set !== 'function') {
+      window.CanvasPixelArray.prototype.set = function(arr) {
+        for (var i = 0, ii = this.length; i < ii; i++) {
+          this[i] = arr[i];
+        }
+      };
+    }
+  } else {
+    // Old Chrome and Android use an inaccessible CanvasPixelArray prototype.
+    // Because we cannot feature detect it, we rely on user agent parsing.
+    var polyfill = false, versionMatch;
+    if (navigator.userAgent.indexOf('Chrom') >= 0) {
+      versionMatch = navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./);
+      // Chrome < 21 lacks the set function.
+      polyfill = versionMatch && parseInt(versionMatch[2]) < 21;
+    } else if (navigator.userAgent.indexOf('Android') >= 0) {
+      // Android < 4.4 lacks the set function.
+      // Android >= 4.4 will contain Chrome in the user agent,
+      // thus pass the Chrome check above and not reach this block.
+      polyfill = /Android\s[0-4][^\d]/g.test(navigator.userAgent);
+    } else if (navigator.userAgent.indexOf('Safari') >= 0) {
+      versionMatch = navigator.userAgent.
+        match(/Version\/([0-9]+)\.([0-9]+)\.([0-9]+) Safari\//);
+      // Safari < 6 lacks the set function.
+      polyfill = versionMatch && parseInt(versionMatch[1]) < 6;
+    }
+
+    if (polyfill) {
+      var contextPrototype = window.CanvasRenderingContext2D.prototype;
+      var createImageData = contextPrototype.createImageData;
+      contextPrototype.createImageData = function(w, h) {
+        var imageData = createImageData.call(this, w, h);
+        imageData.data.set = function(arr) {
+          for (var i = 0, ii = this.length; i < ii; i++) {
+            this[i] = arr[i];
+          }
+        };
+        return imageData;
+      };
+      // this closure will be kept referenced, so clear its vars
+      contextPrototype = null;
+    }
+  }
+})();
+
+// Support: IE<10, Android<4.0, iOS
+(function checkRequestAnimationFrame() {
+  function fakeRequestAnimationFrame(callback) {
+    window.setTimeout(callback, 20);
+  }
+
+  var isIOS = /(iPad|iPhone|iPod)/g.test(navigator.userAgent);
+  if (isIOS) {
+    // requestAnimationFrame on iOS is broken, replacing with fake one.
+    window.requestAnimationFrame = fakeRequestAnimationFrame;
+    return;
+  }
+  if ('requestAnimationFrame' in window) {
+    return;
+  }
+  window.requestAnimationFrame =
+    window.mozRequestAnimationFrame ||
+    window.webkitRequestAnimationFrame ||
+    fakeRequestAnimationFrame;
+})();
+
+(function checkCanvasSizeLimitation() {
+  var isIOS = /(iPad|iPhone|iPod)/g.test(navigator.userAgent);
+  var isAndroid = /Android/g.test(navigator.userAgent);
+  if (isIOS || isAndroid) {
+    // 5MP
+    PDFJS.maxCanvasPixels = 5242880;
+  }
+})();
+
+// Disable fullscreen support for certain problematic configurations.
+// Support: IE11+ (when embedded).
+(function checkFullscreenSupport() {
+  var isEmbeddedIE = (navigator.userAgent.indexOf('Trident') >= 0 &&
+                      window.parent !== window);
+  if (isEmbeddedIE) {
+    PDFJS.disableFullscreen = true;
+  }
+})();
+
+// Provides document.currentScript support
+// Support: IE, Chrome<29.
+(function checkCurrentScript() {
+  if ('currentScript' in document) {
+    return;
+  }
+  Object.defineProperty(document, 'currentScript', {
+    get: function () {
+      var scripts = document.getElementsByTagName('script');
+      return scripts[scripts.length - 1];
+    },
+    enumerable: true,
+    configurable: true
+  });
+})();

public/plugins/pdfjs-1.4.20/web/debugger.js

@@ -0,0 +1,618 @@
+/* Copyright 2012 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.
+ */
+/* globals PDFJS */
+
+'use strict';
+
+var FontInspector = (function FontInspectorClosure() {
+  var fonts;
+  var active = false;
+  var fontAttribute = 'data-font-name';
+  function removeSelection() {
+    var divs = document.querySelectorAll('div[' + fontAttribute + ']');
+    for (var i = 0, ii = divs.length; i < ii; ++i) {
+      var div = divs[i];
+      div.className = '';
+    }
+  }
+  function resetSelection() {
+    var divs = document.querySelectorAll('div[' + fontAttribute + ']');
+    for (var i = 0, ii = divs.length; i < ii; ++i) {
+      var div = divs[i];
+      div.className = 'debuggerHideText';
+    }
+  }
+  function selectFont(fontName, show) {
+    var divs = document.querySelectorAll('div[' + fontAttribute + '=' +
+                                         fontName + ']');
+    for (var i = 0, ii = divs.length; i < ii; ++i) {
+      var div = divs[i];
+      div.className = show ? 'debuggerShowText' : 'debuggerHideText';
+    }
+  }
+  function textLayerClick(e) {
+    if (!e.target.dataset.fontName ||
+        e.target.tagName.toUpperCase() !== 'DIV') {
+      return;
+    }
+    var fontName = e.target.dataset.fontName;
+    var selects = document.getElementsByTagName('input');
+    for (var i = 0; i < selects.length; ++i) {
+      var select = selects[i];
+      if (select.dataset.fontName !== fontName) {
+        continue;
+      }
+      select.checked = !select.checked;
+      selectFont(fontName, select.checked);
+      select.scrollIntoView();
+    }
+  }
+  return {
+    // Properties/functions needed by PDFBug.
+    id: 'FontInspector',
+    name: 'Font Inspector',
+    panel: null,
+    manager: null,
+    init: function init() {
+      var panel = this.panel;
+      panel.setAttribute('style', 'padding: 5px;');
+      var tmp = document.createElement('button');
+      tmp.addEventListener('click', resetSelection);
+      tmp.textContent = 'Refresh';
+      panel.appendChild(tmp);
+
+      fonts = document.createElement('div');
+      panel.appendChild(fonts);
+    },
+    cleanup: function cleanup() {
+      fonts.textContent = '';
+    },
+    enabled: false,
+    get active() {
+      return active;
+    },
+    set active(value) {
+      active = value;
+      if (active) {
+        document.body.addEventListener('click', textLayerClick, true);
+        resetSelection();
+      } else {
+        document.body.removeEventListener('click', textLayerClick, true);
+        removeSelection();
+      }
+    },
+    // FontInspector specific functions.
+    fontAdded: function fontAdded(fontObj, url) {
+      function properties(obj, list) {
+        var moreInfo = document.createElement('table');
+        for (var i = 0; i < list.length; i++) {
+          var tr = document.createElement('tr');
+          var td1 = document.createElement('td');
+          td1.textContent = list[i];
+          tr.appendChild(td1);
+          var td2 = document.createElement('td');
+          td2.textContent = obj[list[i]].toString();
+          tr.appendChild(td2);
+          moreInfo.appendChild(tr);
+        }
+        return moreInfo;
+      }
+      var moreInfo = properties(fontObj, ['name', 'type']);
+      var fontName = fontObj.loadedName;
+      var font = document.createElement('div');
+      var name = document.createElement('span');
+      name.textContent = fontName;
+      var download = document.createElement('a');
+      if (url) {
+        url = /url\(['"]?([^\)"']+)/.exec(url);
+        download.href = url[1];
+      } else if (fontObj.data) {
+        url = URL.createObjectURL(new Blob([fontObj.data], {
+          type: fontObj.mimeType
+        }));
+        download.href = url;
+      }
+      download.textContent = 'Download';
+      var logIt = document.createElement('a');
+      logIt.href = '';
+      logIt.textContent = 'Log';
+      logIt.addEventListener('click', function(event) {
+        event.preventDefault();
+        console.log(fontObj);
+      });
+      var select = document.createElement('input');
+      select.setAttribute('type', 'checkbox');
+      select.dataset.fontName = fontName;
+      select.addEventListener('click', (function(select, fontName) {
+        return (function() {
+           selectFont(fontName, select.checked);
+        });
+      })(select, fontName));
+      font.appendChild(select);
+      font.appendChild(name);
+      font.appendChild(document.createTextNode(' '));
+      font.appendChild(download);
+      font.appendChild(document.createTextNode(' '));
+      font.appendChild(logIt);
+      font.appendChild(moreInfo);
+      fonts.appendChild(font);
+      // Somewhat of a hack, should probably add a hook for when the text layer
+      // is done rendering.
+      setTimeout(function() {
+        if (this.active) {
+          resetSelection();
+        }
+      }.bind(this), 2000);
+    }
+  };
+})();
+
+// Manages all the page steppers.
+var StepperManager = (function StepperManagerClosure() {
+  var steppers = [];
+  var stepperDiv = null;
+  var stepperControls = null;
+  var stepperChooser = null;
+  var breakPoints = {};
+  return {
+    // Properties/functions needed by PDFBug.
+    id: 'Stepper',
+    name: 'Stepper',
+    panel: null,
+    manager: null,
+    init: function init() {
+      var self = this;
+      this.panel.setAttribute('style', 'padding: 5px;');
+      stepperControls = document.createElement('div');
+      stepperChooser = document.createElement('select');
+      stepperChooser.addEventListener('change', function(event) {
+        self.selectStepper(this.value);
+      });
+      stepperControls.appendChild(stepperChooser);
+      stepperDiv = document.createElement('div');
+      this.panel.appendChild(stepperControls);
+      this.panel.appendChild(stepperDiv);
+      if (sessionStorage.getItem('pdfjsBreakPoints')) {
+        breakPoints = JSON.parse(sessionStorage.getItem('pdfjsBreakPoints'));
+      }
+    },
+    cleanup: function cleanup() {
+      stepperChooser.textContent = '';
+      stepperDiv.textContent = '';
+      steppers = [];
+    },
+    enabled: false,
+    active: false,
+    // Stepper specific functions.
+    create: function create(pageIndex) {
+      var debug = document.createElement('div');
+      debug.id = 'stepper' + pageIndex;
+      debug.setAttribute('hidden', true);
+      debug.className = 'stepper';
+      stepperDiv.appendChild(debug);
+      var b = document.createElement('option');
+      b.textContent = 'Page ' + (pageIndex + 1);
+      b.value = pageIndex;
+      stepperChooser.appendChild(b);
+      var initBreakPoints = breakPoints[pageIndex] || [];
+      var stepper = new Stepper(debug, pageIndex, initBreakPoints);
+      steppers.push(stepper);
+      if (steppers.length === 1) {
+        this.selectStepper(pageIndex, false);
+      }
+      return stepper;
+    },
+    selectStepper: function selectStepper(pageIndex, selectPanel) {
+      var i;
+      pageIndex = pageIndex | 0;
+      if (selectPanel) {
+        this.manager.selectPanel(this);
+      }
+      for (i = 0; i < steppers.length; ++i) {
+        var stepper = steppers[i];
+        if (stepper.pageIndex === pageIndex) {
+          stepper.panel.removeAttribute('hidden');
+        } else {
+          stepper.panel.setAttribute('hidden', true);
+        }
+      }
+      var options = stepperChooser.options;
+      for (i = 0; i < options.length; ++i) {
+        var option = options[i];
+        option.selected = (option.value | 0) === pageIndex;
+      }
+    },
+    saveBreakPoints: function saveBreakPoints(pageIndex, bps) {
+      breakPoints[pageIndex] = bps;
+      sessionStorage.setItem('pdfjsBreakPoints', JSON.stringify(breakPoints));
+    }
+  };
+})();
+
+// The stepper for each page's IRQueue.
+var Stepper = (function StepperClosure() {
+  // Shorter way to create element and optionally set textContent.
+  function c(tag, textContent) {
+    var d = document.createElement(tag);
+    if (textContent) {
+      d.textContent = textContent;
+    }
+    return d;
+  }
+
+  var opMap = null;
+
+  function simplifyArgs(args) {
+    if (typeof args === 'string') {
+      var MAX_STRING_LENGTH = 75;
+      return args.length <= MAX_STRING_LENGTH ? args :
+        args.substr(0, MAX_STRING_LENGTH) + '...';
+    }
+    if (typeof args !== 'object' || args === null) {
+      return args;
+    }
+    if ('length' in args) { // array
+      var simpleArgs = [], i, ii;
+      var MAX_ITEMS = 10;
+      for (i = 0, ii = Math.min(MAX_ITEMS, args.length); i < ii; i++) {
+        simpleArgs.push(simplifyArgs(args[i]));
+      }
+      if (i < args.length) {
+        simpleArgs.push('...');
+      }
+      return simpleArgs;
+    }
+    var simpleObj = {};
+    for (var key in args) {
+      simpleObj[key] = simplifyArgs(args[key]);
+    }
+    return simpleObj;
+  }
+
+  function Stepper(panel, pageIndex, initialBreakPoints) {
+    this.panel = panel;
+    this.breakPoint = 0;
+    this.nextBreakPoint = null;
+    this.pageIndex = pageIndex;
+    this.breakPoints = initialBreakPoints;
+    this.currentIdx = -1;
+    this.operatorListIdx = 0;
+  }
+  Stepper.prototype = {
+    init: function init() {
+      var panel = this.panel;
+      var content = c('div', 'c=continue, s=step');
+      var table = c('table');
+      content.appendChild(table);
+      table.cellSpacing = 0;
+      var headerRow = c('tr');
+      table.appendChild(headerRow);
+      headerRow.appendChild(c('th', 'Break'));
+      headerRow.appendChild(c('th', 'Idx'));
+      headerRow.appendChild(c('th', 'fn'));
+      headerRow.appendChild(c('th', 'args'));
+      panel.appendChild(content);
+      this.table = table;
+      if (!opMap) {
+        opMap = Object.create(null);
+        for (var key in PDFJS.OPS) {
+          opMap[PDFJS.OPS[key]] = key;
+        }
+      }
+    },
+    updateOperatorList: function updateOperatorList(operatorList) {
+      var self = this;
+
+      function cboxOnClick() {
+        var x = +this.dataset.idx;
+        if (this.checked) {
+          self.breakPoints.push(x);
+        } else {
+          self.breakPoints.splice(self.breakPoints.indexOf(x), 1);
+        }
+        StepperManager.saveBreakPoints(self.pageIndex, self.breakPoints);
+      }
+
+      var MAX_OPERATORS_COUNT = 15000;
+      if (this.operatorListIdx > MAX_OPERATORS_COUNT) {
+        return;
+      }
+
+      var chunk = document.createDocumentFragment();
+      var operatorsToDisplay = Math.min(MAX_OPERATORS_COUNT,
+                                        operatorList.fnArray.length);
+      for (var i = this.operatorListIdx; i < operatorsToDisplay; i++) {
+        var line = c('tr');
+        line.className = 'line';
+        line.dataset.idx = i;
+        chunk.appendChild(line);
+        var checked = this.breakPoints.indexOf(i) !== -1;
+        var args = operatorList.argsArray[i] || [];
+
+        var breakCell = c('td');
+        var cbox = c('input');
+        cbox.type = 'checkbox';
+        cbox.className = 'points';
+        cbox.checked = checked;
+        cbox.dataset.idx = i;
+        cbox.onclick = cboxOnClick;
+
+        breakCell.appendChild(cbox);
+        line.appendChild(breakCell);
+        line.appendChild(c('td', i.toString()));
+        var fn = opMap[operatorList.fnArray[i]];
+        var decArgs = args;
+        if (fn === 'showText') {
+          var glyphs = args[0];
+          var newArgs = [];
+          var str = [];
+          for (var j = 0; j < glyphs.length; j++) {
+            var glyph = glyphs[j];
+            if (typeof glyph === 'object' && glyph !== null) {
+              str.push(glyph.fontChar);
+            } else {
+              if (str.length > 0) {
+                newArgs.push(str.join(''));
+                str = [];
+              }
+              newArgs.push(glyph); // null or number
+            }
+          }
+          if (str.length > 0) {
+            newArgs.push(str.join(''));
+          }
+          decArgs = [newArgs];
+        }
+        line.appendChild(c('td', fn));
+        line.appendChild(c('td', JSON.stringify(simplifyArgs(decArgs))));
+      }
+      if (operatorsToDisplay < operatorList.fnArray.length) {
+        line = c('tr');
+        var lastCell = c('td', '...');
+        lastCell.colspan = 4;
+        chunk.appendChild(lastCell);
+      }
+      this.operatorListIdx = operatorList.fnArray.length;
+      this.table.appendChild(chunk);
+    },
+    getNextBreakPoint: function getNextBreakPoint() {
+      this.breakPoints.sort(function(a, b) { return a - b; });
+      for (var i = 0; i < this.breakPoints.length; i++) {
+        if (this.breakPoints[i] > this.currentIdx) {
+          return this.breakPoints[i];
+        }
+      }
+      return null;
+    },
+    breakIt: function breakIt(idx, callback) {
+      StepperManager.selectStepper(this.pageIndex, true);
+      var self = this;
+      var dom = document;
+      self.currentIdx = idx;
+      var listener = function(e) {
+        switch (e.keyCode) {
+          case 83: // step
+            dom.removeEventListener('keydown', listener, false);
+            self.nextBreakPoint = self.currentIdx + 1;
+            self.goTo(-1);
+            callback();
+            break;
+          case 67: // continue
+            dom.removeEventListener('keydown', listener, false);
+            var breakPoint = self.getNextBreakPoint();
+            self.nextBreakPoint = breakPoint;
+            self.goTo(-1);
+            callback();
+            break;
+        }
+      };
+      dom.addEventListener('keydown', listener, false);
+      self.goTo(idx);
+    },
+    goTo: function goTo(idx) {
+      var allRows = this.panel.getElementsByClassName('line');
+      for (var x = 0, xx = allRows.length; x < xx; ++x) {
+        var row = allRows[x];
+        if ((row.dataset.idx | 0) === idx) {
+          row.style.backgroundColor = 'rgb(251,250,207)';
+          row.scrollIntoView();
+        } else {
+          row.style.backgroundColor = null;
+        }
+      }
+    }
+  };
+  return Stepper;
+})();
+
+var Stats = (function Stats() {
+  var stats = [];
+  function clear(node) {
+    while (node.hasChildNodes()) {
+      node.removeChild(node.lastChild);
+    }
+  }
+  function getStatIndex(pageNumber) {
+    for (var i = 0, ii = stats.length; i < ii; ++i) {
+      if (stats[i].pageNumber === pageNumber) {
+        return i;
+      }
+    }
+    return false;
+  }
+  return {
+    // Properties/functions needed by PDFBug.
+    id: 'Stats',
+    name: 'Stats',
+    panel: null,
+    manager: null,
+    init: function init() {
+      this.panel.setAttribute('style', 'padding: 5px;');
+      PDFJS.enableStats = true;
+    },
+    enabled: false,
+    active: false,
+    // Stats specific functions.
+    add: function(pageNumber, stat) {
+      if (!stat) {
+        return;
+      }
+      var statsIndex = getStatIndex(pageNumber);
+      if (statsIndex !== false) {
+        var b = stats[statsIndex];
+        this.panel.removeChild(b.div);
+        stats.splice(statsIndex, 1);
+      }
+      var wrapper = document.createElement('div');
+      wrapper.className = 'stats';
+      var title = document.createElement('div');
+      title.className = 'title';
+      title.textContent = 'Page: ' + pageNumber;
+      var statsDiv = document.createElement('div');
+      statsDiv.textContent = stat.toString();
+      wrapper.appendChild(title);
+      wrapper.appendChild(statsDiv);
+      stats.push({ pageNumber: pageNumber, div: wrapper });
+      stats.sort(function(a, b) { return a.pageNumber - b.pageNumber; });
+      clear(this.panel);
+      for (var i = 0, ii = stats.length; i < ii; ++i) {
+        this.panel.appendChild(stats[i].div);
+      }
+    },
+    cleanup: function () {
+      stats = [];
+      clear(this.panel);
+    }
+  };
+})();
+
+// Manages all the debugging tools.
+var PDFBug = (function PDFBugClosure() {
+  var panelWidth = 300;
+  var buttons = [];
+  var activePanel = null;
+
+  return {
+    tools: [
+      FontInspector,
+      StepperManager,
+      Stats
+    ],
+    enable: function(ids) {
+      var all = false, tools = this.tools;
+      if (ids.length === 1 && ids[0] === 'all') {
+        all = true;
+      }
+      for (var i = 0; i < tools.length; ++i) {
+        var tool = tools[i];
+        if (all || ids.indexOf(tool.id) !== -1) {
+          tool.enabled = true;
+        }
+      }
+      if (!all) {
+        // Sort the tools by the order they are enabled.
+        tools.sort(function(a, b) {
+          var indexA = ids.indexOf(a.id);
+          indexA = indexA < 0 ? tools.length : indexA;
+          var indexB = ids.indexOf(b.id);
+          indexB = indexB < 0 ? tools.length : indexB;
+          return indexA - indexB;
+        });
+      }
+    },
+    init: function init() {
+      /*
+       * Basic Layout:
+       * PDFBug
+       *  Controls
+       *  Panels
+       *    Panel
+       *    Panel
+       *    ...
+       */
+      var ui = document.createElement('div');
+      ui.id = 'PDFBug';
+
+      var controls = document.createElement('div');
+      controls.setAttribute('class', 'controls');
+      ui.appendChild(controls);
+
+      var panels = document.createElement('div');
+      panels.setAttribute('class', 'panels');
+      ui.appendChild(panels);
+
+      var container = document.getElementById('viewerContainer');
+      container.appendChild(ui);
+      container.style.right = panelWidth + 'px';
+
+      // Initialize all the debugging tools.
+      var tools = this.tools;
+      var self = this;
+      for (var i = 0; i < tools.length; ++i) {
+        var tool = tools[i];
+        var panel = document.createElement('div');
+        var panelButton = document.createElement('button');
+        panelButton.textContent = tool.name;
+        panelButton.addEventListener('click', (function(selected) {
+          return function(event) {
+            event.preventDefault();
+            self.selectPanel(selected);
+          };
+        })(i));
+        controls.appendChild(panelButton);
+        panels.appendChild(panel);
+        tool.panel = panel;
+        tool.manager = this;
+        if (tool.enabled) {
+          tool.init();
+        } else {
+          panel.textContent = tool.name + ' is disabled. To enable add ' +
+                              ' "' + tool.id + '" to the pdfBug parameter ' +
+                              'and refresh (seperate multiple by commas).';
+        }
+        buttons.push(panelButton);
+      }
+      this.selectPanel(0);
+    },
+    cleanup: function cleanup() {
+      for (var i = 0, ii = this.tools.length; i < ii; i++) {
+        if (this.tools[i].enabled) {
+          this.tools[i].cleanup();
+        }
+      }
+    },
+    selectPanel: function selectPanel(index) {
+      if (typeof index !== 'number') {
+        index = this.tools.indexOf(index);
+      }
+      if (index === activePanel) {
+        return;
+      }
+      activePanel = index;
+      var tools = this.tools;
+      for (var j = 0; j < tools.length; ++j) {
+        if (j === index) {
+          buttons[j].setAttribute('class', 'active');
+          tools[j].active = true;
+          tools[j].panel.removeAttribute('hidden');
+        } else {
+          buttons[j].setAttribute('class', '');
+          tools[j].active = false;
+          tools[j].panel.setAttribute('hidden', 'true');
+        }
+      }
+    }
+  };
+})();

public/plugins/pdfjs-1.4.20/web/images/annotation-check.svg

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+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns="http://www.w3.org/2000/svg"
+   width="40"
+   height="40"
+   viewBox="0 0 40 40">
+  <path
+     d="M 1.5006714,23.536225 6.8925879,18.994244 14.585721,26.037937 34.019683,4.5410479 38.499329,9.2235032 14.585721,35.458952 z"
+     id="path4"
+     style="fill:#ffff00;fill-opacity:1;stroke:#000000;stroke-width:1.25402856;stroke-opacity:1" />
+</svg>

public/plugins/pdfjs-1.4.20/web/images/annotation-comment.svg

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+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns="http://www.w3.org/2000/svg"
+   height="40"
+   width="40"
+   viewBox="0 0 40 40">
+  <rect
+     style="fill:#ffff00;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:1;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+     width="33.76017"
+     height="33.76017"
+     x="3.119915"
+     y="3.119915" />
+  <path
+     d="m 20.677967,8.54499 c -7.342801,0 -13.295293,4.954293 -13.295293,11.065751 0,2.088793 0.3647173,3.484376 1.575539,5.150563 L 6.0267418,31.45501 13.560595,29.011117 c 2.221262,1.387962 4.125932,1.665377 7.117372,1.665377 7.3428,0 13.295291,-4.954295 13.295291,-11.065753 0,-6.111458 -5.952491,-11.065751 -13.295291,-11.065751 z"
+     style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:0.93031836;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"/>
+</svg>

public/plugins/pdfjs-1.4.20/web/images/annotation-insert.svg

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns="http://www.w3.org/2000/svg"
+   width="64"
+   height="64"
+   viewBox="0 0 64 64">
+  <path
+     d="M 32.003143,1.4044602 57.432701,62.632577 6.5672991,62.627924 z"
+     style="fill:#ffff00;fill-opacity:0.94117647;fill-rule:nonzero;stroke:#000000;stroke-width:1.00493038;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+</svg>

public/plugins/pdfjs-1.4.20/web/images/annotation-newparagraph.svg

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns="http://www.w3.org/2000/svg"
+   width="64"
+   height="64"
+   viewBox="0 0 64 64">
+  <path
+     d="M 32.003143,10.913072 57.432701,53.086929 6.567299,53.083723 z"
+     id="path2985"
+     style="fill:#ffff00;fill-opacity:0.94117647;fill-rule:nonzero;stroke:#000000;stroke-width:0.83403099;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+</svg>

public/plugins/pdfjs-1.4.20/web/images/annotation-noicon.svg

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns="http://www.w3.org/2000/svg"
+   width="40"
+   height="40"
+   viewBox="0 0 40 40">
+</svg>

public/plugins/pdfjs-1.4.20/web/images/annotation-note.svg

@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns="http://www.w3.org/2000/svg"
+   width="40"
+   height="40"
+   viewBox="0 0 40 40">
+  <rect
+     width="36.075428"
+     height="31.096582"
+     x="1.962286"
+     y="4.4517088"
+     id="rect4"
+     style="fill:#ffff00;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:1.23004246;stroke-opacity:1" />
+  <rect
+     width="27.96859"
+     height="1.5012145"
+     x="6.0157046"
+     y="10.285"
+     id="rect6"
+     style="fill:#000000;fill-opacity:1;stroke:none" />
+  <rect
+     width="27.96859"
+     height="0.85783684"
+     x="6.0157056"
+     y="23.21689"
+     id="rect8"
+     style="fill:#000000;fill-opacity:1;stroke:none" />
+  <rect
+     width="27.96859"
+     height="0.85783684"
+     x="5.8130345"
+     y="28.964394"
+     id="rect10"
+     style="fill:#000000;fill-opacity:1;stroke:none" />
+  <rect
+     width="27.96859"
+     height="0.85783684"
+     x="6.0157046"
+     y="17.426493"
+     id="rect12"
+     style="fill:#000000;fill-opacity:1;stroke:none" />
+</svg>

public/plugins/pdfjs-1.4.20/web/images/annotation-paragraph.svg

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns="http://www.w3.org/2000/svg"
+   width="40"
+   height="40"
+   viewBox="0 0 40 40">
+  <rect
+     width="33.76017"
+     height="33.76017"
+     x="3.119915"
+     y="3.119915"
+     style="fill:#ffff00;fill-opacity:1;fill-rule:evenodd;stroke:#000000;stroke-width:1;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" />
+  <path
+     d="m 17.692678,34.50206 0,-16.182224 c -1.930515,-0.103225 -3.455824,-0.730383 -4.57593,-1.881473 -1.12011,-1.151067 -1.680164,-2.619596 -1.680164,-4.405591 0,-1.992435 0.621995,-3.5796849 1.865988,-4.7617553 1.243989,-1.1820288 3.06352,-1.7730536 5.458598,-1.7730764 l 9.802246,0 0,2.6789711 -2.229895,0 0,26.3251486 -2.632515,0 0,-26.3251486 -3.45324,0 0,26.3251486 z"
+     style="font-size:29.42051125px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:start;line-height:125%;letter-spacing:0px;word-spacing:0px;writing-mode:lr-tb;text-anchor:start;fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:1.07795751;stroke-opacity:1;font-family:Arial;-inkscape-font-specification:Arial" />
+</svg>

public/plugins/pdfjs-1.4.20/web/viewer.html

@@ -0,0 +1,422 @@
+<!DOCTYPE html>
+<!--
+Copyright 2012 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.
+
+Adobe CMap resources are covered by their own copyright but the same license:
+
+    Copyright 1990-2015 Adobe Systems Incorporated.
+
+See https://github.com/adobe-type-tools/cmap-resources
+-->
+<html dir="ltr" mozdisallowselectionprint moznomarginboxes>
+  <head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
+    <meta name="google" content="notranslate">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <title>PDF.js viewer</title>
+
+
+    <link rel="stylesheet" href="viewer.css"/>
+
+    <script src="compatibility.js"></script>
+
+
+
+<!-- This snippet is used in production (included from viewer.html) -->
+<script src="../build/pdf.js"></script>
+
+
+
+    <script src="debugger.js"></script>
+    <script src="viewer.js"></script>
+
+  </head>
+
+  <body tabindex="1" class="loadingInProgress">
+    <div id="outerContainer">
+
+      <div id="sidebarContainer">
+        <div id="toolbarSidebar">
+          <div class="splitToolbarButton toggled">
+            <button id="viewThumbnail" class="toolbarButton group toggled" title="Show Thumbnails" tabindex="2" data-l10n-id="thumbs">
+               <span data-l10n-id="thumbs_label">Thumbnails</span>
+            </button>
+            <button id="viewOutline" class="toolbarButton group" title="Show Document Outline" tabindex="3" data-l10n-id="outline">
+               <span data-l10n-id="outline_label">Document Outline</span>
+            </button>
+            <button id="viewAttachments" class="toolbarButton group" title="Show Attachments" tabindex="4" data-l10n-id="attachments">
+               <span data-l10n-id="attachments_label">Attachments</span>
+            </button>
+          </div>
+        </div>
+        <div id="sidebarContent">
+          <div id="thumbnailView">
+          </div>
+          <div id="outlineView" class="hidden">
+          </div>
+          <div id="attachmentsView" class="hidden">
+          </div>
+        </div>
+      </div>  <!-- sidebarContainer -->
+
+      <div id="mainContainer">
+        <div class="findbar hidden doorHanger hiddenSmallView" id="findbar">
+          <label for="findInput" class="toolbarLabel" data-l10n-id="find_label">Find:</label>
+          <input id="findInput" class="toolbarField" tabindex="91">
+          <div class="splitToolbarButton">
+            <button class="toolbarButton findPrevious" title="" id="findPrevious" tabindex="92" data-l10n-id="find_previous">
+              <span data-l10n-id="find_previous_label">Previous</span>
+            </button>
+            <div class="splitToolbarButtonSeparator"></div>
+            <button class="toolbarButton findNext" title="" id="findNext" tabindex="93" data-l10n-id="find_next">
+              <span data-l10n-id="find_next_label">Next</span>
+            </button>
+          </div>
+          <input type="checkbox" id="findHighlightAll" class="toolbarField" tabindex="94">
+          <label for="findHighlightAll" class="toolbarLabel" data-l10n-id="find_highlight">Highlight all</label>
+          <input type="checkbox" id="findMatchCase" class="toolbarField" tabindex="95">
+          <label for="findMatchCase" class="toolbarLabel" data-l10n-id="find_match_case_label">Match case</label>
+          <span id="findResultsCount" class="toolbarLabel hidden"></span>
+          <span id="findMsg" class="toolbarLabel"></span>
+        </div>  <!-- findbar -->
+
+        <div id="secondaryToolbar" class="secondaryToolbar hidden doorHangerRight">
+          <div id="secondaryToolbarButtonContainer">
+            <button id="secondaryPresentationMode" class="secondaryToolbarButton presentationMode visibleLargeView" title="Switch to Presentation Mode" tabindex="51" data-l10n-id="presentation_mode">
+              <span data-l10n-id="presentation_mode_label">Presentation Mode</span>
+            </button>
+
+            <button id="secondaryOpenFile" class="secondaryToolbarButton openFile visibleLargeView" title="Open File" tabindex="52" data-l10n-id="open_file">
+              <span data-l10n-id="open_file_label">Open</span>
+            </button>
+
+            <button id="secondaryPrint" class="secondaryToolbarButton print visibleMediumView" title="Print" tabindex="53" data-l10n-id="print">
+              <span data-l10n-id="print_label">Print</span>
+            </button>
+
+            <button id="secondaryDownload" class="secondaryToolbarButton download visibleMediumView" title="Download" tabindex="54" data-l10n-id="download">
+              <span data-l10n-id="download_label">Download</span>
+            </button>
+
+            <a href="#" id="secondaryViewBookmark" class="secondaryToolbarButton bookmark visibleSmallView" title="Current view (copy or open in new window)" tabindex="55" data-l10n-id="bookmark">
+              <span data-l10n-id="bookmark_label">Current View</span>
+            </a>
+
+            <div class="horizontalToolbarSeparator visibleLargeView"></div>
+
+            <button id="firstPage" class="secondaryToolbarButton firstPage" title="Go to First Page" tabindex="56" data-l10n-id="first_page">
+              <span data-l10n-id="first_page_label">Go to First Page</span>
+            </button>
+            <button id="lastPage" class="secondaryToolbarButton lastPage" title="Go to Last Page" tabindex="57" data-l10n-id="last_page">
+              <span data-l10n-id="last_page_label">Go to Last Page</span>
+            </button>
+
+            <div class="horizontalToolbarSeparator"></div>
+
+            <button id="pageRotateCw" class="secondaryToolbarButton rotateCw" title="Rotate Clockwise" tabindex="58" data-l10n-id="page_rotate_cw">
+              <span data-l10n-id="page_rotate_cw_label">Rotate Clockwise</span>
+            </button>
+            <button id="pageRotateCcw" class="secondaryToolbarButton rotateCcw" title="Rotate Counterclockwise" tabindex="59" data-l10n-id="page_rotate_ccw">
+              <span data-l10n-id="page_rotate_ccw_label">Rotate Counterclockwise</span>
+            </button>
+
+            <div class="horizontalToolbarSeparator"></div>
+
+            <button id="toggleHandTool" class="secondaryToolbarButton handTool" title="Enable hand tool" tabindex="60" data-l10n-id="hand_tool_enable">
+              <span data-l10n-id="hand_tool_enable_label">Enable hand tool</span>
+            </button>
+
+            <div class="horizontalToolbarSeparator"></div>
+
+            <button id="documentProperties" class="secondaryToolbarButton documentProperties" title="Document Properties…" tabindex="61" data-l10n-id="document_properties">
+              <span data-l10n-id="document_properties_label">Document Properties…</span>
+            </button>
+          </div>
+        </div>  <!-- secondaryToolbar -->
+
+        <div class="toolbar">
+          <div id="toolbarContainer">
+            <div id="toolbarViewer">
+              <div id="toolbarViewerLeft">
+                <button id="sidebarToggle" class="toolbarButton" title="Toggle Sidebar" tabindex="11" data-l10n-id="toggle_sidebar">
+                  <span data-l10n-id="toggle_sidebar_label">Toggle Sidebar</span>
+                </button>
+                <div class="toolbarButtonSpacer"></div>
+                <button id="viewFind" class="toolbarButton group hiddenSmallView" title="Find in Document" tabindex="12" data-l10n-id="findbar">
+                   <span data-l10n-id="findbar_label">Find</span>
+                </button>
+                <div class="splitToolbarButton">
+                  <button class="toolbarButton pageUp" title="Previous Page" id="previous" tabindex="13" data-l10n-id="previous">
+                    <span data-l10n-id="previous_label">Previous</span>
+                  </button>
+                  <div class="splitToolbarButtonSeparator"></div>
+                  <button class="toolbarButton pageDown" title="Next Page" id="next" tabindex="14" data-l10n-id="next">
+                    <span data-l10n-id="next_label">Next</span>
+                  </button>
+                </div>
+                <label id="pageNumberLabel" class="toolbarLabel" for="pageNumber" data-l10n-id="page_label">Page: </label>
+                <input type="number" id="pageNumber" class="toolbarField pageNumber" value="1" size="4" min="1" tabindex="15">
+                <span id="numPages" class="toolbarLabel"></span>
+              </div>
+              <div id="toolbarViewerRight">
+                <button id="presentationMode" class="toolbarButton presentationMode hiddenLargeView" title="Switch to Presentation Mode" tabindex="31" data-l10n-id="presentation_mode">
+                  <span data-l10n-id="presentation_mode_label">Presentation Mode</span>
+                </button>
+
+                <button id="openFile" class="toolbarButton openFile hiddenLargeView" title="Open File" tabindex="32" data-l10n-id="open_file">
+                  <span data-l10n-id="open_file_label">Open</span>
+                </button>
+
+                <button id="print" class="toolbarButton print hiddenMediumView" title="Print" tabindex="33" data-l10n-id="print">
+                  <span data-l10n-id="print_label">Print</span>
+                </button>
+
+                <button id="download" class="toolbarButton download hiddenMediumView" title="Download" tabindex="34" data-l10n-id="download">
+                  <span data-l10n-id="download_label">Download</span>
+                </button>
+                <a href="#" id="viewBookmark" class="toolbarButton bookmark hiddenSmallView" title="Current view (copy or open in new window)" tabindex="35" data-l10n-id="bookmark">
+                  <span data-l10n-id="bookmark_label">Current View</span>
+                </a>
+
+                <div class="verticalToolbarSeparator hiddenSmallView"></div>
+
+                <button id="secondaryToolbarToggle" class="toolbarButton" title="Tools" tabindex="36" data-l10n-id="tools">
+                  <span data-l10n-id="tools_label">Tools</span>
+                </button>
+              </div>
+              <div class="outerCenter">
+                <div class="innerCenter" id="toolbarViewerMiddle">
+                  <div class="splitToolbarButton">
+                    <button id="zoomOut" class="toolbarButton zoomOut" title="Zoom Out" tabindex="21" data-l10n-id="zoom_out">
+                      <span data-l10n-id="zoom_out_label">Zoom Out</span>
+                    </button>
+                    <div class="splitToolbarButtonSeparator"></div>
+                    <button id="zoomIn" class="toolbarButton zoomIn" title="Zoom In" tabindex="22" data-l10n-id="zoom_in">
+                      <span data-l10n-id="zoom_in_label">Zoom In</span>
+                     </button>
+                  </div>
+                  <span id="scaleSelectContainer" class="dropdownToolbarButton">
+                     <select id="scaleSelect" title="Zoom" tabindex="23" data-l10n-id="zoom">
+                      <option id="pageAutoOption" title="" value="auto" selected="selected" data-l10n-id="page_scale_auto">Automatic Zoom</option>
+                      <option id="pageActualOption" title="" value="page-actual" data-l10n-id="page_scale_actual">Actual Size</option>
+                      <option id="pageFitOption" title="" value="page-fit" data-l10n-id="page_scale_fit">Fit Page</option>
+                      <option id="pageWidthOption" title="" value="page-width" data-l10n-id="page_scale_width">Full Width</option>
+                      <option id="customScaleOption" title="" value="custom"></option>
+                      <option title="" value="0.5" data-l10n-id="page_scale_percent" data-l10n-args='{ "scale": 50 }'>50%</option>
+                      <option title="" value="0.75" data-l10n-id="page_scale_percent" data-l10n-args='{ "scale": 75 }'>75%</option>
+                      <option title="" value="1" data-l10n-id="page_scale_percent" data-l10n-args='{ "scale": 100 }'>100%</option>
+                      <option title="" value="1.25" data-l10n-id="page_scale_percent" data-l10n-args='{ "scale": 125 }'>125%</option>
+                      <option title="" value="1.5" data-l10n-id="page_scale_percent" data-l10n-args='{ "scale": 150 }'>150%</option>
+                      <option title="" value="2" data-l10n-id="page_scale_percent" data-l10n-args='{ "scale": 200 }'>200%</option>
+                      <option title="" value="3" data-l10n-id="page_scale_percent" data-l10n-args='{ "scale": 300 }'>300%</option>
+                      <option title="" value="4" data-l10n-id="page_scale_percent" data-l10n-args='{ "scale": 400 }'>400%</option>
+                    </select>
+                  </span>
+                </div>
+              </div>
+            </div>
+            <div id="loadingBar">
+              <div class="progress">
+                <div class="glimmer">
+                </div>
+              </div>
+            </div>
+          </div>
+        </div>
+
+        <menu type="context" id="viewerContextMenu">
+          <menuitem id="contextFirstPage" label="First Page"
+                    data-l10n-id="first_page"></menuitem>
+          <menuitem id="contextLastPage" label="Last Page"
+                    data-l10n-id="last_page"></menuitem>
+          <menuitem id="contextPageRotateCw" label="Rotate Clockwise"
+                    data-l10n-id="page_rotate_cw"></menuitem>
+          <menuitem id="contextPageRotateCcw" label="Rotate Counter-Clockwise"
+                    data-l10n-id="page_rotate_ccw"></menuitem>
+        </menu>
+
+        <div id="viewerContainer" tabindex="0">
+          <div id="viewer" class="pdfViewer"></div>
+        </div>
+
+        <div id="errorWrapper" hidden='true'>
+          <div id="errorMessageLeft">
+            <span id="errorMessage"></span>
+            <button id="errorShowMore" data-l10n-id="error_more_info">
+              More Information
+            </button>
+            <button id="errorShowLess" data-l10n-id="error_less_info" hidden='true'>
+              Less Information
+            </button>
+          </div>
+          <div id="errorMessageRight">
+            <button id="errorClose" data-l10n-id="error_close">
+              Close
+            </button>
+          </div>
+          <div class="clearBoth"></div>
+          <textarea id="errorMoreInfo" hidden='true' readonly="readonly"></textarea>
+        </div>
+      </div> <!-- mainContainer -->
+
+      <div id="overlayContainer" class="hidden">
+        <div id="passwordOverlay" class="container hidden">
+          <div class="dialog">
+            <div class="row">
+              <p id="passwordText" data-l10n-id="password_label">Enter the password to open this PDF file:</p>
+            </div>
+            <div class="row">
+              <!-- The type="password" attribute is set via script, to prevent warnings in Firefox for all http:// documents. -->
+              <input id="password" class="toolbarField" />
+            </div>
+            <div class="buttonRow">
+              <button id="passwordCancel" class="overlayButton"><span data-l10n-id="password_cancel">Cancel</span></button>
+              <button id="passwordSubmit" class="overlayButton"><span data-l10n-id="password_ok">OK</span></button>
+            </div>
+          </div>
+        </div>
+        <div id="documentPropertiesOverlay" class="container hidden">
+          <div class="dialog">
+            <div class="row">
+              <span data-l10n-id="document_properties_file_name">File name:</span> <p id="fileNameField">-</p>
+            </div>
+            <div class="row">
+              <span data-l10n-id="document_properties_file_size">File size:</span> <p id="fileSizeField">-</p>
+            </div>
+            <div class="separator"></div>
+            <div class="row">
+              <span data-l10n-id="document_properties_title">Title:</span> <p id="titleField">-</p>
+            </div>
+            <div class="row">
+              <span data-l10n-id="document_properties_author">Author:</span> <p id="authorField">-</p>
+            </div>
+            <div class="row">
+              <span data-l10n-id="document_properties_subject">Subject:</span> <p id="subjectField">-</p>
+            </div>
+            <div class="row">
+              <span data-l10n-id="document_properties_keywords">Keywords:</span> <p id="keywordsField">-</p>
+            </div>
+            <div class="row">
+              <span data-l10n-id="document_properties_creation_date">Creation Date:</span> <p id="creationDateField">-</p>
+            </div>
+            <div class="row">
+              <span data-l10n-id="document_properties_modification_date">Modification Date:</span> <p id="modificationDateField">-</p>
+            </div>
+            <div class="row">
+              <span data-l10n-id="document_properties_creator">Creator:</span> <p id="creatorField">-</p>
+            </div>
+            <div class="separator"></div>
+            <div class="row">
+              <span data-l10n-id="document_properties_producer">PDF Producer:</span> <p id="producerField">-</p>
+            </div>
+            <div class="row">
+              <span data-l10n-id="document_properties_version">PDF Version:</span> <p id="versionField">-</p>
+            </div>
+            <div class="row">
+              <span data-l10n-id="document_properties_page_count">Page Count:</span> <p id="pageCountField">-</p>
+            </div>
+            <div class="buttonRow">
+              <button id="documentPropertiesClose" class="overlayButton"><span data-l10n-id="document_properties_close">Close</span></button>
+            </div>
+          </div>
+        </div>
+      </div>  <!-- overlayContainer -->
+
+    </div> <!-- outerContainer -->
+    <div id="printContainer"></div>
+<div id="mozPrintCallback-shim" hidden>
+  <style>
+@media print {
+  #printContainer div {
+    page-break-after: always;
+    page-break-inside: avoid;
+  }
+}
+  </style>
+  <style scoped>
+#mozPrintCallback-shim {
+  position: fixed;
+  top: 0;
+  left: 0;
+  height: 100%;
+  width: 100%;
+  z-index: 9999999;
+
+  display: block;
+  text-align: center;
+  background-color: rgba(0, 0, 0, 0.5);
+}
+#mozPrintCallback-shim[hidden] {
+  display: none;
+}
+@media print {
+  #mozPrintCallback-shim {
+    display: none;
+  }
+}
+
+#mozPrintCallback-shim .mozPrintCallback-dialog-box {
+  display: inline-block;
+  margin: -50px auto 0;
+  position: relative;
+  top: 45%;
+  left: 0;
+  min-width: 220px;
+  max-width: 400px;
+
+  padding: 9px;
+
+  border: 1px solid hsla(0, 0%, 0%, .5);
+  border-radius: 2px;
+  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
+
+  background-color: #474747;
+
+  color: hsl(0, 0%, 85%);
+  font-size: 16px;
+  line-height: 20px;
+}
+#mozPrintCallback-shim .progress-row {
+  clear: both;
+  padding: 1em 0;
+}
+#mozPrintCallback-shim progress {
+  width: 100%;
+}
+#mozPrintCallback-shim .relative-progress {
+  clear: both;
+  float: right;
+}
+#mozPrintCallback-shim .progress-actions {
+  clear: both;
+}
+  </style>
+  <div class="mozPrintCallback-dialog-box">
+    <!-- TODO: Localise the following strings -->
+    Preparing document for printing...
+    <div class="progress-row">
+      <progress value="0" max="100"></progress>
+      <span class="relative-progress">0%</span>
+    </div>
+    <div class="progress-actions">
+      <input type="button" value="Cancel" class="mozPrintCallback-cancel">
+    </div>
+  </div>
+</div>
+
+  </body>
+</html>
+

routers/repo/view.go

@@ -70,7 +70,6 @@ func Home(ctx *context.Context) {
 		ctx.Handle(404, "repo.Home", nil)
 		return
 	}
-
 	if entry != nil && !entry.IsDir() {
 		blob := entry.Blob()
 
@@ -92,9 +91,12 @@ func Home(ctx *context.Context) {
 
 			_, isTextFile := base.IsTextFile(buf)
 			_, isImageFile := base.IsImageFile(buf)
+			_, isPDFFile := base.IsPDFFile(buf)
 			ctx.Data["IsFileText"] = isTextFile
 
 			switch {
+			case isPDFFile:
+				ctx.Data["IsPDFFile"] = true
 			case isImageFile:
 				ctx.Data["IsImageFile"] = true
 			case isTextFile:

templates/repo/view_file.tmpl

@@ -31,6 +31,8 @@
 				<div class="view-raw ui center">
 					{{if .IsImageFile}}
 						<img src="{{EscapePound .FileLink}}">
+					{{else if .IsPDFFile}}
+						<iframe width="100%" height="600px" src="{{AppSubUrl}}/plugins/pdfjs-1.4.20/web/viewer.html?file={{EscapePound .FileLink}}"></iframe>
 					{{else}}
 						<a href="{{EscapePound .FileLink}}" rel="nofollow" class="btn btn-gray btn-radius">{{.i18n.Tr "repo.file_view_raw"}}</a>
 					{{end}}