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PDF Tools init;
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‎PDF_Tools/README.md‎

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# [PDF Tools](https://github.com/jerone/UserScripts/tree/master/PDF_Tools)
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[![Install](https://raw.github.com/jerone/UserScripts/master/_resources/Install-button.jpg)](https://github.com/jerone/UserScripts/raw/master/PDF_Tools/PDF_Tools.user.js)
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### Description
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Proof Of Concept.
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An userscript that enhances the pdf.js window in Firefox.
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### Screenshot
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![PDF Tools screenshot](https://github.com/jerone/UserScripts/raw/master/PDF_Tools/screenshot.jpg)
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### Compatible
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* [![](https://raw.github.com/jerone/UserScripts/master/_resources/Scriptish.png) Scriptish](https://addons.mozilla.org/firefox/addon/scriptish/) on [![](https://raw.github.com/jerone/UserScripts/master/_resources/Firefox.png) Mozilla Firefox Desktop](http://www.mozilla.org/en-US/firefox/fx/#desktop).
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<sub>Please [notify](https://github.com/jerone/UserScripts/issues/new?title=Userscript%20%3Cname%3E%20%28%3Cversion%3E%29%20also%20works%20in%20%3Cbrowser%3E%20on%20%3Cdesktop/device%3E) when this userscript is successfully tested in another browser...</sub>
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### Version History
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* **0.1**
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* Initial version;
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### Notes
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Test cases:
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- http://mozilla.github.io/pdf.js/web/viewer.html?file=compressed.tracemonkey-pldi-09.pdf

‎PDF_Tools/pdf_tools@httpsgithubcomjeroneuserscripts.user.js‎

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// ==UserScript==
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// @id PDF_Tools@https://github.com/jerone/UserScripts
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// @name PDF Tools
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// @version 1.0
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// @namespace https://github.com/jerone/UserScripts
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// @author jerone
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// @description
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// @include *.pdf
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// @include *.pdf?*
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// @include *.pdf#*
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// @run-at document-end
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// ==/UserScript==
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(function() {
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//console.log(PDFJS.version); // "1.0.277"
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var mimetype = "png";
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var SecondaryToolbar = {
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opened: false,
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initialize: function secondaryToolbarInitialize() {
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this.toolbar = document.createElement("div");
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this.toolbar.classList.add("secondaryToolbar", "doorHangerRight", "hidden");
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this.toolbar.style.right = "180px";
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document.getElementById("mainContainer").appendChild(this.toolbar);
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this.buttonContainer = document.createElement("div");
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this.buttonContainer.classList.add("secondaryToolbarButtonContainer");
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this.toolbar.appendChild(this.buttonContainer);
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this.attachEvents();
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},
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attachEvents: function() {
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/// https://github.com/mozilla/pdf.js/blob/2f5c6d6c3a75f9f44826c776dd356e2f786f35de/web/viewer.js#L2248
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window.addEventListener("click", function click(evt) {
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if (SecondaryToolbar.opened && unsafeWindow.PDFView.container.contains(evt.target)) {
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SecondaryToolbar.close();
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}
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}, false);
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/// https://github.com/mozilla/pdf.js/blob/2f5c6d6c3a75f9f44826c776dd356e2f786f35de/web/viewer.js#L2381
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window.addEventListener("keydown", function keydown(evt) {
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if (SecondaryToolbar.opened && evt.keyCode === 27) { // esc;
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SecondaryToolbar.close();
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}
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});
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},
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render: function() {
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console.log(unsafeWindow.PDFView.pages);
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console.log(unsafeWindow.PDFView.pages[0].draw);
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var pages = unsafeWindow.PDFView.pages;
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for (var i = 0, ii = pages.length; i < ii; i++) {
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var page = pages[i];
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console.log(page, page.draw);
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var img = document.createElement("a");
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img.classList.add("secondaryToolbarButton", "download");
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img.dataset.pageIndex = i;
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img.setAttribute("download", "page" + page.id + "." + mimetype);
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img.setAttribute("title", "Download 'page" + page.id + "." + mimetype + "'");
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img.style.display = "inline-block";
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img.style.boxSizing = "border-box";
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img.appendChild(document.createTextNode("Page " + page.id));
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img.addEventListener("click", function() {
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var page = pages[this.dataset.pageIndex];
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if (!page.canvas) { page.draw(); }
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this.href = page.canvas.toDataURL("image/" + mimetype);
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//window.open( page.canvas.toDataURL("image/" + mimetype));
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});
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//this.buttonContainer.appendChild(img);
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console.log(page.canvas, img, arguments);
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//if (!page.canvas) { page.draw(); }
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var img2 = document.createElement("img");
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//img2.style.width = "16px";
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img2.style.height = "16px";
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img2.style.border = "1px solid red";
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//img2.src = page.canvas.toDataURL("image/" + mimetype);
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img2.src = page.canvas && page.canvas.toDataURL("image/" + mimetype) || "";
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this.buttonContainer.appendChild(img2);
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}
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/*
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unsafeWindow.PDFView.pages.forEach(function(page) {
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console.log(page, page.draw);
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if (page.draw) page.draw();
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var img = document.createElement("button");
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img.classList.add("secondaryToolbarButton", "download");
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img.dataset.canvasURL = page.canvas.toDataURL("image/" + mimetype);
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img.setAttribute("download", page.canvas.id + "." + mimetype);
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img.setAttribute("title", "Download " + page.canvas.id + "." + mimetype);
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img.style.display = "inline-block";
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img.appendChild(document.createTextNode(page.canvas.id));
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img.addEventListener("click", function() {
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this.href = this.dataset.canvasURL;
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});
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this.buttonContainer.appendChild(img);
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console.log(page.canvas, img, arguments);
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});
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/*
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var canvases = document.querySelectorAll("canvas:not(.thumbnailImage)");
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console.log("test", canvases);
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Array.prototype.forEach.call(canvases, function(canvas) {
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var img = document.createElement("button");
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img.classList.add("secondaryToolbarButton", "download");
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img.dataset.canvasURL = canvas.toDataURL("image/" + mimetype);
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img.setAttribute("download", canvas.id + "." + mimetype);
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img.setAttribute("title", "Download " + canvas.id + "." + mimetype);
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img.style.display = "inline-block";
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img.appendChild(document.createTextNode(canvas.id));
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img.addEventListener("click", function() {
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this.href = this.dataset.canvasURL;
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});
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this.buttonContainer.appendChild(img);
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console.log(canvas, img, arguments);
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});*/
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},
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empty: function() {
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while (this.buttonContainer.hasChildNodes()) {
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this.buttonContainer.removeChild(this.buttonContainer.lastChild);
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}
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},
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open: function secondaryToolbarOpen() {
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if (this.opened) {
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return;
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}
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this.opened = true;
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this.toolbar.classList.remove('hidden');
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this.render();
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},
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close: function secondaryToolbarClose(target) {
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if (!this.opened) {
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return;
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} else if (target && !this.toolbar.contains(target)) {
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return;
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}
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this.opened = false;
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this.toolbar.classList.add('hidden');
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this.empty();
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},
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toggle: function secondaryToolbarToggle() {
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if (this.opened) {
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this.close();
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} else {
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this.open();
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}
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}
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};
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SecondaryToolbar.initialize();
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var toolbar = document.getElementById("toolbarViewerRight");
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var btn = document.createElement("button");
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btn.classList.add("toolbarButton", "zoomIn");
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toolbar.insertBefore(btn, toolbar.firstChild);
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btn.addEventListener("click", function() {
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SecondaryToolbar.toggle();
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});
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})();

‎PDF_Tools/screenshot.jpg‎

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