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index.html
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<!DOCTYPE html>
<html>
<head>
<title>PDF.js Learning</title>
</head>
<body>
<script type="text/javascript" src="pdf.js"></script>
<link type="text/css" href="text_layer_builder.css" rel="stylesheet">
<script type="text/javascript" src="text_layer_builder.js"></script>
<div id="container"></div>
<script>
var url = "http://mozilla.github.io/pdf.js/web/compressed.tracemonkey-pldi-09.pdf";
PDFJS.getDocument(url)
.then(function (pdf) {
// Get div#container and cache it for later use
var container = document.getElementById("container");
// Loop from 1 to total_number_of_pages in PDF document
for (var i = 1; i <= pdf.numPages; i++) {
// Get desired page
pdf.getPage(i).then(function (page) {
var scale = 1.5;
var viewport = page.getViewport(scale);
var div = document.createElement("div");
// Set id attribute with page-#{pdf_page_number} format
div.setAttribute("id", "page-" + (page.pageIndex + 1));
// This will keep positions of child elements as per our needs
div.setAttribute("style", "position: relative");
// Append div within div#container
container.appendChild(div);
// Create a new Canvas element
var canvas = document.createElement("canvas");
// Append Canvas within div#page-#{pdf_page_number}
div.appendChild(canvas);
var context = canvas.getContext('2d');
canvas.height = viewport.height;
canvas.width = viewport.width;
var renderContext = {
canvasContext: context,
viewport: viewport
};
// Render PDF page
page.render(renderContext)
.then(function () {
// Get text-fragments
return page.getTextContent();
})
.then(function (textContent) {
// Create div which will hold text-fragments
var textLayerDiv = document.createElement("div");
// Set it's class to textLayer which have required CSS styles
textLayerDiv.setAttribute("class", "textLayer");
// Append newly created div in `div#page-#{pdf_page_number}`
div.appendChild(textLayerDiv);
// Create new instance of TextLayerBuilder class
var textLayer = new TextLayerBuilder({
textLayerDiv: textLayerDiv,
pageIndex: page.pageIndex,
viewport: viewport
});
// Set text-fragments
textLayer.setTextContent(textContent);
// Render text-fragments
textLayer.render();
});
});
}
});
</script>
</body>
</html>