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Merge pull request #9618 from timvandermeij/node-example

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Improve the instructions and code for the `pdf2png` example
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Tim van der Meij 2018-04-01 12:57:14 +02:00 committed by GitHub
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2 changed files with 13 additions and 6 deletions
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7
examples/node/pdf2png/README.md
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@ -4,12 +4,13 @@ Example to demonstrate converting a PDF file to a PNG image using the PDF.js lib
## Getting started ## Getting started
Install the dependencies and build the project: Install the dependencies and build the PDF.js library:
$ npm install $ npm install
$ gulp dist $ gulp dist-install
Install the Node canvas library to convert the first page of a PDF file to a PNG image: Install the Node canvas library and run the example to convert the first page of a
PDF file to a PNG image:
$ npm install canvas $ npm install canvas
$ cd examples/node/pdf2png $ cd examples/node/pdf2png

12
examples/node/pdf2png/pdf2png.js
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@ -51,13 +51,19 @@ NodeCanvasFactory.prototype = {
var pdfjsLib = require('pdfjs-dist'); var pdfjsLib = require('pdfjs-dist');
// Relative path of the PDF file. // Relative path of the PDF file.
var pdfURL = '../../helloworld/helloworld.pdf'; var pdfURL = '../../../web/compressed.tracemonkey-pldi-09.pdf';
// Read the PDF file into a typed array so PDF.js can load it. // Read the PDF file into a typed array so PDF.js can load it.
var rawData = new Uint8Array(fs.readFileSync(pdfURL)); var rawData = new Uint8Array(fs.readFileSync(pdfURL));
// Load the PDF file. // Load the PDF file. The `disableFontFace` and `nativeImageDecoderSupport`
pdfjsLib.getDocument(rawData).then(function (pdfDocument) { // options must be passed because Node.js has no native `@font-face` and
// `Image` support.
pdfjsLib.getDocument({
data: rawData,
disableFontFace: true,
nativeImageDecoderSupport: 'none',
}).then(function (pdfDocument) {
console.log('# PDF document loaded.'); console.log('# PDF document loaded.');
// Get the first page. // Get the first page.