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Jonas Jenwald 480110625a Try to, completely, avoid loading the ReadableStream polyfill in MOZCENTRAL builds 
With https://bugzilla.mozilla.org/show_bug.cgi?id=1505122 landing in Firefox 65, the native `ReadableStream` implementation is now enabled by default in Firefox.

Obviously it would be nice to simply stop bundling the polyfill in MOZCENTRAL builds altogether, however given that it's still possible to disable[1] `ReadableStream` this is probably not a good idea just yet.
Nonetheless, now that native support is available, it seems unnecessary (and wasteful) to keep bundling the polyfill twice[2] in MOZCENTRAL builds. Hence this patch, which contains a suggest approach for packing the polyfill in a *separate* file which is then *only* loaded if/when needed.

With this patch, the size of the `gulp mozcentral` build target is thus reduced accordingly:

|       | `build/mozcentral`
|-------|-------------------
|master |   3 461 089
|patch  |   3 340 268

Besides the PDF.js files taking up less space in Firefox this way, the additional benefit is that there's (by default) less code that needs to be loaded and parsed when the PDF Viewer is used which also cannot hurt.

---
[1] In `about:config`, by toggling the `javascript.options.streams` preference.

[2] Once in the `build/pdf.js` file, and once in the `build/pdf.worker.js` file.
2019-01-19 09:05:01 +01:00
.github Attempt to clarify the meaning of "extension" in the ISSUE_TEMPLATE 2017-10-21 11:32:03 +02:00
docs Switch to HTTPS for the license link on the website 2019-01-05 15:35:17 +01:00
examples Clarify that gulp dist-install should be used for the AcroForms example 2019-01-05 15:20:50 +01:00
extensions Try to, completely, avoid loading the ReadableStream polyfill in MOZCENTRAL builds 2019-01-19 09:05:01 +01:00
external Replace String.prototype.substr() occurrences with String.prototype.substring() 2018-09-28 11:41:07 +02:00
l10n Update translations 2019-01-05 14:24:44 +01:00
src Try to, completely, avoid loading the ReadableStream polyfill in MOZCENTRAL builds 2019-01-19 09:05:01 +01:00
test When parsing Metadata, attempt to remove "junk" before the first tag (PR 10398 follow-up) 2019-01-16 12:44:27 +01:00
web Try to, completely, avoid loading the ReadableStream polyfill in MOZCENTRAL builds 2019-01-19 09:05:01 +01:00
.editorconfig Uses editorconfig to maintain consistent coding styles 2015-11-14 07:32:18 +05:30
.eslintignore Turn on ESLint in examples directory, apply examples-specific exceptions 2018-12-11 15:23:26 +01:00
.eslintrc Enable eslint-plugin-import to prevent unresolved paths 2018-11-23 13:50:28 +01:00
.gitattributes Fixing C++,PHP and Pascal presence in the repo 2015-10-29 13:03:51 -05:00
.gitignore Include package-lock.json for reproducible builds 2018-06-02 20:29:47 +02:00
.gitmodules Update fonttools location and version (issue 6223) 2015-07-17 12:51:09 +02:00
.mailmap Add mgol's name to AUTHORS, add .mailmap 2017-11-22 10:46:11 +01:00
.travis.yml Upgrade to Gulp 4 2018-12-17 16:20:13 +01:00
AUTHORS Add SehyunPark to AUTHORS 2017-11-29 22:24:08 +09:00
EXPORT Adds ECCN response statement 2017-10-23 13:31:36 -05:00
gulpfile.js Try to, completely, avoid loading the ReadableStream polyfill in MOZCENTRAL builds 2019-01-19 09:05:01 +01:00
LICENSE cleaned whitespace 2015-02-17 11:07:37 -05:00
package-lock.json Update packages 2019-01-05 14:27:47 +01:00
package.json Update packages 2019-01-05 14:27:47 +01:00
pdfjs.config Bump versions in pdfjs.config 2018-10-27 16:55:23 +02:00
README.md Add Build Status Button 2018-10-13 18:26:48 -04:00
systemjs.config.js Provide custom messages for the no-restricted-globals ESLint rule, and refactor the .eslintrc files (PR 9868 follow-up) 2018-07-23 14:10:13 +02:00

README.md

PDF.js Build Status

PDF.js is a Portable Document Format (PDF) viewer that is built with HTML5.

PDF.js is community-driven and supported by Mozilla Labs. Our goal is to create a general-purpose, web standards-based platform for parsing and rendering PDFs.

Contributing

PDF.js is an open source project and always looking for more contributors. To get involved, visit:

Feel free to stop by #pdfjs on irc.mozilla.org for questions or guidance.

Getting Started

Online demo

Browser Extensions

Firefox

PDF.js is built into version 19+ of Firefox.

Chrome

  • The official extension for Chrome can be installed from the Chrome Web Store. This extension is maintained by @Rob--W.
  • Build Your Own - Get the code as explained below and issue gulp chromium. Then open Chrome, go to Tools > Extension and load the (unpackaged) extension from the directory build/chromium.

Getting the Code

To get a local copy of the current code, clone it using git:

$ git clone https://github.com/mozilla/pdf.js.git
$ cd pdf.js

Next, install Node.js via the official package or via nvm. You need to install the gulp package globally (see also gulp's getting started):

$ npm install -g gulp-cli

If everything worked out, install all dependencies for PDF.js:

$ npm install

Finally, you need to start a local web server as some browsers do not allow opening PDF files using a file:// URL. Run:

$ gulp server

and then you can open:

Please keep in mind that this requires an ES6 compatible browser; refer to Building PDF.js for usage with older browsers.

It is also possible to view all test PDF files on the right side by opening:

Building PDF.js

In order to bundle all src/ files into two production scripts and build the generic viewer, run:

$ gulp generic

This will generate pdf.js and pdf.worker.js in the build/generic/build/ directory. Both scripts are needed but only pdf.js needs to be included since pdf.worker.js will be loaded by pdf.js. The PDF.js files are large and should be minified for production.

Using PDF.js in a web application

To use PDF.js in a web application you can choose to use a pre-built version of the library or to build it from source. We supply pre-built versions for usage with NPM and Bower under the pdfjs-dist name. For more information and examples please refer to the wiki page on this subject.

Including via a CDN

PDF.js is hosted on several free CDNs:

Learning

You can play with the PDF.js API directly from your browser using the live demos below:

More examples can be found in the examples folder. Some of them are using the pdfjs-dist package, which can be built and installed in this repo directory via gulp dist-install command.

For an introduction to the PDF.js code, check out the presentation by our contributor Julian Viereck:

More learning resources can be found at:

Questions

Check out our FAQs and get answers to common questions:

Talk to us on IRC (Internet Relay Chat):

  • #pdfjs on irc.mozilla.org

File an issue:

Follow us on twitter: @pdfjs