# PDF.js

PDF.js is 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 checkout:

+ [Workflow](https://github.com/mozilla/pdf.js/wiki/Contributing)
+ [Style Guide](https://github.com/mozilla/pdf.js/wiki/Style-Guide)
+ [Good Beginner Bugs](https://github.com/mozilla/pdf.js/issues?direction=desc&labels=5-good-beginner-bug&page=1&sort=created&state=open)
+ [Priorities](https://github.com/mozilla/pdf.js/issues/milestones)
+ [Attend a Public Meeting](https://github.com/mozilla/pdf.js/wiki/Weekly-Public-Meetings)

For further questions or guidance feel free to stop by #pdfjs on
irc.mozilla.org.

## Getting Started

### Online demo

+ http://mozilla.github.io/pdf.js/web/viewer.html

### Browser Extensions

#### Firefox

PDF.js is built into version 19+ of Firefox, however two extensions are still
available that are updated at a different rate:

+ [Development Version](http://mozilla.github.io/pdf.js/extensions/firefox/pdf.js.xpi) - This version is updated every time new code is merged into the PDF.js codebase. This should be quite stable but still might break from time to time.
+ [Stable Version](https://addons.mozilla.org/firefox/addon/pdfjs) - After version 24 of Firefox is released we no longer plan to support the stable extension. The stable version will then be considered whatever is built into Firefox.

#### Chrome and Opera

The Chromium extension is still somewhat experimental but it can be installed two
ways:

+ [Unofficial Version](https://chrome.google.com/webstore/detail/pdf-viewer/oemmndcbldboiebfnladdacbdfmadadm) - *This extension is maintained by a PDF.js contributor.*
+ Build Your Own - Get the code as explained below and issue `node make chromium`. Then open
Chrome, go to `Tools > Extension` and load the (unpackaged) extension from the
directory `build/chromium`.

The version of the extension for the Opera browser can be found at the [Opera add-ons catalog](https://addons.opera.com/en/extensions/details/pdf-viewer/).

## Getting the Code

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

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

Next, you need to start a local web server as some browsers don't allow opening
PDF files for a file:// url:

    $ node make server

You can install Node via [nvm](https://github.com/creationix/nvm) or the
[official package](http://nodejs.org). If everything worked out, you can now
serve

+ http://localhost:8888/web/viewer.html

You can also view all the test pdf files on the right side serving

+ http://localhost:8888/test/pdfs/?frame

## Building PDF.js

In order to bundle all `src/` files into a final `pdf.js` and build the generic
viewer, issue:

    $ node make generic

This will generate the file `build/generic/build/pdf.js` that can be included in
your final project. The pdf.js file is large and should be minified for
production. Also, if you would like to support more browsers than Firefox you'll
also need to include `compatibility.js` from `build/generic/web/`.

## Learning

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

+ Hello world: http://jsbin.com/pdfjs-helloworld-v2/edit#html,live
+ Simple reader with prev/next page controls: http://jsbin.com/pdfjs-prevnext-v2/edit#html,live

The repo contains a hello world example that you can run locally:

+ [examples/helloworld/](https://github.com/mozilla/pdf.js/blob/master/examples/helloworld/)

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

+ http://www.youtube.com/watch?v=Iv15UY-4Fg8

You can read more about PDF.js here:

+ http://andreasgal.com/2011/06/15/pdf-js/
+ http://blog.mozilla.com/cjones/2011/06/15/overview-of-pdf-js-guts/

Even more learning resources can be found at:

+ https://github.com/mozilla/pdf.js/wiki/Additional-Learning-Resources

## Questions

Talk to us on IRC:

+ #pdfjs on irc.mozilla.org

Join our mailing list:

+ dev-pdf-js@lists.mozilla.org

Subscribe either using lists.mozilla.org or Google Groups:

+ https://lists.mozilla.org/listinfo/dev-pdf-js
+ https://groups.google.com/group/mozilla.dev.pdf-js/topics

Follow us on twitter: @pdfjs

+ http://twitter.com/#!/pdfjs

Weekly Public Meetings

+ https://github.com/mozilla/pdf.js/wiki/Weekly-Public-Meetings