ViewerJS: Document Reader in JavaScript (release repo, for package/dependency managers)
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ViewerJS ViewerJS version 0.5.9 Sep 3, 2015
AGPL-3.0.txt ViewerJS version 0.5.7 Apr 21, 2015 Small updates, mention Bower register id Feb 18, 2015
bower.json ViewerJS version 0.5.7 Apr 21, 2015


ViewerJS combines a number of excellent open source tools that are built on HTML and javascript. ViewerJS was funded initially by NLnet foundation and is developed by KO GmbH.

The heavy lifting in ViewerJS is done by these awesome projects:


WebODF is a JavaScript library created by KO GmbH. It was started by Jos van den Oever at KO and is now developed by a growing team including external collaborators. It makes it easy to add Open Document Format (ODF) support to your website and to your mobile or desktop applications. It uses HTML and CSS to display ODF documents.


PDF.js is a library created by Andreas Gal and others at Mozilla Labs. It is an HTML5 technology experiment that explores building a faithful and efficient Portable Document Format (PDF) renderer without native code assistance.


ViewerJS is a Free Software project. All code is available under the AGPL.

If you are interested in using ViewerJS in your commercial product (and do not want to disclose your sources / obey AGPL), contact KO GmbH for a commercial license.

Supported Dependency/Package Managers

This repository is explicitely done for dependency managers and package managers. It only contains the files of builds created from released versions of ViewerJS, so they can be directly deployed by those managers.

Currently supported by this repository:

  • Bower, registered in the central Bower registry by: "viewerjs"

We are looking forward to support other managers as well, help welcome.

To get tarballs of the released builds, go to .

For the sources see section Sources.


Find the sources of the ViewerJS module at .