# PDF.js PDF.js is a Portable Document Format (PDF) library that is built with HTML5. Our goal is to create a general-purpose, web standards-based platform for parsing and rendering PDFs. This is a pre-built version of the PDF.js source code. It is automatically generated by the build scripts. For usage with older browsers/environments, without native support for the latest JavaScript features, please see the `legacy/` folder. Please see [this wiki page](https://github.com/mozilla/pdf.js/wiki/Frequently-Asked-Questions#faq-support) for information about supported browsers/environments. See https://github.com/mozilla/pdf.js for learning and contributing.