PDF.js is a web standards-based platform for parsing and rendering Portable Document Formats (PDFs). Open source and built with HTML5, this PDF viewer is supported by a great community and Mozilla Labs. PDF.js can be used on both modern and older browsers, and is built into version 19+ of Firefox.
A simple program to view your favorite pdf documents ( or chm ). Select the document from a list to read/view and "Open selected pdf" from the File menu or start reading in the right display panel.