Firefox PDF Viewer (PDF.js)

Okular is a universal document viewer based on KPDF for KDE 4 with support for advanced document features, such as annotations, forms, and embedded files. Okular combines the excellent functionalities …

With Google Docs Viewer, you can quickly view many file types online, including PDFs, Microsoft Office files, and many image file types.

Free Opener allows users to view, edit and print many different types of files without having to download specialty software. Currently, the software supports over 80 different file formats including …

Crocodoc takes your PDFs, Word documents, and PowerPoint presentations, and lets you view and mark them up online. Documents can be shared with others, who can collaboratively highlight or strikeout …

qpdfview is a Qt-based tabbed document viewer using the Poppler library for PDF rendering and CUPS for printing. Support for the DjVu and PostScript formats can be added via plugins.

Universal Viewer is an advanced file viewer for wide range of formats. Supported file formats are: Images: all major graphics formats: JPG BMP ICO GIF PNG WMF TIFF PSD..., over …

Xpdf is an open source viewer for Portable Document Format (PDF) files. (These are also sometimes also called 'Acrobat' files, from the name of Adobe's PDF software.) The Xpdf project …

The application allows you to directly open and read PDF files that have been saved to your media card – without the need for server-side conversion, services or subscriptions.