Get a Free Software PDF reader!

PDF it is based on an open standard, so it's possible for anybody to make a PDF reader. This table contains a list of software that is not just free to use, but their free software licenses also allow you to study, improve and share them.

Readers Windows MacOSX Free Operating Systems [1]
BePDF - - Download
ePDFView - - Download
Evince Download - Download
Recommended for your OS![2]
gv - - Download
KPDF - - Download
MuPDF Download - Download
Okular Download Download Download
Recommended for your OS![2]
Sumatra PDF Download - -
Vindaloo - Download -
Xpdf - Download Download
Yap Download - Download
[1] Note that most Free Operating Systems provide package management systems and do not require you to download any files manually from project pages, but you should rather use the package manager. Actually, you are also likely to have a free software pdf reader already installed.
[2] Note that the green background indicates that the reader is recommended for your operating system. The recommendations are based on ease of use and install and do not reflect the technical merits of the software itself.e.

Other proprietary alternatives to Adobe's PDF reader also exist, but like it, their internal working is a a trade secret and these programs do not respect your right to control your own privacy and data.