Sumatra PDF is a slim, free, open-source PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI/FB2 viewer for Windows. Why another PDF reader? Sumatra has a minimalistic design. Simplicity has a higher priority than a lot of features. Its small and starts up very fast. Its designed for portable use: its just one file with no external dependencies so you can easily run it from external USB drive.
- Sumatra does not support editing forms and adding annotations.
- The only FOSS PDF reader on Windows. Very fast, responsive and straight forward. No useless features or complicated UI.
- Free, quick to install, quick to uninstall, loads fast.