SumatraPDF is a free PDF, EPUB, MOBI, CHM, XPS, DjVu, CBZ and CBR reader for Windows. It's small and starts up fast. Simplicity of user interface is important to us.



Found a bug? Have feature request? Submit via issue tracker and vote for features you want to see next.

Have feedback or question? Discuss in a forum.

Want to make SumatraPDF work better in your language? Contribute a translation.

Documentation for users

Command Palette

Keyboard shortcuts

Customizing keyboard shortcuts

Advanced options / settings

Set as default PDF viewer

Customize external viewers

Customize search / translation services

Editing annotations

LaTeX integration

Customizing eBook UI

DDE Commands

Configure for restricted use

Supported document formats

Command-line arguments

Installer cmd-line arguments

Uninstalling SumatraPDF

Version history


Contribute translation

How to submit bug reports

Submit crash report

Reporting printing bugs

Update check doesn't work?

Corrupted installation

Why only Windows?

Information for developers

Contribute to SumatraPDF

Build system