SumatraPDF is a PDF, CHM, XPS, DjVu, CBZ and CBR reader for Windows.

SumatraPDF is small, starts up fast and simplicity of UI has a high priority.

Main website with downloads etc. is at http://blog.kowalczyk.info/software/sumatrapdf.

You can get the freshest version (and help us test!) by running pre-release builds: http://blog.kowalczyk.info/software/sumatrapdf/prerelease.html

End user docs:

• command-line arguments that Sumatra understands
• DDE commands that Sumatra understands
• how to configure Sumatra for restricted use
• how to uninstall Sumatra
• configure Sumatra for writing LaTex, with TeXniCenter synchronization (external site)

Technical docs:

• how we store settings in Sumatra

Design and philosophical docs:

• thoughts on toolbar design
• why we don't provide official 64bit builds
• why Sumatra has no tabs