# Sumatra PDF is a PDF, ePub, MOBI, CHM, XPS, DjVu, CBZ, CBR reader for Windows

You're seeing this page because SumatraPDF crashed.
You should see a Notepad opened with crash report file.
Help us improve SumatraPDF by submitting a crash log:

- you'll need GitHub account
- post the content of the crash log as a gist at https://gist.github.com/. For example: `Ctrl-A` to select all text, `Ctrl-C` to copy it to a clipboard and then `Ctrl-V` to the gist
- create a bug report at https://github.com/sumatrapdfreader/sumatrapdf/issues
- post a link to the gist in the bug report

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