SumatraPDF
SumatraPDF is a free, open-source PDF tool for Windows. SumatraPDF is a multi-format (PDF, EPUB, MOBI, CBZ, CBR, FB2, CHM, XPS, DjVu) reader for Windows under (A)GPLv3 license, with some code under BSD license (see AUTHORS). It has 17,872 GitHub stars and is released under the GPL-3.0 license, and people use it instead of Adobe Acrobat Reader.
github.com/sumatrapdfreader/sumatrapdf (opens in a new tab)
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About SumatraPDF
SumatraPDF is a multi-format (PDF, EPUB, MOBI, CBZ, CBR, FB2, CHM, XPS, DjVu) reader for Windows under (A)GPLv3 license, with some code under BSD license (see AUTHORS).
Replaces
Commercial software people commonly use SumatraPDF instead of.
- Adobe Acrobat Reader
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Is SumatraPDF free and open source?
Yes. SumatraPDF's source code is public on GitHub under the GPL-3.0 license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.
How do I install SumatraPDF?
Download the installer for Windows from its GitHub Releases page (latest: 3.6.1rel).
Can SumatraPDF replace Adobe Acrobat Reader?
SumatraPDF is commonly used as a free alternative to Adobe Acrobat Reader. Features differ, so check that it opens the file formats and covers the workflows you rely on before switching.