Download SumatraPDF
Official file from sumatrapdfreader.org — not modified or re-hosted by us.
All downloads
SumatraPDF 3.6.1 files
Windows
Links checked October 30, 2026. Each link points to the developer’s own download server. Prefer the developer’s page? Official download page
About SumatraPDF
At a glance: SumatraPDF is a productivity and communication app by Krzysztof Kowalczyk. The latest version is 3.6.1 for Windows. Price: Free. Licence: GPL-3.0. Official website: sumatrapdfreader.org.
SumatraPDF is a free, open-source document reader for Windows that opens PDF, EPUB, MOBI, comic books (CBZ/CBR), DjVu, XPS and CHM files. It is tiny, starts almost instantly and has a deliberately simple interface.
It is ideal as a fast default PDF viewer or for reading e-books and comics on a laptop. There is a portable version that runs without installation.
Best for: Reading PDFs and e-books quickly on Windows without a heavy app.
System requirements
- Windows: 64-bit (x64), 32-bit (x86), ARM64
Features
What you can do with SumatraPDF
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Very fast and small
Opens documents almost instantly.
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Many formats
PDF, EPUB, MOBI, CBZ, CBR, DjVu, XPS and CHM.
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Portable version
Run from a USB stick without installing.
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Keyboard shortcuts
Navigate and search quickly from the keyboard.
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Tabs and annotations
Open several files in tabs and add simple highlights.
Safety
Where these links come from
Versions and download addresses are read automatically from winget (Windows) and Homebrew (macOS), the public package catalogues used by millions of developers. We only show a link when it points to the developer’s own official domain, and we never host, repackage or bundle the files — your browser downloads them directly from the developer.
Check the file after downloading (optional)
Compare the SHA-256 checksum shown above with the one of the file you downloaded. If they match, the file is exactly the one published by the developer.
- Windows: open PowerShell in your Downloads folder and run
Get-FileHash .\filename - Mac: open Terminal and run
shasum -a 256 ~/Downloads/filename
Help
SumatraPDF: frequently asked questions
Is this the official SumatraPDF download?
Yes. The download buttons link directly to the developer’s own servers (sumatrapdfreader.org). DownloadFrom.net does not host, modify or bundle SumatraPDF; we only list the official files and their SHA-256 checksums so you can verify them.
Which Windows file should I download?
For most PCs, choose the recommended 64-bit installer (.exe). Pick an ARM64 file only for Windows on ARM devices (for example Snapdragon laptops), and MSI packages if you deploy software for an organisation. To check your PC, open Settings → System → About and look at “System type”.
Is SumatraPDF free?
Yes. SumatraPDF is free and open source (GPL-3.0).
Can SumatraPDF edit PDFs?
No. It is a reader with basic annotation. Use other tools for editing or filling complex forms.
Is there a Mac version?
No. SumatraPDF is Windows-only.
Alternatives
Alternatives to SumatraPDF
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Adobe Acrobat Reader
Opening, signing and commenting on PDFs where full compatibility matters.
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calibre
Readers with e-book collections and e-reader devices.
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LibreOffice
Home users, students and organisations who need a full office suite for free.
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Thunderbird
People who want a desktop email app that is free, private and not tied to one provider.
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Obsidian
Writers, students and researchers who want private notes they fully own.
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Zoom Workplace
Joining and hosting online meetings, classes and webinars.