SumatraPDF
About SumatraPDF
SumatraPDF is a free and open-source document viewer for Windows, released under the GPL-3.0 license. It is known for being lightweight and fast, opening documents almost instantly with minimal memory use.
Besides PDF, it reads EPUB, MOBI, FB2, CBZ and CBR comics, DjVu, XPS, CHM and images. It runs on Windows 7, 8, 10 and 11 with 32-bit, 64-bit and ARM64 builds, and comes as an installer or a portable version for USB drives. Keyboard shortcuts, themes and toolbar layout are customizable, a command palette speeds up actions, and SyncTeX support makes it popular with LaTeX users. Community translations cover dozens of languages.
Key features
- Fast and lightweight
- PDF, EPUB, MOBI, comics, DjVu, XPS and CHM
- Installer and portable versions
- Customizable shortcuts, themes and toolbar
- Command palette
- Annotations and PDF form filling
- SyncTeX support
Download via Quark Drive
We’re still preparing the Quark Drive share for this app. It will appear here once it’s ready. Tap “Request” to bump it up.
How to install
“Windows protected your PC”
SmartScreen shows this for apps without a paid signature. Click “More info”, then “Run anyway”.
Antivirus blocks it
Open-source apps are often flagged because they aren’t commercially signed. Check the SHA256 first, then allow it in your antivirus.
Won’t start, or a DLL is missing
Usually a missing runtime. Install Microsoft’s Visual C++ Redistributable (x64) and the .NET Desktop Runtime, then try again.
Check the file
Run this in Command Prompt and compare the result with the SHA256 listed for the cloud file:
certutil -hashfile "%USERPROFILE%\Downloads\file-name" SHA256Alternatives
Microsoft Edge
WPS Office
Google Chrome
Firefox
Changelog
FAQ
How do I download SumatraPDF?
The Quark Drive share for SumatraPDF is being prepared and will appear in the download section of this page.
Is SumatraPDF free?
SumatraPDF license: GPL-3.0 开源，完全免费. appwl only lists official builds and charges nothing for downloads.
Which systems does SumatraPDF support?
This page offers SumatraPDF for Windows.
Is SumatraPDF from appwl safe?
appwl only lists official releases with their version and date. You can verify the SHA256 using the install tips on this page.