sumatrapdfreader/sumatrapdf
FreeSumatraPDF reader
FreeFree tier
About sumatrapdfreader/sumatrapdf
SumatraPDF is a multi-format document reader for Windows that supports PDF, EPUB, MOBI, CBZ, CBR, FB2, CHM, XPS, and DjVu files. It is open-source software licensed under the (A)GPLv3, with some code under BSD license. The lightweight reader is designed for fast performance and simplicity, making it a popular choice for viewing a wide range of document formats on Windows.
Key Features
Supports PDF, EPUB, MOBI, CBZ, CBR, FB2, CHM, XPS, and DjVu formats
Open-source under (A)GPLv3 license with BSD-licensed components
Native Windows application optimized for performance
Lightweight and portable design
Supports comic book archives (CBZ, CBR)
E-book reading (EPUB, MOBI, FB2)
Pros & Cons
Pros
- Free and open-source with no ads or bloatware
- Supports a wide range of document formats in a single application
- Lightweight and fast, even on older hardware
- Portable version available (no installation required)
Cons
- Windows-only; no native support for macOS or Linux
- Limited advanced editing or annotation features
- UI may appear basic compared to feature-rich alternatives
Best For
Viewing PDF documents and formsReading e-books in EPUB, MOBI, and FB2 formatsBrowsing comic book archives (CBZ, CBR)Opening technical documentation (CHM, XPS)Viewing scanned documents in DjVu format
FAQ
What file formats does SumatraPDF support?
SumatraPDF supports PDF, EPUB, MOBI, CBZ, CBR, FB2, CHM, XPS, and DjVu formats.
Is SumatraPDF free?
Yes, SumatraPDF is completely free and open-source software under the (A)GPLv3 license.
On which operating systems does SumatraPDF run?
SumatraPDF is designed for Windows only. It does not have native versions for macOS or Linux.