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Quick summary
Sumatra PDF is a free Windows program built for reading documents quickly. It focuses on speed and a small system footprint, so it launches rapidly and keeps resource use low — a good match for people who need a dependable viewer without unnecessary extras.
File types supported
- Comic book archives (CBR/CBZ and similar)
- XPS documents
- MOBI e-book files
- EPUB books
Primary capabilities
- Runs as a portable application so you can use it from a USB stick without installing
- Lets you assign custom hotkeys for faster navigation and control
- Handles multiple open documents with a tabbed layout
Interface and performance
The user interface is uncluttered and easy to use, making document navigation straightforward. Because the program prioritizes minimalism, it opens files quickly and uses little memory and CPU compared with heavier alternatives.
Who should use it
If you want a no-frills, efficient tool to view PDFs and other common reading formats, this is a strong option. It provides enough versatility for various reading needs while avoiding the complexity and size of full-featured editors.
Technical
Title
Sumatra PDF
Requirements
- Windows
Language
English
Available languages
- German
- English
- Spanish
- French
- Italian
- Japanese
- Polish
- Chinese (Simplified)
License
- Free
Latest update
2025-11-03
Author
Krzysztof Kowalczyk
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