SumatraPDF
Lightweight, fast PDF and ebook reader for Windows—no bloat, no subscription.
Quick facts
- Price model
- Open source
- Starting price
- Free
- Best for
- Fast PDF reading · Low-resource PCs · Ebook viewing on Windows
- Replaces
- Adobe Acrobat Reader subscription, Paid PDF readers
- Platforms
- Windows
- Last verified
- 2026-06-22
Why it's listed
Opens in milliseconds and stays free—perfect for students and office machines.
SumatraPDF opens PDFs, EPUBs, MOBIs, and comic archives instantly with minimal RAM use. It's the antidote to Adobe Acrobat's subscription push for simple reading and annotation needs.
The catch
Windows only; limited advanced PDF editing compared to Acrobat Pro.
Good fit for
- Windows users
- Students
- Office workers who only read PDFs
Not ideal for
- Mac users
- Heavy PDF form designers
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