SumatraPDF vs word-sys PDF Editor
Comparing two open source alternatives to Adobe Acrobat and Foxit Reader and Nitro PDF. Use the comparison below to decide which one fits your needs.
SumatraPDF
GPL-3.0Lightweight, free PDF, eBook, and comic reader for Windows that launches instantly and stays out of the way; multi-format support with minimal interface.
word-sys PDF Editor
GPL-3.0A free, open-source PDF editor for Linux that lets you edit text, images and objects, merge documents, and export to DOCX, PPTX and more.
Side-by-side comparison
| SumatraPDF | word-sys PDF Editor | |
|---|---|---|
| License | GPL-3.0 | GPL-3.0 |
| Self-hostable | No | No |
| GitHub Stars | 17,739 | 123 |
| Forks | 2,055 | 3 |
| Open Issues | 47 | 5 |
| Last Commit | Oct 12, 2026 | Oct 11, 2026 |
| First Released | Oct 2, 2012 | Feb 15, 2025 |
| Categories | ||
| Tags |
GitHub stars over time
GitHub stars over time
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