Pympress vs Sioyek
Comparing two open source alternatives to Adobe Acrobat. Use the comparison below to decide which one fits your needs.
Pympress
GPL-2.0Lightweight GTK PDF presenter for dual-screen setups, showing current slide, next slide, and presenter notes on separate displays.
Sioyek
GPL-3.0Cross-platform PDF viewer focused on textbooks and research papers with smart navigation, marks, bookmarks, and bibliography jumping.
Side-by-side comparison
| Pympress | Sioyek | |
|---|---|---|
| License | GPL-2.0 | GPL-3.0 |
| Self-hostable | No | No |
| GitHub Stars | 1,683 | 9,937 |
| Forks | 116 | 385 |
| Open Issues | 45 | 341 |
| Last Commit | Mar 29, 2026 | Oct 7, 2026 |
| First Released | Sep 17, 2015 | Jul 11, 2021 |
| Categories | ||
| Tags |
GitHub stars over time
GitHub stars over time
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