sioyek
The premium Open Source alternative to Adobe Acrobat
🎯 Best for:Power users reading dense technical documentation and research papers.
What is sioyek?
Replaces standard PDF readers like Adobe Acrobat for academic and technical workflows. It features portal-based navigation and keyboard-driven interactions for navigating large, cross-referenced documents.
Tech Stack
COS & Utilities
Why sioyek?
- • Advanced cross-reference jumping
- • Extensible via scripts
- • Support for multiple monitors
Limitations
- • Steep learning curve
- • Minimalist UI lacks buttons
- • No PDF editing features
3/6/2026
Last Update
305
Forks
285
Issues
GPL-3.0
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to sioyek instantly boosts your runway.
Competitor Cost
-$7,080
/ year (est. based on Adobe Acrobat)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%