KillerPDF vs word-sys PDF Editor
Comparing two open source alternatives to Adobe Acrobat and Adobe Acrobat Reader and Foxit Reader and Nitro PDF and PDF Expert. Use the comparison below to decide which one fits your needs.
KillerPDF
GPL-3.0KillerPDF is a lightweight, fully portable PDF editor for Windows. Edit, merge, annotate, and sign PDFs locally with no subscription, accounts, or hidden telemetry anywhere on your computer.
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
| KillerPDF | word-sys PDF Editor | |
|---|---|---|
| License | GPL-3.0 | GPL-3.0 |
| Self-hostable | No | No |
| GitHub Stars | 4,073 | 123 |
| Forks | 324 | 3 |
| Open Issues | 48 | 6 |
| Last Commit | Oct 7, 2026 | Oct 9, 2026 |
| First Released | Apr 16, 2026 | Feb 15, 2025 |
| Categories | ||
| Tags |
GitHub stars over time
GitHub stars over time
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