KillerPDF vs PdfDing
Comparing two open source alternatives to Adobe Acrobat and Foxit Reader. 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.
PdfDing
AGPL-3.0Self-hosted PDF manager, viewer, and editor with multi-device sync, tagging, and an in-browser reader; deployable via Docker.
Side-by-side comparison
| KillerPDF | PdfDing | |
|---|---|---|
| License | GPL-3.0 | AGPL-3.0 |
| Self-hostable | No | Yes |
| GitHub Stars | 4,073 | 20 |
| Forks | 324 | — |
| Open Issues | 48 | 10 |
| Last Commit | Oct 7, 2026 | Sep 12, 2026 |
| First Released | Apr 16, 2026 | Aug 25, 2026 |
| Categories | ||
| Tags |
GitHub stars over time
GitHub stars over time
Similar open source alternatives
Sioyek
Cross-platform PDF viewer focused on textbooks and research papers with smart navigation, marks, bookmarks, and bibliography jumping.
Adobe Acrobat
DartPDF
A free, local PDF editor for mobile, desktop, and web. Annotate, fill forms, sign, and redact with no account or uploads.
Adobe Acrobat
PdfCraft
Open-source PDF workbench in pure Rust — read, organize, combine, split, comment and secure PDFs.
Adobe Acrobat
EmbedPDF
A PDF viewer that seamlessly integrates with any JavaScript project
Adobe Acrobat Reader
word-sys PDF Editor
A free, open-source PDF editor for Linux that lets you edit text, images and objects, merge documents, and export to DOCX, PPTX and more.
Adobe Acrobat
Pympress
Lightweight GTK PDF presenter for dual-screen setups, showing current slide, next slide, and presenter notes on separate displays.
Adobe Acrobat