EmbedPDF vs KillerPDF
Comparing two open source alternatives to Adobe Acrobat Reader . Use the comparison below to decide which one fits your needs.
KillerPDF
GPL-3.0Lightweight, fully portable PDF editor for Windows. Edit, merge, annotate, and sign PDFs locally with no subscription, accounts, or hidden telemetry anywhere.
Side-by-side comparison
 EmbedPDF | KillerPDF | |
|---|---|---|
| License | MIT | GPL-3.0 |
| Self-hostable | No | No |
| GitHub Stars | 4,391 | 3,363 |
| Forks | 301 | 253 |
| Open Issues | 204 | 29 |
| Last Commit | Aug 13, 2026 | Aug 5, 2026 |
| First Released | Jan 18, 2025 | Apr 16, 2026 |
| Categories | ||
| Tags |
GitHub stars over time
GitHub stars over time
Similar open source alternatives
PdfDing
Self-hosted PDF manager, viewer, and editor with multi-device sync, tagging, and an in-browser reader; deployable via Docker.
Adobe Acrobat
Outline
The fastest growing-team knowledge base — beautiful, realtime collaborative, feature packed, and markdown compatible Notion and Confluence alternative.
Notion
Sioyek
Cross-platform PDF viewer focused on textbooks and research papers with smart navigation, marks, bookmarks, and bibliography jumping.
Adobe Acrobat
Pympress
Lightweight GTK PDF presenter for dual-screen setups, showing current slide, next slide, and presenter notes on separate displays.
Adobe Acrobat
SumatraPDF
Lightweight, free PDF, eBook, and comic reader for Windows that launches instantly and stays out of the way; multi-format support with minimal interface.
Adobe Acrobat
Koodo Reader
Cross-platform ebook reader supporting PDF, EPUB, MOBI, comics and more, with sync across Windows, macOS, Linux, Android, iOS, and Web.
Adobe Acrobat