KillerPDF vs Outline
Comparing two open source alternatives to Adobe Acrobat . Use the comparison below to decide which one fits your needs.
KillerPDF
GPL-3.0Lightweight, portable PDF editor for Windows with no subscription or telemetry.
Outline
The fastest growing-team knowledge base — beautiful, realtime collaborative, feature packed, and markdown compatible Notion and Confluence alternative.
Side-by-side comparison
| KillerPDF | Outline | |
|---|---|---|
| License | GPL-3.0 | — |
| Self-hostable | No | Yes |
| GitHub Stars | 3,280 | 40,014 |
| Forks | 244 | 3,470 |
| Open Issues | 13 | 66 |
| Last Commit | Aug 5, 2026 | Aug 6, 2026 |
| First Released | Apr 16, 2026 | May 22, 2016 |
| Categories | ||
| Tags | — |
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