Stirling-PDF
Documents & files#1 PDF Application on GitHub that lets you edit PDFs on any device anywhere
95k Custom / see repo Active
Replaces Adobe Acrobat Documents & files
Open-source alternatives to Adobe Acrobat
2 self-hostable options you can run on your own server, compared on facts from GitHub (fetched Oct 21, 2026).
Side-by-side comparison
| Tool |  Stirling-PDF |  Paperless-ngx |
|---|---|---|
| GitHub stars | 94,668 | 46,966 |
| License | Custom / see repo | GPL-3.0 |
| Last push | Oct 21, 2026 Active | Oct 21, 2026 Active |
| Forks | 11,312 | 3,255 |
| Open issues + PRs | 533 | 10 |
| Main language | TypeScript | Python |
| Links | Repo · Website | Repo · Website |
Highlighted cells mark the highest star count and the most recent push. Source: GitHub REST API, per-tool links on each tool page. Copyleft licenses (AGPL/GPL) require sharing modifications if you distribute or (AGPL) serve them; check the repo license before deploying.
The options
Paperless-ngx
Documents & filesA community-supported supercharged document management system: scan, index and archive all your documents
47k GPL-3.0 Active
Replaces Adobe Acrobat More in Documents & files
Nextcloud
Documents & files☁️ Nextcloud server, a safe home for all your data
37k AGPL-3.0 Active
Replaces Dropbox