Built in the open
LeedPDF is fully open source under the AGPL-3.0 license. View the code, contribute features, or adapt it for your needs.
Why open source?
We believe PDF annotation tools should be transparent, trustworthy, and community-driven.
Transparency
You can see exactly what LeedPDF does with your documents. No hidden telemetry, no mysterious network requests.
Trust
Open source software can be audited by security researchers and the community. No need to trust—you can verify.
Community
Bug reports, feature requests, and contributions make LeedPDF better for everyone.
Longevity
Even if we stop maintaining LeedPDF, the community can continue developing it. Your investment is protected.
AGPL-3.0 License
LeedPDF is released under the GNU Affero General Public License v3.0.
What this means for you:
You can:
- • Use LeedPDF for any purpose
- • Study and modify the source code
- • Distribute copies
- • Distribute your modifications
You must:
- • Include the license and copyright notice
- • State changes if you modify the code
- • Make source available for network use
- • License derivatives under AGPL-3.0
Not a lawyer? The AGPL-3.0 is similar to GPL-3.0, but it also covers network use. If you modify LeedPDF and offer it as a web service, you must make your source code available too.
Ways to contribute
Whether you code or not, there are many ways to help make LeedPDF better.
Documentation
Help improve guides, tutorials, and API documentation.
Testing
Report bugs, test new features, and help ensure quality.
Code
Fix bugs, add features, or improve performance.
Feedback
Share ideas for features and improvements.
Support
Help other users in discussions and forums.
Spread the word
Tell others about LeedPDF and help grow the community.