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Signature PDF vs LibreSign: catalog facts
Signature PDF	LibreSign
Free Free and open source under the AGPL-3.0 licence, with free public instances.	Free Free and open source.
Web, Self-hosted	Web, Self-hosted
Multi-person signing mode Page organising, metadata editing and compression in one tool	Document signing on your own server Integrates into Nextcloud
Multi-signature mode stores PDFs on the server Signatures are visual, not certificate-based	Requires a Nextcloud server Not a standalone desktop app
Web application, Self-hosted	Self-hosted
Open source	Open source
License: AGPL-3.0	License: AGPL-3.0
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.