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JSignPdfAutofirma
Free

Free and open source under the MPL-2.0 and LGPL-2.1.

 Free

Free, published by the Spanish government.

Windows, macOS, Linux, Command line Windows, macOS, Linux, Android
  • Visible signatures with a live preview
  • Timestamps plus CRL and OCSP revocation checks
  • Works with Spanish e-government signing procedures from the browser
  • Builds for Windows, macOS, several Linux distributions and Android
  • Requires Java 21 or later
  • Focused on signing rather than general PDF editing
  • Mainly useful for Spanish administrative procedures
  • Documentation and site are in Spanish
Downloadable app Downloadable app
Open source Closed source
License: MPL-2.0 AND LGPL-2.1-only License not stated
No account needed No account needed
Not stated if it works offline Not stated if it works offline

Checked October 1, 2026

Checked October 1, 2026

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