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Software · Office & notes

Autofirma

Electronic signature application from the Spanish Government.

  • Completely free
  • Linux
  • Open source

Overview

Features described in its Flathub listing: document signing.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Electronic signature application from the Spanish Government” — Flathub, 10 November 2026

At a glance

All of Autofirma is free: no feature is locked behind a paid plan, and its code is open.

Its licence (EUPL-1.1 & GPL-2.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • Commercial use allowed

About

**This app's user interface is only available in Spanish.** AutoFirma provides a graphical interface for the electronic signature of documents. It can be launched from a web browser to sign administrative procedures on E-Government websites. **Note**: DNIe reader support is currently untested and will likely not work. Work is being done to add this feature to the Flatpak package in future updates.

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Official plan pages (pricing, licence, terms) (commercial use) —
  • Last technical check: 6 November 2026
  • Description from Flathub — AppStream (Flathub)

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