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Software · Office & notes

JSignPdf

Add digital signatures to PDF documents.

  • Completely free
  • Windows, macOS and Linux
  • Open source

Overview

Features described in its Flathub listing, in its GitHub repository and on its official website: document signing and batch processing.

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
  • “JSignPdf — sign PDF documents for free” — official website, 10 November 2026
  • “It supports visible and hidden signatures, certificate levels, timestamping, and batch processing from the command line.” — Flathub, 10 November 2026

At a glance

JSignPdf is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (MPL-2.0 & LGPL-2.1) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Plans and conditions

  • Free content: the free library can be used without paying, under the publisher’s licence.

Strengths

  • Open source code
  • Commercial use allowed

About

JSignPdf is a free, open source application that adds digital signatures to PDF documents. It supports visible and hidden signatures, certificate levels, timestamping, and batch processing from the command line. Features: Visible and hidden digital signatures Certificate levels and timestamping (TSA) PDF encryption and rights management Certificate revocation checks (CRL, OCSP) Command-line batch processing PKCS#11 hardware token support

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Unspecified source (platforms) —
  • 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) (limits, commercial use) —
  • Last technical check: 6 November 2026
  • Description from Flathub — AppStream (Flathub)

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