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LibreSign project preview
ProductivityAlternative to Adobe SignAlternative to DocuSignAlternative to PandaDoc

LibreSign

Open-source e-signature solution integrated into Nextcloud and standalone environments.

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LicenseAGPL-3.0
GitHub stars950
Last commit1 weeks ago
Tags6 topics
PdfNextcloudCryptographyDigital SignaturePrivacyE Signature
Overview

Why consider LibreSign?

LibreSign is a cryptographic digital signature solution that enables secure, legally-binding document signing with certificate verification and Nextcloud integration.

Guided learning

Learn LibreSign by building

Practical setup notes, real use cases, and copy-ready examples in one focused guide.

1 min read 3 sections
In this guide3 sections

Overview of LibreSign

LibreSign brings sovereign electronic signatures to organizations prioritizing privacy and legal compliance. It supports PAdES (PDF Advanced Electronic Signatures), visual signature stamps, email verification codes, and full audit logs.

Installing via Nextcloud App Store

If you use Nextcloud, install LibreSign directly:

  1. Open Nextcloud as Administrator.
  2. Go to Apps -> Tools -> Search for LibreSign.
  3. Click Download and enable.

Standalone Signatures and Verification

LibreSign generates cryptographically signed PDF files embeddable with X.509 digital certificates so any standard PDF reader (Adobe Acrobat, PDF4QT) can independently verify signature authenticity and document integrity.

LibreSign is licensed under the AGPL-3.0 license.

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LibreSign FAQs

LibreSign is listed as a Productivity tool on TiloBox. Review the overview, features, and official documentation on this page to decide whether it solves your specific workflow.

Start with the project's GitHub repository and official website for supported installation and deployment instructions. Test the setup with representative data or a small project before rolling it out more widely.

LibreSign is listed under the AGPL-3.0 license. Read the complete license text and the project's notices before using, modifying, or distributing the software.

Production readiness depends on your requirements. Review maintenance activity, security practices, documentation, backup and upgrade procedures, and compatibility with your stack; then validate it in a non-production environment.

LibreSign is listed as an alternative to Adobe Sign. Compare the core workflow, deployment model, integrations, and licensing against your must-have requirements before switching.