Signature PDF 24eme/signaturepdf

Lightweight PHP web app to sign PDFs alone or with others, plus page organising, metadata editing and compression; optional certificate signing.

Creator kit + Compare GitHub ↗ Install guide (official) ↗

Signature PDF at a glance

Checked 15 Oct 2026

Signature PDF (v1.9.2, Dec 2025; commits to Sep 2026) is an AGPL-3.0 PHP web app, installable on Debian/Ubuntu, Alpine or Docker, with many public instances. Multi-signer mode is optional and stores PDFs on the server, optionally GPG-encrypted. A server-side digital signature can be enabled with poppler and NSS certificates. It is a simple signing tool, not a workflow platform: the README documents no signing order, reminders, templates or API.

Cite this pageRepoQuarry. “Signature PDF.” Checked 15 Oct 2026. https://repoquarry.dev/projects/signaturepdf

How much of DocuSign does it replace?

2 of 6 jobs. Simple shared signing of a PDF; no signing order, reminders, templates or API documented.

Send documents for signature Partial replacement

Signing order and reminders Not covered

Audit trail and completion certificate Not covered

Reusable signing templates Not covered

eSignature API and embedded signing Not covered

Certificate-based digital signatures (PKI) Partial replacement

For signing order and reminders, audit trail and completion certificate, reusable signing templates, eSignature API and embedded signing, see other DocuSign alternatives. You may also need to build an interface, an API server and hosting yourself.

Facts, with sources

Every answer links to where we found it. We read the documentation; we did not install it.

Report a correction

QuestionAnswerSourceChecked

Runs on my machine? Yes, self-hosted PHP app (or local PHP built-in server); public instances also exist php -S localhost:8000 -t public github.com · installation.md ↗ 1d ago

Code licence AGPL-3.0 (strong copyleft) Open-source software under the AGPL V3 license. github.com · signaturepdf#license ↗ 1d ago

Model weights licence No separate model weights github.com · signaturepdf#readme ↗ 1d ago

Commercial use Yes, under AGPL-3.0 copyleft terms Open-source software under the AGPL V3 license. github.com · signaturepdf#license ↗ 1d ago

Paid services needed? None required Free web software for signing (alone or with others), organizing (merge, sort, rotate, delete, extract pages, ...), editing metadatas or compressing PDFs. github.com · signaturepdf#readme ↗ 1d ago

Hardware Not documented Know the answer? —

Operating systems Server on Debian/Ubuntu, Alpine Linux or Docker; users sign in a web browser Debian/Ubuntu github.com · signaturepdf#installation ↗ 1d ago

Setup effort Medium; apt packages plus PHP web server, or one Docker command docker run -d --name=signaturepdf -p 8080:80 xgaia/signaturepdf github.com · installation.md ↗ 1d ago