# endesive

> endesive (277 stars, 2.19.3 Jan 2026, commits to Sep 2026) is a Python 3.11+ library for developers. It adds Adobe-compatible CMS/CAdES signatures to PDFs with optional TSA timestamps and OCSP data, verifies them, and also signs S/MIME, XAdES and plain data, including through PKCS#11 hardware. MIT, but it ships some pyfpdf-derived code under LGPL-3.0. There is no app, CLI or web UI: you write Python. No sending to signers, tracking or templates.

- Repository: https://github.com/m32/endesive
- Official docs: https://github.com/m32/endesive#readme
- Checked: 2026-10-16

## What it replaces
- DocuSign: Certificate-based digital signatures (PKI) (partial). Developer library for certificate signatures inside your own code; no end-user app or signing workflow.

## Facts, with sources

| Question | Status | Answer | Source | Checked |
|---|---|---|---|---|
| Runs on my machine? | Confirmed | Yes, Python library used in your own code | https://github.com/m32/endesive#readme | 2026-10-16 |
| Code licence | Partial | MIT, with bundled pyfpdf-derived code under LGPL-3.0 (LICENSE.pyfpdf) | https://github.com/m32/endesive/blob/master/pyproject.toml | 2026-10-16 |
| Model weights licence | Confirmed | No separate model weights | https://github.com/m32/endesive#readme | 2026-10-16 |
| Commercial use | Partial | Yes; MIT, plus LGPL-3.0 conditions for the bundled pyfpdf code | https://github.com/m32/endesive/blob/master/LICENSE.pyfpdf | 2026-10-16 |
| Paid services needed? | Confirmed | None required; you supply certificates or an HSM; TSA and OCSP are optional | https://github.com/m32/endesive#features | 2026-10-16 |
| Hardware | Unknown | Not documented beyond Python 3.11+ | none found | - |
| Operating systems | Unknown | README documents Python 3.11+, cryptographic dependencies and PKCS#11/HSM integration; no Windows/macOS/Linux support matrix was found there. Hardware token support must also be checked separately | https://github.com/m32/endesive#installation | 2026-10-16 |
| Setup effort | Confirmed | Easy for Python developers; pip install, then write code | https://github.com/m32/endesive#installation | 2026-10-16 |

GitHub: 277 stars, 100 forks, last push 2026-09-06, archived: no.
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Source: RepoQuarry (https://repoquarry.dev/projects/endesive). Data licence: CC BY 4.0. Quotes are from project documentation and belong to their authors.