Open-source PDF platform to edit, convert, OCR, sign, redact, and automate PDF workflows via a web UI and REST API.

90.5k stars8.2k forkslast commit Actively maintained
Nitro PDF Pro is a cloud-enabled PDF productivity suite for creating, editing, converting and annotating PDFs, managing eSign workflows, and sharing documents. It provides PDF editing, conversion, electronic signatures, collaboration, and document management features.
Open-source PDF platform to edit, convert, OCR, sign, redact, and automate PDF workflows via a web UI and REST API.

90.5k stars8.2k forkslast commit Actively maintained
Self-hostable, privacy-first PDF toolkit that runs fully in the browser for editing, merging, converting, and processing PDFs without server-side uploads.

14.8k stars1.3k forksAGPL-3.0last commit Actively maintained
Self-hosted PDF manager to organize, view, annotate, sign, and share PDFs with multi-device reading progress, tagging, and optional access-controlled links.

1.9k stars121 forksAGPL-3.0last commit Actively maintained
Self-hosted web app that removes background music and reduces noise from videos or audio (including URLs), using FFmpeg and DeepFilterNet-based enhancement.
720 stars52 forksMITlast commit Likely dormant
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 3 of 4 shipped a commit in the last six months. Licences in this list: AGPL-3.0, MIT. In exchange you take on hosting, backups and updates yourself.
Browse everything in Document Processing & PDF Tools.