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

PSPDFKit is a cloud PDF SDK and API for embedding document viewing, editing, signing, annotation, OCR, redaction, form filling, conversion, and server-side processing into web, mobile, and backend applications. Provides cross-platform SDKs and REST APIs.
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
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. 2 of 2 shipped a commit in the last six months. Licences in this list: AGPL-3.0. In exchange you take on hosting, backups and updates yourself.
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