Free, open-source alternatives to Adobe Acrobat

Edit, convert and sign PDFs. 3 apps you can run yourself instead of Adobe Acrobat, sorted by how well they replace it. Each one is open source, so your data stays with you.

  1. Stirling-PDFBest match

    Local hosted web application that allows you to perform various operations on PDF files, such as merging, splitting, file conversions and OCR.

    94.1k starsApache-2.0Updated 12 October 2026
  2. BentoPDF

    Powerful, privacy-first, client-side PDF toolkit that allows you to manipulate, edit, merge, and process PDF files directly in your browser.

    16k starsAGPL-3.0Updated 3 October 2026
  3. PdfDing

    PDF manager, viewer and editor offering a seamless user experience on multiple devices. It's designed to be minimal, fast, and easy to set up using Docker.

    AGPL-3.0

Side by side

AppStarsLicenseActivityRuns on
Stirling-PDF94,085Apache-2.0Docker, Java
BentoPDF16,002AGPL-3.0Node.js, Docker
PdfDing-AGPL-3.0Docker, Kubernetes

Why replace Adobe Acrobat?

Adobe Acrobat works, but your data lives in someone else's account, the price can change at any time, and features can disappear. An open-source app you run yourself is yours: you choose where it runs, who can see the data, and when to update.

Questions

What is the best free alternative to Adobe Acrobat?

Stirling-PDF is the closest open-source replacement for Adobe Acrobat in our list. BentoPDF and PdfDing are worth a look too, depending on what you need.

Can I self-host an alternative to Adobe Acrobat?

Yes. All 3 apps on this page are open source and can run on your own server, usually with Docker, or on a managed host that installs them for you.