Feb 4, 2020 · Explore the open source alternatives to Adobe Acrobat for reading, creating, and editing PDF files.

Aug 5, 2025 · Review and compare some of the best Open Source PDF Editors available online along with the top features and pros and cons of each one.

Jul 27, 2025 · Discover the top 6 open-source PDF editors that offer powerful features and flexibility, making them excellent alternatives to Adobe Acrobat for managing and editing PDF documents.

SumatraPDF is one of those amazing open source programs that does everything a closed-source and/or commercial product does, but better in every way.

Jul 7, 2025 · While it's true that open-source PDF editors with comprehensive editing capabilities are pretty rare, it's not hard to find apps that can do a specific set of PDF tasks and do them well. So, …

May 4, 2025 · Browse free open source PDF software and projects below. Use the toggles on the left to filter open source PDF software by OS, license, language, programming language, and project status.

Stirling is the intelligent, open-source PDF application used by millions. Read, create, and edit PDFs securely in any environment. Use it online, offline, through desktop apps, self-hosted or API.

Stirling PDF is a powerful, open-source PDF editing platform. Run it as a personal desktop app, in the browser, or deploy it on your own servers with a private API.

Depending on the scope and breadth of your PDF editing needs, you might find that a free option is perfectly sufficient. Read on for our recommendations of the best free PDF editors.

Oct 15, 2025 · With over 60 hours of meticulous research, we reviewed 20+ of the best open-source PDF editors, covering both free and paid options. This guide provides unbiased insights into each …