We're building the future of documents, openly.

Stirling PDF began with a simple idea: document tools should be transparent, accessible, and fully under your control.

Launch on GitHub

Anthony Stirling launched Stirling PDF V1, quickly attracting attention on GitHub and Reddit.

2023
Global Recognition

Featured organically by Tech YouTubers across 10 countries.

First Million Downloads

Surpassed 1 million downloads across Docker and GitHub.

Top of Hacker News

Stirling PDF twice reached #1 on Hacker News, gaining widespread developer attention.

2024
Company Launch

Raised $2M from GitLab CEO Sid Sijbrandij and Open Core Ventures to turn Stirling PDF into a company.

10M Downloads

Achieved 10 million downloads, cementing Stirling PDF as a leading open-source PDF solution.

Leadership Expansion

Former Amazon executive Matt Joseph joined as CEO, scaling operations and enterprise growth.

2025
TechCrunch Recognition

Named one of TechCrunch’s Top 10 Open Source Startups of 2024.

Enterprise Validation

Verified adoption by 10% of the Fortune 500 through Scarf Analytics.

Our Thesis

Ownership

Everyone should get to own their tools and data. Our Core PDF tools are free and open-source to give you full ownership.

Open Core

We fund our open-source software by offering advanced upgrades to businesses. Core tools stay free and accessible for everyone.

Automation

Software should save time, not waste it. From simple scripts to advanced AI, Stirling PDF is designed to save you time through automation.

10M

Downloads
Across GitHub, Docker, and Community.

10%

of the Fortune 500
Used Stirling PDF in the last year.

58K

GitHub Stars
The most popular PDF project on Github.

Our Leadership

Anthony Stirling
CTO

Previously a Principal Engineer at Discover, Anthony is the original creator of Stirling PDF. He leads all engineering operations.

Matt Joseph
CEO

Matt led teams at Amazon and founded a YC-backed startup before joining Anthony to lead Stirling PDF. He manages all business operations.

Betty Ma
Board Member

COO at Open Core Ventures, our lead investor. Before joining OCV, Betty was an executive at institutions like Morgan Stanley and SVB.