AltFreeStack

Open Source alternative to Adobe Acrobat in 2026

We compare 1 self-hostable tool you can deploy on your own server in minutes, with license, tech stack and a ready-to-copy docker-compose.

Which one fits you best?

Quick comparison

Sorted by featured first, then GitHub stars as a tiebreaker — the same rule we use across the whole site.

ToolLicenseMinimum RAMDockerGitHub
Stirling PDF
Lightest optionMost popular on GitHub
MIT~256MB✅★ ~91,100

Detailed profile of each alternative

Stirling PDF

Alternative to Adobe Acrobat, Smallpdf

Dev Tools

Self-hosted PDF Swiss army knife, an alternative to Smallpdf/Adobe Acrobat.

MIT ~91.1kOpen-Core🟢 Lightweight · ~256MB
Docker ReadyPermissive License

How much does Adobe Acrobat cost, and how much can you save?

Adobe Acrobat charges a recurring monthly fee. Self-hosting the alternative, you only pay for the server — usually a few dollars a month.

Calculate your exact savings in the SaaS Audit →

Already know which one you want?

Add Stirling PDF to the Stack Builder and generate a ready-to-deploy docker-compose.yml, alone or alongside the rest of your stack.

Build my stack

Frequently asked questions

Do I need Docker to self-host a Adobe Acrobat alternative?

Yes: the only alternative on this list has a ready-to-copy docker-compose.yml. You just need Docker installed on your server.

How much RAM do I need at minimum?

The lightest option on this list is Stirling PDF, which runs on as little as 256MB of RAM — enough for a cheap VPS.

Are they all 100% free, or are there paid features like on Adobe Acrobat?

No: it's Open-Core. The core is free and self-hostable, but some advanced feature may stay paid — we call it out on its page.