Best Free PDF Tools (No Cost, Tested by Us)

Looking for free pdf tools that actually work? We tested every option below — these are the best free pdf tools that don't cost a thing, with honest pros and cons.

1Our pick #1

PDF Slim

Compress PDF to an exact target size (100KB–5MB) entirely in your browser.

✓ LocalNo sign-upFree

2Our pick #2

Stirling PDF

Self-hosted, local-first PDF manipulation tool for developers and privacy users.

✓ LocalNo sign-upFree

3Our pick #3

PDF24 Tools

Free online PDF tools suite with 30+ utilities, including a desktop app.

No sign-upFreeServer-side