The Fastest
PDF Tools on the Internet
Merge, compress, convert and secure PDFs instantly. No uploads, no waiting. 100% private processing directly in your browser.
Why Choose PDFsHero?
Built for the modern web, optimized for you.
Lightning Fast
All tools run directly in your browser for instant results.
100% Private
Your files never leave your device. We never see your data.
Modern Technology
Built using WebAssembly and high-performance browser engines.
Core Tools
The essentials for managing your PDFs instantly.
Special Features
Advanced utilities for securing and modifying your files.
Frequently Asked Questions
Everything you need to know about PDFsHero.
Is PDFsHero really free?
Yes, all tools are completely free to use with no hidden limits or subscriptions.
Are my files uploaded to a server?
No. PDFsHero processes everything directly in your browser — your files never leave your device.
Do I need to create an account?
No signup required. Just open a tool and start using it.
What file size limits apply?
Since processing happens in your browser, limits depend on your device's memory rather than a fixed server limit — most documents work smoothly.
Which browsers are supported?
PDFsHero works on all modern browsers — Chrome, Firefox, Edge, and Safari.