Shrink your PDFs. Right here, right now.
A PDF compressor that runs entirely in your browser. Pick a resolution, pick a quality level, and download a smaller file — nothing is ever sent to a server.
What it does
Set your resolution
Choose output DPI from 72 up to 300, so you control exactly how sharp the result is.
Three quality levels
Low, medium, or high compression — trade off file size against image clarity in one click.
Never leaves your device
Everything happens locally in your browser tab. No file upload, no server, no waiting.
How it works
01
Choose a PDF
Drag it in or click to browse. Nothing uploads — it stays on your machine.
02
Set resolution & quality
Pick a DPI and a compression level based on how the file will be used.
03
Download the result
See the size reduction, then download the smaller PDF straight away.
Your files stay private. This tool processes everything using your browser’s own capabilities. No file is uploaded, stored, or transmitted anywhere — close the tab and it’s gone.
Why Choose Our PDF Compressor?
Simple and user-friendly interface
Fast PDF compression
Secure offline processing
No registration required
No watermarks
Unlimited usage
Which platforms does PDF Compressor support?
PDF Compressor is a standalone HTML-based tool that works on almost any platform with a modern web browser. No installation or special software is required.
Supported platforms include:
✅ Windows (Windows 10, Windows 11 and earlier versions)
✅ macOS (MacBook and iMac)
✅ Linux distributions
✅ ChromeOS (Chromebooks)
✅ Android devices (using modern mobile browsers)
✅ iPhone and iPad (using Safari or supported browsers)