Compress PDF

Shrink PDF file size in your browser — keep your text sharp, choose the strength, and download.

100% private — your files never leave your browser. Compression runs entirely on your device with no upload, no server, no watermark, and no file-size limit. It even works offline once this page has loaded.

No PDFs yet — drop or browse to get started.

Working with PDFs? Combine files with Merge PDF or split one into separate files with Split PDF — all 100% in your browser.

We use a necessary session cookie to keep you signed in, plus Google Analytics (which sets its own cookies) to understand how the site is used. We also log QR scans, including IP address, for analytics. We don't sell your data or run cross-site ad targeting. See our Privacy Policy.