Compress a PDF on Windows
Windows has no built-in PDF compressor. This page works in Edge or Chrome without installing anything — and without uploading your file.
- 🔒 No upload
- ∞ No limits
- 🎯 Exact size
- ✓ No sign-up
Drop PDFs here or choose filesTap to choose PDFs
🔒 Compressed on your device — never uploaded · No limits · No sign-up
More options
Key facts
- Windows 10/11 can create PDFs (Microsoft Print to PDF) but cannot compress them.
- “Print to PDF” on a scanned file usually makes it bigger, not smaller.
- This tool runs in Edge, Chrome or Firefox with nothing to install.
- Install as an app from Edge (… → Apps → Install) for offline use.
How to compress a PDF on Windows
- Drag PDFs from File Explorer onto the box.
- Choose a level or an exact size.
- Download single files or a ZIP.
Desktop alternatives
Desktop suites can compress PDFs but are paid or require installation and admin rights — often not possible on office PCs. A local-processing web app gives the same privacy as desktop software without the install.
Frequently asked questions
Do I need admin rights?
No. It's a web page; nothing is installed unless you choose to add it as an app.
Are my PDFs uploaded to a server?
No. Compression runs entirely inside your browser using JavaScript and WebAssembly-grade libraries. Your file never leaves your device, so confidential documents stay private. You can even disconnect from the internet after the page loads and it keeps working.
More free PDF tools
Last updated