Compress PDF
Reduce your PDF size entirely in your browser. The output is a single PDF file.
Drag & drop your PDF here or
Privacy: everything runs locally in your browser. Files never leave your device.
Compress PDF fast · private · in-browser
Reduce PDF file size directly in your browser. 100% private — no upload, no signup, no tracking.
How it works
- Drop or choose your PDF file.
- Adjust DPI, JPEG quality, and grayscale settings.
- Click “Compress PDF” to shrink file size.
- Download your optimized PDF instantly.
FAQ
Is my file uploaded anywhere?
No. The compression happens locally in your browser. Your file never leaves your device.
What settings affect compression?
DPI, JPEG quality and grayscale. Lower DPI and quality → smaller file size.
What if compression doesn’t reduce size?
Then you’ll simply get back the original file. We don’t break your PDFs.
Does it work offline?
Yes. Once loaded, the tool works fully offline in your browser.
