Compress a PDF online
Reduce the file size of a PDF in your browser. Best for scanned or image-heavy PDFs; we always keep the smaller of the two. No upload, no watermark.
- Runs in your browser — files are never uploaded
- No watermark, no sign-up
- Free to use
How it works
- 1
Add your file
Drop your file into the tool. It stays in your browser, never uploaded.
- 2
Run Compress PDF
Click the button and it processes instantly on your device.
- 3
Download or share
Download the result, or turn it into a shareable link and QR code.
Best for scanned or image-heavy PDFs. We keep whichever is smaller: the compressed file or your original.