Compress PDF Online
Reduce PDF file size for email and uploads.
Up to 25 MB per file, 5 files at a time. Sign up free for bigger files.
How to use Compress PDF
- 1
Upload PDFs
Choose the PDFs you want to shrink.
- 2
Choose a level
Recommended gives a good balance of size and quality.
- 3
Download
See the saved space and download your smaller PDF.
Frequently asked questions
How does PDF compression work?+
We re-encode large images at a sensible resolution and optimize the internal file structure. Text stays sharp.
Are my files safe?+
Yes. Files are sent over an encrypted connection, processed automatically, and permanently deleted after 1 hour (24 hours for account holders so you can re-download). Nobody looks at your files.