Compress PDF file size
Reduce PDF size for email, upload forms and sharing. Choose how much quality you can give up.
Select a file
or drop it here. On mobile, tap to choose from your phone.
Files stay private. We do not store your files. They are processed in memory and discarded as soon as your result is ready.
Free service for documents up to 400 pages or 100 MB and 5 tasks per hour.
How to compress pdf online
- Select your file or drop them on the box above.
- Set any options, then run the tool.
- Download the result. It is never stored on our servers.
Frequently asked questions
- Will compression reduce quality?
- High compression lowers image resolution the most. Low keeps near-print quality.
- What if the file cannot get smaller?
- We return the original file unchanged rather than a bigger one.