All tools / Edit and organise PDF
Compress PDF
Make a PDF smaller for email and uploads.
Drop files here
Accepts PDF
How to use Compress PDF
- Drop your PDF file onto the page, or choose it from your device.
- Set the options you need, then press the button to start.
- Download the result. The whole job happens in your browser; nothing is uploaded.
Good to know
Most of a PDF’s size comes from its pictures. The balanced setting re-encodes photos while leaving text and drawings sharp. For scanned documents, the maximum setting gives the smallest file by turning each page into a compact picture. You are never handed a file bigger than the one you started with.
Questions and answers
Is Compress PDF really free?
Yes. There is no charge, no account and no limit on how many files you convert.
Are my files uploaded anywhere?
No. The conversion runs inside your browser, on your own device. Your files are never sent to us or to anyone else.
Is there a file-size limit?
There is no fixed limit. Very large files depend on how much memory your device has; a computer copes with more than a phone.
Does it work without an internet connection?
Yes, once you have opened the tool while online. You can also save the whole site for offline use from the home page.