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on-device pdf workspace

Compress PDF

Shrink file size by re-rendering pages at a lower resolution.

PDF on-device

Drop a file here

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single file
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60%
Private by design. Compress PDF processes your PDF locally in this tab. Nothing is sent anywhere.

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About Compress PDF

Yes. Compress PDF is free with no account required. Because it runs on your device there are no server costs to pass on.
No. Your PDF files are read and processed inside this browser tab. They are never transmitted to a server.
After the page has loaded once, the tools keep working without a connection — there is no backend to reach.