Reduce PDF File Size
Make your PDF smaller in one step.
Drop your PDF
or
PDF up to 100 MB
Stays on your device. This tool runs in your browser — nothing is uploaded.
How this works
A balanced starting point: enough reduction to make a real difference to attachment limits, without the visible softening that maximum compression causes. You can change the strength before compressing if you need to go further.
Compression runs entirely inside your browser, so your document is never uploaded and there is no waiting on a connection. You will see the exact before and after size, including when the saving turns out to be small.
Frequently asked questions
Will the text still be selectable?
Yes. Text remains real text — selectable, searchable and copyable. Compression works on document structure and image data, never by flattening pages into pictures.
Do I need to install anything?
No. It runs in your browser, with no account, no extension and no desktop application.
Are my documents uploaded anywhere?
No. The file is processed on your own device and never sent to a server.