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FreemiumPDF / PDF Tools / Compress PDF

Compress PDF

Shrink a PDF by re-encoding its embedded images and cleaning up its structure — all in your browser.

Click to upload or drag & drop a PDF file

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How to use Compress PDF

  1. Click the upload area and choose your file, or drag and drop it in.
  2. Compress PDF processes the file directly in your browser using client-side code — nothing is uploaded to a server.
  3. Review the result, then click Download to save it to your device.

Frequently Asked Questions

Is Compress PDF free to use?

Yes, Compress PDF is completely free, with no sign-up, watermark, or software install required.

Is my file safe when I use Compress PDF?

Yes. Compress PDF runs entirely in your browser using client-side JavaScript, so your file is never uploaded to a server or stored anywhere.

Does Compress PDF work on mobile?

Yes, Compress PDF works in any modern browser on desktop, phone, or tablet — no app needed.

Is there a file size limit for Compress PDF?

Compress PDF can comfortably handle everyday file sizes. Very large files may take a little longer since all processing happens on your own device.

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