Is this PDF compressor free?

Yes. You can compress PDF files online for free in your browser with no account required.

Does compression affect file quality?

It depends on the level. Light compression keeps quality nearly intact, while strong compression reduces size more with a slight impact on images.

Are my files safe after uploading?

Files are processed only to compress them, then removed automatically. We do not share them with third parties.

Does it work on mobile?

Yes. The tool is responsive and works on modern phones and tablets (Android and iPhone).

What is the difference between compression levels?

Strong reduces size up to 65% but may lower image quality. Medium balances size and quality. Light reduces size slightly while fully preserving quality.

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Reduce PDF size while keeping quality

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What does this PDF compressor do?

It shrinks a PDF using a high, medium, or low setting, then gives you a smaller file to download in the browser. The point is to get past email and upload size caps without re-exporting from desktop software.

After you pick a file, compression levels appear before anything runs. High suits archives and quick sharing; low keeps scans and photos clearer. Upload from your device, Google Drive, or Dropbox.

Files are processed for compression only and removed automatically after a short time. If you need one packet from several documents, merge first, then compress. Details are in the privacy policy and security page.

When do you need PDF compression?

Sending a contract or quote that exceeds the email attachment limit.
Uploading to a government or university portal with a megabyte cap.
Shrinking phone scans before you archive them.

Compression level

Strong compression

Typically about 40–90% smaller — strongest squeeze; scanned PDFs can shrink dramatically; results vary.

Medium compression

Typically about 20–45% smaller — balanced quality and size; varies by content.

Light compression

Typically about 5–20% smaller — best quality; actual savings depend on the PDF.

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