Will compression reduce quality?

Low compression keeps quality very high. High compression reduces quality slightly but gives the smallest file size.

Is PDF compression free?

Yes, completely free with no limits.

Your files never leave your device. All processing happens in the browser.

Compress PDF

Reduce your PDF file size instantly. Choose your compression level and download in seconds.

or drop a PDF anywhere on the page

Your file

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Compression level

Low

Better quality, smaller reduction

~30% smaller

Medium

Balanced quality and size

~50% smaller

High

Maximum compression

~70% smaller

Compressed successfully!

Original

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→

Compressed

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Saved —

Frequently Asked Questions

Yes, completely free. No sign-up, no limits, no hidden charges.

It depends on the compression level you choose. Low compression keeps quality very high with a smaller reduction. High compression gives the smallest file size with a slight quality reduction.

Absolutely. Your files never leave your device. All processing happens locally in your browser.

Some PDFs are already highly optimized. In that case the tool will show "File already optimized" and the size difference will be minimal.

Yes, the tool works on any device including smartphones and tablets.