CompressPDF Free & Unlimited

100% Client-Side Privacy

Free Online PDF Compressor

Compress PDF files online and reduce their size without losing unnecessary quality. Simple, fast, and completely private.

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Max File Size: 100MB • 100% In-Browser

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Select Compression Level

Choose the balance between file size reduction and image quality.

High Compression

Smallest file size. Ideal for web sharing, email attachments, and low memory usage.

Target Savings ~ 50 - 80%

Recommended

Balanced

Optimal balance between high quality and low file size. Recommended for most documents.

Target Savings ~ 30 - 60%

Low Compression

Best visual quality. Light optimization preserving crisp images and original vector resolution.

Target Savings ~ 15 - 35%

Compressing your PDF...

Optimizing page layouts and embedded images

Processing page 1... 0%

Your PDF is compressed!

Ready for download with zero loss in essential readability.

Original Size

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Compressed Size

0.0 MB

Saved

-0%

Your files were processed securely inside your browser and are automatically cleared from memory.

100% Secure & Private

Files never leave your device. All optimization runs client-side inside your web browser, ensuring confidential data stays strictly private.

Fast Processing

Eliminates slow network uploads and downloads. Compress large PDFs in seconds using multi-threaded web APIs directly on your modern hardware.

Universal Support

Works seamlessly on Android, iOS iPhones, iPads, Mac, Windows, and Linux without requiring software installation or plugins.

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