How much can I compress a PDF file?

Compression rates vary depending on the content and compression level chosen. Typically, you can achieve 5-20% size reduction while maintaining good quality.

Will compressing affect PDF quality?

Our compression algorithm is designed to minimize quality loss. You can choose from low, medium, or high compression levels based on your quality vs. size preferences.

Is it safe to compress PDFs online?

Yes, our PDF compressor is completely safe. All processing happens locally in your browser - your files never leave your device.

Free PDF Compressor - Reduce File Size Online

Reduce PDF file sizes while maintaining quality. Choose your compression level and get smaller files perfect for sharing. All processing happens in your browser.

Compress PDF Files

Reduce PDF file size efficiently.

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Drop PDF file here to compress

or click to select a PDF file

Choose Compression Level

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Original Size: --

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Low Compression

Preserve maximum quality

Expected reduction: 1-3%

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Medium Compression

Recommended

Best balance of quality and size

Expected reduction: 3-8%

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High Compression

Maximum size reduction

Expected reduction: 8-20%

Why Choose Our PDF Compressor?

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100% Secure

Files stay on your device.

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Smart Size Reduction

Optimize file size without losing quality.

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Completely Free

No limits or registration required.

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Lightning Fast

Instant compression in your browser.

How to Compress PDFs

Upload PDF

Drop or select your PDF file.

Choose Level

Select compression quality.

Download

Get your compressed PDF.

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