Compress PDF
Reduce PDF file size while maintaining quality
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Max 100.0 MB per file
About Compress PDF
Our free online PDF compressor reduces file size by removing unused objects, cleaning up document metadata, and optimizing the internal structure. Choose from three compression levels: Low for minimal changes with best quality, Medium for a balanced approach, or High for maximum size reduction. All processing happens in your browser for complete privacy.
Features
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Frequently Asked Questions
Yes, our Compress PDF tool is 100% free with no file size limits, no watermarks, and no account required. You can compress as many PDFs as you need.
Upload your PDF file to our compressor, select your preferred compression level (low, medium, or high), and click compress. Your smaller PDF will be ready to download in seconds.
Our tool offers multiple compression levels so you can balance file size and quality. Low compression preserves near-original quality, while high compression achieves maximum size reduction with some quality trade-off.
Yes, your files are processed entirely in your browser and are never uploaded to any server. Your documents remain completely private and secure throughout the compression process.
Depending on the content of your PDF and the compression level chosen, you can typically reduce file sizes by 30% to 80%. Image-heavy PDFs tend to see the greatest size reductions.
Yes, text in your PDF remains sharp and readable at all compression levels. Compression primarily affects embedded images and graphics, while text content is preserved at full quality.