Are my confidential documents uploaded to a server?

No! The entire compression process runs locally inside your browser memory using HTML5 Canvas and WebAssembly.

PDF Compressor

Compress PDF files online to reduce file size with Extreme, Recommended, and Light compression levels.

Your files are processed in your browser and are not uploaded to our server.

Reduce PDF file size while maintaining readability. 100% private in-browser compression without uploading files to external servers.

Drag and drop or select the PDF file you want to compress.

Choose Extreme (~75% reduction), Recommended (~50%), or Light (~25%).

Compare original vs compressed size and download your optimized document.

3 Intelligent compression presets: Extreme, Recommended, and Light

Side-by-side file size comparison and percentage savings metrics

Page 1 visual compression preview

100% Client-side execution — documents never leave your computer

Everything you need to know about this tool and data privacy.

Our Recommended compression level maintains crisp typography and text readability while optimizing heavy embedded images.

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