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Compress PDF

Reduce PDF file size in your browser. The compressor rebuilds pages with the selected profile so the level slider now changes the actual output.

Drop a PDF file here

or click to browse

We will compress it entirely in your browser

Maximum recommended file size: 100MB

Compress PDFs Without Losing Quality

Large PDF files can be a hassle to email, share, or upload. Our free, browser-based PDF compressor allows you to significantly reduce the size of your documents while maintaining readability. You have full control over the trade-off between file size and quality, and because everything runs locally on your device, your private data remains completely secure.

How to Compress a PDF

  1. Upload your file: Drag and drop the PDF you want to compress into the highlighted area.
  2. Choose a compression level: Select the level of compression that best balances file size and document quality (Light, Balanced, Strong, or Extreme).
  3. Compress the PDF: Click the 'Compress PDF' button to start optimizing your file.
  4. Download the optimized file: Once processing is complete, save your newly compressed, smaller PDF.

FAQ

It depends on the compression level you select. 'Light' and 'Balanced' modes retain excellent readability, while heavier compression might slightly soften text or images to achieve a drastically smaller file size.
No. Our compression tool runs entirely locally in your browser. Your files never leave your device.
If a PDF is already heavily optimized or contains elements that cannot be further compressed without corrupting the file, the compressor will safely keep the smallest available version to prevent unnecessary quality loss.