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Compress PDF

Reduce the file size of your PDF documents without losing quality. Optimize PDFs for sharing. Processed entirely in your browser — your files never leave your device.

How to compress a PDF

  1. Drag and drop your PDF file into the box above, or click to browse.
  2. Click "Compress PDF" to reduce the file size.
  3. Your compressed PDF will download automatically with a size comparison shown.

Will compression reduce quality?

No. The compression strips unnecessary metadata and optimizes the internal structure of the PDF. The visual content and text remain identical.

How much smaller will my PDF be?

Results vary depending on the original file. PDFs with lots of metadata or inefficient internal structures will see the biggest reductions. Already-optimized files may not shrink much further.

Is it secure?

Yes. All processing happens directly in your browser using client-side JavaScript. Your files are never uploaded to any server.