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Compress PDF

Reduce PDF file size by up to 90% — free online

Compression level

Reduces size 40–70%. Best for most documents.

Drop your PDF here or click to browse

PDF files only · Max 50MB free

Browser-based, files never uploaded Instant results Works on any device

How to use Compress PDF

  1. 1Upload your PDF
  2. 2Choose compression level (low, medium, high)
  3. 3Click Compress PDF
  4. 4Download your smaller PDF

About this tool

Compress PDF files online for free. Reduce PDF size by up to 90% while maintaining quality. No installation needed — works in your browser.

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Frequently asked questions

How much can I compress a PDF?

Up to 90% for image-heavy PDFs. Text-only PDFs typically reduce 20–40%.

Is my PDF secure?

Yes — all processing happens in your browser. Files are never uploaded to servers.

What is the file size limit?

Free users can compress PDFs up to 50MB. Pro users have no limit.