Compress PDF Free Online

Reduce your PDF file size instantly — right in your browser. No uploads, no accounts, completely private.

Drop your PDF here or browse

PDF files only

How to Compress a PDF

  1. 1 Drop or select your PDF file above.
  2. 2 Choose your compression level using the slider.
  3. 3 Click "Compress PDF" and wait a moment.
  4. 4 Download your smaller PDF — no account needed!

Our free online PDF compressor reduces your PDF file size by stripping redundant metadata and applying object stream compression — all directly in your browser without uploading anything to a server. It's ideal for shrinking large PDFs before emailing, uploading, or archiving. Use the quality slider to balance file size against visual fidelity of embedded images. The tool is 100% free, requires no account, and works on any device with a modern browser.