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Compress PDF online — free

Compress a PDF online for free to reduce its file size. It works best on scanned or image-heavy PDFs, and it keeps your original if it can't make the file smaller — all in your browser.

Processed in your browser — never uploaded

How to compress pdf

  1. 1Choose your PDF file.
  2. 2Pick a compression level.
  3. 3Download your smaller PDF.

Frequently asked questions

How do I reduce the size of a PDF?+

Upload your PDF, choose a compression level, then click Compress. You'll see how much smaller it got before you download.

Why didn't my PDF get smaller?+

Text-only PDFs are already very compact, so there's little to save. In that case we keep your original file rather than making it larger.

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