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Compress PDF

Reduce PDF file size by recompressing pages. Preview first, then download.

Drop a PDF here or click to choose One PDF file to compress

About Compress PDF

Large PDFs fail email limits and slow down form uploads. Compress PDF recompresses pages so the file gets smaller while staying readable for typical office and school use.

Photo-heavy scans shrink the most. Text-heavy PDFs may shrink less—that is expected. Always preview before you send the smaller file.

How to use Compress PDF

  1. Open Compress PDF.
  2. Upload one PDF.
  3. Run compression and review the preview.
  4. Download the smaller PDF.

When to use it

Practical tips

Common questions

Will text stay readable?

For normal office PDFs, yes. Extremely aggressive size cuts on photo scans can soften fine detail—preview first.

Is compression free?

Yes. Free in your browser with no account.

Can I compress password-protected PDFs?

Remove or unlock protection in a PDF reader first, then compress.

How much smaller will it get?

Results vary. Image-heavy PDFs shrink more than simple text PDFs.

Related guides

Related tools

Merge PDF Combine multiple PDF files into one PDF. Preview pages, then download. Split PDF Split a PDF into separate pages or extract a page range. Preview pages first. Compress Image Reduce image file size by quality or a target KB/MB size. Keeps the full image. No objects are removed.