Open editor

Compress a PDF on your device

Choose Light, Balanced or Strong — or set the image resolution and quality yourself. You see the estimated size and a before/after preview before downloading.

How to use Compress PDF

  1. Open the PDF.
  2. Pick a preset or custom settings.
  3. Check the estimate and the zoomed preview.
  4. Compress & download.

When to use it

  • Email or upload portals with size limits.
  • Scanned documents saved at very high resolution.
  • Sharing presentations exported with large images.

What to expect

  • Text-only PDFs shrink little — most of a PDF's size is usually images.
  • CMYK, JPEG 2000 and some unusual image types are left as they are.
  • Very aggressive settings make scans harder to read; use the preview.

Questions

Why didn't my PDF get smaller?

If it has few or already-compressed images, there isn't much to remove. The estimate shows this before you download.