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Compress PDF

Reduce the file size of a PDF so it is easier to email or upload. Choose how strongly to compress it.

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About the Compress PDF

Reduce the file size of a PDF so it is easier to email or upload. Choose how strongly to compress it.

How to use the Compress PDF

  1. Open your PDF.
  2. Choose a Compression Level: Low (High Quality), Medium (Recommended) or High (Min size).
  3. Start the compression and download the smaller file.

When to use the Compress PDF

  • Making a PDF small enough to send by email.
  • Meeting a size limit on an upload form.
  • Saving storage space.

Common mistakes to avoid

  • Compressing too far, which blurs images and small text.
  • Compressing your only copy. Keep the original.

Tips

  • Stronger compression lowers image quality and, depending on the method, text may not stay selectable. Check the result before sending it.
  • Always keep a copy of the original file.
  • PDFs that are mostly text are already small and will not shrink much.

Frequently asked questions

Which level should I choose?
Start with Medium. Use High only if you need the smallest possible file and can accept lower quality.
Why is my PDF so large?
Usually because of high-resolution images or embedded fonts.