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Compress PDF

Shrink large or image-heavy PDFs to a size that's easier to email and share.

About this tool

Shrink large or image-heavy PDFs so they're easy to email and share — without uploading them anywhere. PDFtone compresses your file locally in your browser, so the original never leaves your device.

How to compress pdf

  1. Drop your PDF into the workspace above.
  2. Choose a compression level — more compression means a smaller file, less means higher quality.
  3. Download your smaller PDF.

Common uses

  • Getting a file under an email attachment size limit.
  • Reducing a scanned, image-heavy document for upload to a portal.
  • Trimming a presentation or brochure before sharing online.

Frequently asked questions

Will compressing blur my text?

No — text stays crisp. Compression mainly reduces the size of embedded images; at higher levels photos may soften slightly, but text remains sharp.

How much smaller will my file get?

It depends on the file. Image-heavy PDFs shrink the most; PDFs that are mostly text are already small and compress less.

Are my files uploaded to compress them?

No. Compression runs in your browser, so your document stays on your device.

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