About this tool

Compress PDF — reduce file size, free and private

Shrink a large PDF so it fits an email or upload limit, without handing it to a third-party website. Compression runs entirely in your browser, so no document contents are sent to PaperFit.

How to compress a PDF

  1. Drop your PDF into the box above, or click to choose a file.
  2. Pick a preset (smaller size or higher quality) or set a target size.
  3. Click Compress — processing happens locally, in your browser.
  4. Download the smaller PDF. No document contents are sent to PaperFit.

What it does

  • Smart compression that protects text sharpness and image quality
  • Presets for email, web, and print, plus a custom target size
  • Works on large, multi-hundred-page documents
  • No watermark, no sign-up, no document contents sent to PaperFit

Common uses

  • Getting a PDF under an email attachment limit
  • Shrinking a scanned document for a job or visa portal
  • Reducing a report before sharing it with a client

Is it private?

Yes. Unlike most “compress PDF online” tools, PaperFit processes your file on your device, and no document contents are sent to PaperFit. The whole process happens on your own device using your browser, so a confidential contract, statement, or ID stays with you. You can confirm it: open your browser’s network tab and watch — no document contents are sent to PaperFit while you compress.

Frequently asked questions

Are my files uploaded to a server?

No. Compression runs in your browser. No document contents are sent to PaperFit, so there is nothing for us to see or store.

Will compressing reduce the quality?

PaperFit aims for the smallest size that keeps your document readable. Choose the higher-quality preset to favour sharpness, or a target size to favour a smaller file.

Is there a file size limit?

You can compress PDFs up to 200 MB. Because everything runs locally, very large files depend on your device’s available memory.

Can it ever make the file bigger?

No — if compression would not actually reduce the size, PaperFit keeps your original instead of handing back a larger file.

Do I need to install anything or sign up?

No. It works in any modern browser with no account, no extension, and no software to install.

Does it work on mobile?

Yes. It runs in mobile browsers too, though very large files are limited by phone memory.

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