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Compress PDF

Reduce the file size of a PDF right in your browser.

Free foreverRuns in your browserNo sign-up
Drop a PDF here, or click to choose
Your file is processed in your browser and never uploaded.

About the Compress PDF

Make a large PDF smaller so it is easier to email, upload or store. Choose a compression level, and the tool rebuilds the PDF at a lower size.

It works by re-rendering each page as an optimised image, which is very effective for scanned documents and image-heavy PDFs. You can compare the before and after size and savings.

Everything is processed in your browser, so your PDF is never uploaded to a server.

Key features

  • Three compression levels
  • Before and after size comparison
  • Great for scanned PDFs
  • Private - runs in your browser

How to use

  1. 1Upload your PDF.
  2. 2Pick a compression level (Strong, Recommended or Light).
  3. 3Compress and download the smaller PDF.

Frequently asked questions

Will the text still be selectable?
No. Compression re-renders each page as an image, so text becomes non-selectable. This gives the biggest size reduction and is ideal for scanned or image-heavy PDFs.
How much smaller will my file be?
It depends on the content and level you choose. Image-heavy and scanned PDFs shrink the most. The tool shows the exact savings after compressing.
Is my PDF uploaded?
No. Compression is done locally in your browser, so your document stays private.