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Compress PDF

Reduce PDF file size by re-rendering pages at a lower resolution and quality.

To compress a PDF, add the file and lower the quality and resolution sliders. Each page is re-rendered as a JPEG image and rebuilt into a new PDF, which shrinks scan-heavy documents substantially. Note that this converts text into images.

Runs in your browser
Method
Pages re-rendered as JPEG images
Trade-off
Text becomes non-selectable and non-searchable
Privacy
Runs entirely in your browser — nothing is uploaded
Cost
Free, unlimited, no sign-up

Frequently asked questions

Will my text still be selectable afterwards?

No. This method rasterises each page, so the text layer is lost and the result is not searchable. It is the right tool for scanned or image-heavy PDFs, and the wrong one for text documents you need to search.

Why did my file get bigger?

A text-only PDF is already very compact — far smaller than page images. If the output grew, your document is text-based and does not need this tool.

How to use the compress pdf

  1. 1Select your pdf file — the file stays on your device and is never uploaded.
  2. 2Set the jpeg quality.
  3. 3Set the resolution.
  4. 4Press Run, then download the result when it is ready.

Embed this tool

Put the working compress pdf on your own site. It runs in your visitors' browsers exactly as it does here — free, no account, nothing uploaded.

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