Compress PDF

Compress PDF reduces the file size of a document by re-encoding its pages as optimised images. It works best for scanned or image-heavy PDFs, and runs entirely in your browser.

⚠️ Beta tool. This runs entirely in your browser, so results may not be perfect for complex files — always double-check the output.

How to use Compress PDF

  1. Select one PDF file.
  2. Pick a quality level and resolution.
  3. Click “Compress PDF” to download the smaller file.

Is it private?

Yes. Compress PDF runs 100% inside your web browser. Your files are never uploaded to a server, so even we can’t see them. That makes it a safe choice for sensitive spreadsheets, contracts, and personal documents.

Frequently asked questions

Why does my text stop being selectable?

This tool rebuilds each page as an image to save space, so text is no longer selectable. It’s ideal for scans, less so for text documents.

How much smaller will my file get?

It depends on the file. Scanned and photo-heavy PDFs shrink the most; already-optimised PDFs may barely change.

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