Compress PDF (reduce file size)
Shrink scanned and image-heavy PDFs, for example for email or job-application portals with an upload limit. The pages are re-rendered as optimised images – processed locally in your browser.
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🔒 Your PDFs are processed only in your browser – they are never uploaded or stored. Suitable for confidential documents too.
How to use it
- Drop your PDF into the box.
- Choose the compression level.
- Click “Compress PDF” and compare the size before and after.
Last checked: October 2026. Found a mistake? Use the form below – we fix confirmed errors and update the date.
Frequently asked questions
Why is my text no longer selectable?
To shrink the file, each page is converted into an optimised image. This works best for scans; for text-only PDFs the gain is usually small.
How small will my PDF get?
Scanned documents often shrink by 50–90%. The tool shows the exact size before and after.