Crop PDF
Cut away wide white margins, scanner borders or headers and footers by setting how many millimetres to trim from each side — on every page or only on the pages you choose.
Runs in your browser
How to use
- Drop a PDF.
- Enter the margins to remove (top, bottom, left, right) in mm.
- Optionally limit to certain pages.
- Click Crop PDF and download.
How it works
The tool sets each page's crop box and media box to the smaller area, which is how PDF viewers and printers know what part of the page to show. Content outside the new box is hidden rather than deleted, so text and images inside keep full quality.
Files are processed in your browser with the open-source pdf-lib and pdf.js libraries — they are never uploaded.
Examples
- E-reader
- Trim 15 mm from each side of an academic paper to make it readable on a small tablet.
Common uses
- Reading PDFs on phones and e-readers
- Removing scanner borders
- Preparing pages for printing
Privacy & security
This tool runs entirely in your browser. Your files and text are never uploaded to our servers — processing happens on your device and results are created locally. How each tool handles files
Frequently asked questions
Is the cropped content deleted?
It is hidden by the new page boxes. Don't rely on cropping to remove confidential information.
What's 1 mm in PDF points?
About 2.83 points (1 inch = 72 points = 25.4 mm).
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