How to Remove White Margins from a Scanned PDF
Written and fact-checked by The EditPDF AI Team
Scanned documents commonly carry extra white margin or a scanner border around the actual page content, especially when the original paper did not perfectly match the scanner bed. Cropping trims this away.
Step-by-step: trim a scanned document
- 1Open editpdfai.com/pdf-cropper and upload the scanned PDF.
- 2Zoom into one representative page to see exactly where the content starts relative to the margin.
- 3Drag the crop boundary to just outside the content, leaving a small buffer so nothing is accidentally cut off.
- 4Apply the same crop to all pages if the scan was consistent, or check each page if margins vary.
When margins are inconsistent across pages
If different pages were scanned at slightly different positions, a single crop applied to every page risks cutting into content on some pages while leaving too much margin on others. Check a sample from the start, middle, and end of the document before applying one crop to everything.
Crop slightly outside the visible content rather than tight against it — this avoids accidentally clipping a letter or line that sits close to the edge on some pages but not others.
Related PDF tools and guides
PDF Cropper
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