Crop a PDF: remove white space and margins
1 min read·23 July 2026
Large margins or empty borders in a PDF are annoying when printing or presenting. With PDFrust you crop your PDF pages or automatically remove white space — free, without upload.
Why crop a PDF?
Scanned documents often have wide empty borders because of how the original was positioned on the scanner. Presentations saved as PDF sometimes have unnecessary white space around the slides. Cropping makes the content larger and more readable.
Manual cropping with the crop tool
With the crop tool you drag the desired crop rectangle on each page individually. You decide yourself how much to cut from the left, right, top and bottom. This works well when you know exactly which part you want to keep.
Crop PDF
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Automatically remove white space
The trim margins tool analyses each page and automatically trims the white borders. Ideal for scanned documents where the white space varies per page. A small padding is preserved so content does not run to the edge.
What is the difference with adding margins?
Cropping removes existing space; adding margins adds extra space around the page. For printing you often want to keep a small margin; for screen viewing or presentations cropping is more useful.
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