Trim excess whitespace and margins from scanned PDFs. Set precise crop margins in mm. Completely browser-based.
or click to choose a file
Remove excessive margins from scanned documents, presentations, and academic papers. Set a custom crop box to trim whitespace from all pages at once. Ideal for making PDFs more readable on tablets and e-readers.
Crop boxes are applied in-browser — no server processing, no upload, complete privacy.
Upload the PDF with margins to trim.
Enter margin values (top, right, bottom, left) in millimeters or pixels.
See the crop area applied to a sample page.
Click Crop PDF to apply to all pages and download.
Yes — switch to per-page mode to set different crop boxes for each page.
Cropping sets a "crop box" in the PDF — the hidden content technically still exists in the file.
Most PDF viewers respect the crop box and hide cropped areas.
Yes — some PDF viewers can reveal the full page. Or re-upload your original.
Absolutely — book scans often have large gray borders that waste screen space.