Free PDF Tool
Crop PDF
Remove Margins Free & Instantly
Remove white margins, scanner borders, and unwanted whitespace from every page of your PDF. Enter the amount to trim from each edge in millimetres, drop your file, and download the cropped PDF instantly. Works entirely in your browser — no upload, no signup required.
Margins to Remove
Cropping hides content — it does not permanently delete it. The original page content remains embedded in the file.
Drag & drop your PDF here
Margins above will be cropped on every page
File never leaves your device
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Common Uses
📚 Scanned Books
Remove black scanner borders and gutter shadows from every page of scanned books.
📄 Academic Papers
Trim oversized margins from research papers to fit better on screen or e-readers.
📱 E-Reader Optimisation
Crop white margins to maximise text area on Kindle, Kobo, and other e-readers.
🖨️ Scanner Shadow Removal
Remove dark border artifacts that flatbed scanners add around scanned documents.
Frequently Asked Questions
Does cropping permanently delete page content?
No. Cropping sets a crop box that hides the outer area in PDF viewers, but the original content is still in the file. It is visual trimming, not data deletion.
Does it work for both A4 and Letter sized PDFs?
Yes — margins are entered in millimetres and applied proportionally, so it works with any page size including A4 (210×297mm) and US Letter (216×279mm).
Can I crop different amounts on different pages?
Not in this version — the same margins are applied to all pages. For per-page cropping, use a desktop PDF editor like Adobe Acrobat or PDF Expert.
Will the file size decrease after cropping?
Usually not significantly — because the original page content is preserved, just hidden. Cropping mainly affects the visible area, not the embedded data.
Is my PDF sent to any server?
Never. Cropping runs entirely in your browser using WebAssembly. Your file never leaves your device.