Crop PDF
Crop PDF pages by setting margin values — trim white space or focus on content. Runs entirely in your browser.
About this tool
Crop the visible area of PDF pages by setting margin values on all four sides. Enter top, bottom, left, and right margins in points (1 inch = 72 pt) — the crop box is adjusted on every page consistently. Useful for trimming excess white space, removing headers/footers, or focusing on specific content regions. Uses pdf-lib's setCropBox API entirely in your browser. No upload, no sign-up, no watermark.
How to use it
Quick steps to get the most out of this utility.
- 1
Drop your PDF
Any size up to 100 MB.
- 2
Set margin values
Top, bottom, left, right in points.
- 3
Crop & download
One click, applied to all pages.
Trim PDF page margins
Scanned documents often have large white borders, and exported reports may have unnecessary headers or footers occupying page space. Cropping sets a visible region on each page without modifying the underlying content — the cropped-out areas still exist in the file and can be restored by most PDF readers. For a permanent content removal, pair this with our Resize tool.
Why no upload matters
PDFs often contain sensitive content that should not leave your device — even for basic operations like margin trimming. Toolisk's Crop tool uses pdf-lib entirely in your browser. The file bytes never travel anywhere.
Frequently asked questions
Is this safe? Does it upload my PDF?+
No upload whatsoever. Cropping runs entirely in your browser using pdf-lib. Your PDF never leaves your device.
What is the maximum file size?+
PDFs up to 100 MB are accepted. Files over 30 MB may be slower on mobile.
Does it work offline?+
After the page has loaded once, yes — pdf-lib is cached and cropping runs locally.
Will this work on iPhone / iPad?+
Yes, on modern iOS Safari.
How is crop different from resize?+
Crop adjusts the visible area of each page without changing content size — like trimming photo edges. Resize changes the page dimensions and optionally scales content.
Can I undo a crop?+
Crop sets the CropBox — most PDF readers respect it, but the original content outside the crop region still exists in the file. For a permanent trim, use our Resize tool.
What units are the margins in?+
Points (pt). 1 inch = 72 pt, 1 cm ≈ 28.35 pt.
Keep exploring
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