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Crop PDF

Crop PDF pages by setting custom margins. Remove headers, footers, or whitespace. Browser-based, free.

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What is Crop PDF?

Crop PDF pages by setting precise margins — remove headers, footers, excessive whitespace, or any unwanted border area. This free browser-based tool lets you set crop margins in millimeters, inches, or points with a live visual preview. All processing happens in your browser using pdf-lib.

Why use this tool?

Visual preview with red overlay shows exactly what will be cropped. Supports millimeter, inch, and point units. Quick presets for common crops (10mm, 20mm, remove headers). Applies crop to all pages at once. 100% browser-based — your PDFs never leave your device.

Common use cases

Use this tool when you need to remove page headers or footers from a PDF, trim excessive margins or whitespace, crop scanned documents to content area, prepare PDFs for printing with custom margins, or standardize page margins across a multi-page document.

How to use Crop PDF

  1. 1Upload your PDF file
  2. 2Set crop margins for top, right, bottom, and left sides
  3. 3Use the unit selector to work in mm, inches, or points
  4. 4Preview the crop overlay on each page (red shading shows removed area)
  5. 5Click "Crop & Download PDF" to get your cropped file

Frequently asked questions

Does cropping permanently remove content?

The tool sets the PDF CropBox, which defines the visible area. The original content is still in the file but hidden. Some PDF viewers allow resetting the crop box to reveal the full page.

Can I crop different margins on different pages?

Currently the same margins are applied to all pages. For per-page cropping, you can split the PDF first, crop each section separately, then merge them back.

What units can I use for margins?

You can set margins in millimeters (mm), inches (in), or points (pt). 1 inch = 72 points = 25.4 mm. The unit selector lets you switch between them instantly.

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