AnyTool
Your files never leave your device. All processing happens locally in your browser.

How to crop a PDF for free?

Upload your PDF to AnyTool Crop tool, choose a preset (trim margins, top/bottom half) or set custom crop percentages, select pages, and click Crop. Download the cropped PDF — your file never leaves your browser.

  • Choose preset crop regions or set custom percentages
  • Apply to all pages or selected pages only
  • Visual preview shows crop area in real time
  • 100% client-side — no file upload to any server

What is

PDF Cropping

PDF cropping modifies the visible area of PDF pages by adjusting the CropBox property. Unlike image cropping, the original page data is preserved but viewers only display the cropped region. This is useful for removing headers, footers, and wide margins.

Document Processing

Related terms

CropBoxMediaBoxPDF MarginsPage Trimming

Detailed Explanation

Methodology

How PDF Cropping Works

AnyTool crops PDF pages by modifying the CropBox property using pdf-lib. The CropBox defines the visible region of each page without removing underlying content. Users set crop percentages for each edge (top, right, bottom, left) and apply them to all or selected pages.

  • Modifies CropBox — original page data preserved
  • Percentage-based cropping from each edge
  • Presets for margin trimming and page halves
  • Apply to all pages or individual page selection
  • Processed entirely in-browser via Web Worker
PDF Crop: AnyTool vs common alternatives
FeatureAnyTooldesktop PDF softwareCloud PDF Tool A
PriceFreePaid subscriptionFreemium
PrivacyNo uploadDesktop appServer upload
Crop presetsYesNoNo
Per-page selectionYesYesLimited
Offline supportYes (PWA)YesNo