How to crop a PDF page

Cropping hides everything outside a rectangle you choose — perfect for killing scanner shadows, wide margins, or focusing on one figure.

Crop vs delete

Cropping changes the visible page box; it does not delete the underlying content, it just stops showing it. That keeps the option to un-crop later.

Good uses

• Removing black scanner edges.
• Tightening oversized margins before printing.
• Isolating a chart to drop into a slide.

Watch the print size

Cropping changes the page dimensions, so check how it prints — a heavily cropped page may need "fit to page" when printing.