How to Crop a PDF and Trim Margins

Scanned pages with huge white borders, a slide deck ringed with empty space, or a document with margins so wide the text is a tiny island in the middle — cropping trims the visible page area so your content fills the page. It's the difference between a cramped, wasteful layout and a clean, readable one.

Why crop a PDF

• Remove scanner margins — cut the thick white borders scanners add.
• Focus on the content — trim empty space so text and images sit larger.
• Fix odd page sizes — tidy pages that were exported at the wrong dimensions.
• Better on small screens — a tightly cropped page is far more readable on a phone.

Cropping vs resizing — they're different

Cropping changes the visible area of the page — it hides the margins by shrinking the page boundary, without scaling the content. Resizing scales the whole page up or down to a new dimension (like A4 → Letter). If your problem is wasted white space, you want to crop. If you need a specific paper size, you want to resize with the PDF Resize tool.

Step-by-step: crop a PDF with ToolsGravity

1. Open the PDF Crop tool and upload your PDF.
2. Set how much to trim from each edge, or drag the crop box to the area you want to keep.
3. Apply the crop and download the trimmed PDF.

Common cropping scenarios

Tips

• Leave a little breathing room. Crop right up to the text and it looks cramped; a small margin keeps it readable.
• Check every page. If page content shifts around, a single crop box may clip some pages — review before sharing.
• Crop, then compress. After cropping a scanned PDF, run it through the PDF Compressor to shrink the file further.

Summary

Cropping trims wasted margins so your content fills the page — cleaner, more readable, and often smaller. Remember it changes the visible area, not the scale (use resize for paper sizes). Leave a little margin, check each page, and use the ToolsGravity PDF Crop tool right in your browser.