How to Crop a PDF and Trim Unwanted Margins
Wide white margins, a stray header, or scanner shadows around the edge of a page make a document look unpolished. Cropping a PDF trims that excess away so every page is clean and focused on the content that matters.
Good reasons to crop
- Removing big margins to make text larger and more readable on small screens.
- Cutting scanner artefacts — black borders or shadows around a scanned page.
- Standardising a document where pages came from different sources at different sizes.
- Focusing attention on a single chart or figure.
Crop the view, not the data
Cropping in a PDF hides the area outside the crop box rather than deleting it destructively, which means the operation is reversible and never re-renders your text — there is no loss of sharpness. You are simply telling the page where its visible boundary sits.
How to crop
- Open the Crop PDF tool and upload your document.
- Set the crop area, applying it to one page or the whole file.
- Click Process and download the trimmed PDF.
Finishing the cleanup
Cropping pairs well with the Rotate tool for fixing sideways scans, and with Compress if a batch of scanned pages has left you with a large file.