What Does Cropping a PDF Actually Do?
Cropping a PDF adjusts the visible area of a page by changing its media box (the bounding rectangle that defines what readers and printers show). The content outside the crop boundary is hidden — not deleted — so you can always restore it later by expanding the box. This is different from editing an image: you're adjusting a viewport, not cutting pixels.
Common Reasons to Crop a PDF
The most common use case is scanned documents: scanners often add large white borders around content, making the useful area small compared to the page. Cropping tightens this up before printing or sharing. Other reasons include removing slide footers from exported PowerPoint decks, cutting a region of interest from a technical drawing, or standardising page sizes when combining PDFs with mixed margins.
How to Crop a PDF Free (No Upload)
Our browser-based crop tool lets you draw a rectangle over the area you want to keep and apply it to all pages or individual pages. Everything runs locally — your file never leaves your device.
- Drag the crop handles to fine-tune the selection before applying
- Use 'Apply to all pages' when you want uniform margins throughout
- Preview the result before downloading to catch any unexpected clipping
Step-by-Step: Crop a PDF in Your Browser
1. Open the Crop PDF tool and upload your file. 2. Draw a crop rectangle over the area you want to keep — drag any corner to resize. 3. Toggle 'Apply to all pages' if every page needs the same crop. 4. Click Apply Crop. 5. Download the cropped PDF.