---
title: PDFDisplayBox.cropBox
framework: pdfkit
role: symbol
role_heading: Case
path: pdfkit/pdfdisplaybox/cropbox
---

# PDFDisplayBox.cropBox

A rectangle defining the boundaries of the visible region , expressed in default user-space units. Default value equal to kPDFDisplayBoxMediaBox.

## Declaration

```swift
case cropBox
```

## See Also

### Constants

- [PDFDisplayBox.mediaBox](pdfkit/pdfdisplaybox/mediabox.md)
- [PDFDisplayBox.bleedBox](pdfkit/pdfdisplaybox/bleedbox.md)
- [PDFDisplayBox.trimBox](pdfkit/pdfdisplaybox/trimbox.md)
- [PDFDisplayBox.artBox](pdfkit/pdfdisplaybox/artbox.md)