Gets or sets the crop box: the region the page's contents are clipped to when displayed or printed. Inheritable.
public PdfRectangle CropBox { get; set; }
ISO 32000-2 §7.7.3.3, Table 31, and §14.11.2. Defaults to the media box; reduced to its intersection with the media box. Setting writes the page's own entry as given (reading reduces it again). A mutation.