Represents the "CropFixed" entry of the version 1.3 opi dictionary object.

It is an optional entry defined as part of the PDF 1.0 specification.

It contains an array which contains doubles, representing PDF numeric objects.

For definitive details see:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; Table: 369, page 640.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 406, page 824.

The CropFixed entry holds the same crop region as CropRect but as floating-point values, providing sub-pixel precision for the crop boundary.