This property represents the parameters that characterize this device independent color space.

It is defined as part of the PDF 1.1 specification.

A CalGrayColorSpaceAttributesElement.

For definitive details see:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; page 145.

The Attributes entry references the CalGray color space attributes dictionary that carries the calibration parameters: white point, optional black point, and gamma. These three values fully define the mapping from encoded gray to CIE Y.