Represents the "Action" entry of the fieldmdp transform parameters dictionary object.

It is a required entry defined as part of the PDF 1.0 specification.

It contains a string representing a PDF name object.

This item may take one of the following valid values:.

• All
• Include
• Exclude

For definitive details see:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; Table: 256, page 473.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 259, page 573.