Represents the "Resources" entry of the form XObject dictionary object.

It is defined as part of the PDF 1.2 specification.

It contains a ResourceElement.

For definitive details see:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; Table: 95, page 218.

Adobe Supplement to the ISO 32000, BaseVersion: 1.7, ExtensionLevel: 3; Table: 4.45, page 27.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 93, page 269.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; Table: 363, page 632.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 399, page 812.

The Resources dictionary holds all objects needed by the form's content stream. A form's resources are self-contained; the form does not inherit resources from the enclosing page unless they are explicitly referenced via the page's resource dictionary.