Table 326 – Additional dictionary entries for structure element access

Key

Type

Value

StructParent

integer

(Required for all objects that are structural content items; PDF 1.3) The integer key of this object’s entry in the structural parent tree.

StructParents

integer

(Required for all content streams containing marked-content sequences that are structural content items; PDF 1.3) The integer key of this object’s entry in the structural parent tree.

At most one of these two entries shall be present in a given object. An object may be either a content item in its entirety or a container for marked-content sequences that are content items, but not both.