DocumentParentDocGuid Property

[DataMemberAttribute]
public string ParentDocGuid { get; set; }

Property Value

This Guid is used internally to keep track of parent/child document relationships.

An input document, see Documents for task input documents, can have a parent document if it was extracted from a document or container by a previous task and set as an input document by a later task. If this is the case, this property MUST be set by the user before adding the document to a DocumentTaskSettings object so that the parent/child relationship is preserved in the processing output.

Reference