PDF/A only. Gets an optional string describing the relationship of the embedded file and the containing document. This string can be a predefined value or should follow the rules for second-class names (ISO 32000-1, Annex E). Predefined values are "Source", "Data", "Alternative", "Supplement" or "Unspecified".

<void> EmbeddedFile.getRelationship(<RequestStringCallback> callback, [<ErrorCallback> errorCallback])


Parameter Description
callback Receives the property value.
errorCallback Optional. Is called when the operation failed with an error.