The ID of LEADDocument object to be used as the input of the conversion. If this value is not null, then it will be used as the input document for the conversion. The default value is null.
One input must be specified for the conversion to be successful: One of InputDocumentFileName, Document or DocumentId must not be null.
If DocumentId is set by the user, then the document converter will use Cache to load the LEADDocument object as is and will dispose it when the conversion is completed.
The converter will use DocumentFactory.LoadFromCache passing Cache and DocumentId as the parameters. Therefore, the ID must point to a valid document in the cache.