Copy the document's backing file to a stream. This function copies to a stream the file from which the document was loaded or to which the document was most recently saved. Changes made to the in-memory copy of the document since it was loaded or saved will not be reflected in the copy written to the stream. This function does not have side effects on the document. This function will fail (throwing SignDocNotSupportedException) if the document has not been saved to a file since it was loaded from memory or saved to a stream.

public void copyToStream(
	Stream stream,
	bool includeUnsavedChanges
)