Write the modified document to any writer.
Note that this allows you to write the document to a file, HTTP response or memory with full control.
Note that you cannot write more than once on the same document instance. After calling Document.Write() information in this instance can be incorrect.
For signing support you must be sure the stream is seekable. If the stream is writable only (eg Response.OutputStream) an exception will be raised.
public Void Write( BinaryWriter binaryWriter )