1. An apparatus for document identification, having: a capture device for capturing a document feature of a document; a processor designed to perform document identification locally using the document feature if a processing criterion for the local performance of document identification the apparatus for document identification is satisfied; and a transmitter designed to send a data record that is dependent on the document feature via a communication network to a communication network address if the processing criterion for the local performance of document identification by the apparatus for document identification is not satisfied.