Handwriting and machine writing can be used. There is no restriction on the writing method of the disabled witness certificate for veterans identification. It can be written by hand or by machine, but it needs the witness's signature and seal. Handwriting means writing on paper by hand, but it also refers to an input mode as opposed to keystroke input mode. It means that the input mode of modern tool programs has changed from keystroke input to handwriting input, and handwriting input can be transformed into ink of typed text.