An electronic settlement support system, issuing electronic check paper where data are difficult to be falsified by signature. An information processor (10) can be connected to a private network (6) established with Internet (5) and transmits and receives information between a computer of an administrative agency and the other information processor on private Network (6). A display control part (103) displays blank electronic check paper on a display part (13). A linear picture overlap means (104) sets a trace of depression to a touch panel (14), an amount and a signature by handwriting, for example, to be a linear picture, and has it overlapped with electronic check paper. Filled-out electronic check paper is printed out and is directly handed over to a recipient, or is transferred to the information processor of the recipient and printed out. A copy of electronic check paper is sent to the computer of the administrative agency and is kept.