PROBLEM TO BE SOLVED: To properly control lending contents of an electronic library to a user when practically using electronic library service.;SOLUTION: This electronic library server 1 executing library lending service for lending an electronic library requested with lending from a user terminal 2 by data communication by use of a network 3 has: a library database 13 accumulating a plurality of electronic libraries that are targets of the lending service; a lending management part 164 restricting the lending contents when lending each the accumulated electronic library, according to prescribed conditions; a library editing part 165 editing a data file of the electronic library according to the restriction of the lending contents by the lending management part 164; and library transmission part 166 transmitting the data file of the edited electronic library to the user terminal.;COPYRIGHT: (C)2005,JPO&NCIPI
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