To provide a server device and a server control program for managing circulation of a file without installing any exclusive application program in a client device.

Whether or not a user who has requested transmission of a file is a circulation candidate stored in a management file 40a is decided (S41). When the user who has requested the transmission of the file is the circulation candidate stored in the management file 40a (S41: Yes), a requested circulation file 40b is transmitted (S42), and the user name stored in the management file 40a is retrieved (S44) by referring to the management file 40a (S43). The user name and a flag A corresponding to the transmitted circulation file 40b are set, and the transmission request from the user is recorded (S45).