Bookbinding system, bookbinding method, and bookbinding control program.

摘要

A bookbinding system that includes: a center folding unit (215, 230) configured to perform center folding on an integrated sheet bundle; an additionally folding unit (520, 233) configured to additionally perform folding of a folded portion of the center-folded sheet bundle; a back surface forming unit (3) configured to form a back surface on the sheet bundle by pressing a front end of the folded portion of the center-folded sheet bundle and both surfaces of the sheet bundle; and a control unit configured to change the content of additionally folding according to whether to perform the back surface forming or not.