A print data editing apparatus for creating and editing print data to be printed on a print unit, comprising: a display that displays inputted data composed of characters, graphics, images, tables or drawing data as an object that is a print object to be printed on the print unit; a work area provided in the display for editing the object; a database storage device that stores a database as an assembly of a plurality of the inputted data having information of each item; a database display area provided in the display that displays at least items of the database; a linking element that links an item of the database displayed in the database display area with the object displayed in the work area, characterized by a link display controller that controls displaying a link relationship between the database item and the object linked by the linking element on the display so that the linkage is capable of being recognized, with a link line (301, 302, 303, 304, 305; 311) that connects the object and the database item linked with each other, a link changing element that changes the link relationship by changing the database item or the object connected to an appropriate end portion of the link line (301, 302, 303, 304, 305; 311), wherein the link changing element changes the link relationship by dragging and dropping the appropriate end (312, 313) of the link line (301, 302, 303, 304, 305; 311) and that said work area and said database display area are provided in the display together; and wherein upon changing the link relationship by dragging and dropping, a content of the object is updated with a content of the database item to reflect the changed link relationship with the database item. a display that displays inputted data composed of characters, graphics, images, tables or drawing data as an object that is a print object to be printed on the print unit; a work area provided in the display for editing the object; a database storage device that stores a database as an assembly of a plurality of the inputted data having information of each item; a database display area provided in the display that displays at least items of the database; a linking element that links an item of the database displayed in the database display area with the object displayed in the work area, a link display controller that controls displaying a link relationship between the database item and the object linked by the linking element on the display so that the linkage is capable of being recognized, with a link line (301, 302, 303, 304, 305; 311) that connects the object and the database item linked with each other, a link changing element that changes the link relationship by changing the database item or the object connected to an appropriate end portion of the link line (301, 302, 303, 304, 305; 311), wherein the link changing element changes the link relationship by dragging and dropping the appropriate end (312, 313) of the link line (301, 302, 303, 304, 305; 311) and that said work area and said database display area are provided in the display together; and wherein upon changing the link relationship by dragging and dropping, a content of the object is updated with a content of the database item to reflect the changed link relationship with the database item.