In executing a plug-in program for extending functionality of an application, an information processing device performs a)inputting a width of a sheet, and b) executing a setting based on the input width to a predetermined program, so that the predetermined program scales an object generated by the application to a size corresponding to the input width. Further, a setting screen on which a user is able to designate a scaling process by the predetermined program, is able to be displayed by executing the predetermined program, and in the executing, the setting based on the input width is executed by the plug-in program, to the predetermined program, without displaying the setting screen by the predetermined program.