In the case where an attribute of a general-purpose file to be processed is an attribute inhibiting printing, an MFP selects a transmission function, which is one of output functions of the MFP, as a function that can be performed (selected) in response to an output instruction, and displays a screen for transmission. In the case of an attribute permitting a document assembly function, the MFP determines that a bind function is a function that can be performed (selected), and displays a screen for the function. In the case of an attribute inhibiting the document assembly function, the MFP determines that a function of adding information to a file, which is one of the output functions of the MFP that does not implement the document assembly function, is a function that can be performed (selected), and displays a screen for the function.