A printing support system for reducing an environmental load that changes an input load of a print operation depending on data representing the environmental load includes: an environmental load calculation basis information storage unit that stores environmental load calculation basis information used to calculate the data representing the environmental load; a print request input unit through which a print request including a print setting is input; an environmental load calculation unit that calculates the data representing the environmental load on the basis of the print request input by the print request input unit and the environmental load calculation basis information stored in the environmental load calculation basis information storage unit; a print operation input unit through which a print operation for instructing to start printing is input; and a determination unit that, when it is determined that the print operation through the print operation input unit has been input more than a predetermined condition on the basis of the data representing the environmental load calculated by the environmental load calculation unit, allows printing according to the print request input by the print request input unit.