Abstract: A systen for making covering masks used for the photoengraving process comprising a hard copy unit for preparing a hard copy on which negative images are printed while being enlarged to a certain magnification, a tabulator unit for inputting coordinates data which represents the outline of a predetermined image on the hard copy, a processing unit for processing the coordinates data inputted and outputting an instruction about the outline of the predetermined image which has been reduced to a value equal to the certain magnification, and a cutter-provied plotter unit for cutting the light shielding layer of a stripping film responsive to the instruction outputted from the processing unit.