1. A processing condition selecting apparatus for selecting a single signal processing condition from a plurality of signal processing conditions representing different dot distribution characteristics, and instructing an image forming apparatus, which is capable of producing a print by forming an image on a recording medium, to carry out a halftone process depending on the selected signal processing condition, comprising: an image forming information acquirer for acquiring image forming information with respect to the print; a production aptitude evaluator for evaluating a production aptitude of the print under the signal processing condition, based on the image forming information acquired by the image forming information acquirer and prescribed evaluation criteria; and a display image generator for generating a display image visually representing the production aptitude of the print that has been evaluated by the production aptitude evaluator.