The in-register arrangement of at least two printing plates on at least two plate cylinders of a printing press, with respect to each other, is accomplished. Settings for a temperature of a printing plate, which is arranged on one of the plate cylinders or of a cylinder barrel of the plate cylinder or of a temperature control assembly, which interacts with the printing plate or the at least one printing cylinder, are determined depending on a printing image which is printed onto a printing material. One temperature of the printing plate or of the cylinder barrel or of the temperature control assembly is changed according to the settings in such a way that subsequently, an image form element, which is arranged on the printing plate, and an image form element, which is arranged on another of the printing plates, are situated in a predefined relative position with respect to one another, at least in an axial direction relating to a plate cylinder. The printing press has a press unit which has a transfer cylinder
