Abstract: The invention relates to a method for decorating the sides of plastic cards by means of hot foil stamping and the die for coupling to the heating head of a hot foil stamping machine in order to carry out said method. To this end, a plurality of plastic cards is placed in the supporting cradle of the stamping machine in such a way that the first shortest side of said plastic cards faces the die, a hot foil stamping being carried out on the shortest sides of the plastic cards.