A method for decorating the edges of plastic cards whose shapes are convex polygons, especially regular polygons, with rounded corners, characterised in that it comprises a complete edge decorating cycle which includes: • placing a card package in a cassette in such a way that the first uncovered edges of the cards within the particular cycle are parallel to the surface of a die, • hot foil stamping of the surface made up of the first edges of cards within the particular cycle, together with precisely one rounded corner of the package of cards adjacent to the said surface, • rotating the card package in such a way that the second uncovered edges of the cards within the particular cycle, which are basically opposite to the edges that were covered during the previous stage, are parallel to the surface of the die, • hot foil stamping of the surface made up of the second edges of cards within the particular cycle, together with precisely one rounded cornerofthe package of cards adjacent to the said edges, • separating the cards within the package through blowing air from the side of the edges that has not been foil stamped within the particular cycle, and then further complete cycles of decorating the basically opposite edges are performed so as to cover all the card edges and rounded corners, and for cards with odd numbers of edges, at least one shortened cycle is to be performed to include the following: • placing a card package in the cassette in such a way that the uncovered edges of the cards are parallel to the surface of the die, • hot foil stamping of the surface made up of these edges of cards together with precisely one rounded corner of the package of cards adjacent to the said edges, • separating the cards within the package through blowing air from the side of the edges that has not been foil stamped within the particular cycle. • placing a card package in a cassette in such a way that the first uncovered edges of the cards within the particular cycle are parallel to the surface of a die, • hot foil stamping of the surface made up of the first edges of cards within the particular cycle, together with precisely one rounded corner of the package of cards adjacent to the said surface, • rotating the card package in such a way that the second uncovered edges of the cards within the particular cycle, which are basically opposite to the edges that were covered during the previous stage, are parallel to the surface of the die, • hot foil stamping of the surface made up of the second edges of cards within the particular cycle, together with precisely one rounded cornerofthe package of cards adjacent to the said edges, • separating the cards within the package through blowing air from the side of the edges that has not been foil stamped within the particular cycle, • placing a card package in the cassette in such a way that the uncovered edges of the cards are parallel to the surface of the die, • hot foil stamping of the surface made up of these edges of cards together with precisely one rounded corner of the package of cards adjacent to the said edges, • separating the cards within the package through blowing air from the side of the edges that has not been foil stamped within the particular cycle.