Abstract: A method of decorating by pad printing for applying a decorative pattern (2) on the wall (3) of a previously-shaped part (4) to be decorated, such as a glass bottle, including a preparation step a) during which a liquid marker substance (5) of any viscosity is deposited in the imprint (11, 111) of a pad-die (10, 110) that is marked by an indentation of shape that is substantially complementary to the shape of the existing wall (3) of the part (4) to be decorated, which substance may be an ink or an enamel, and then a marking step b) during which the pad-die (10, 110) is moved towards the part (4) so as to bring the wall (3) of the part into contact with the bottom of the imprint (11, 111), so as to deposit the decorative pattern (2) on the wall (3) by transferring the marking substance (5) from the imprint onto the wall for decorating and marking objects.