Punching station (300) for arranging one or more penetration elements in or through an edge portion of a relief plate precursor (P) or for arranging one or more perforations in the edge portion, comprising: a punching means (10) comprising one or more penetration elements (110) or perforating elements, said punching means being configured for arranging the one or more penetration elements or perforating elements through or in an edge portion of the relief plate precursor; an abutment means (20) aligned with the punching means and configured for forming an abutment for the edge of the relief plate precursor; a detection means (30) configured to detect at two or more locations along the abutment means whether the edge portion of the relief plate precursor is correctly positioned against the abutment means; a signalling means (40) configured to communicate a signal in function of the detection by the detection means.