A suction table, especially for an exposure station of an apparatus for producing offset plates, and including an upper suction plate with a plurality of openings, which communicate with a suction means so as to firmly attract an offset plate placed on the suction plate during the exposure. The suction table includes furthermore a conveyor causing an offset plate placed on the suction tabe to move along the upper surface of the suction table, a guide member placed at the upper surface of the suction plate and including a guide surface, which forms an acute angle, preferably an angle of less than 45.degree., with the moving direction of the conveyor means, and an end stop for the front edge of the plate when seen in the moving direction.