A decorated panel and a process for manufacturing a decorated panel are disclosed. The decorated panel comprises a multi-layered system of linking, printing and finishing films laminated on opposite sides of a structural core formed of a fiber layer impregnated with synthetic resin. The multi-layered system of plastic films allows the creation of new optical effects which include reproduction of the same color tones under different lighting conditions, pre-arranged superimposition of complementary images, double-sided printing, a combination of translucency and opacity, as well as other graphic possibilities. These panels are used for visual communication, advertising, signs, architecture and other applications.