Complex sentence: Fascist propaganda was widely present in posters and state-sponsored art. However, artists, writers and publishers were not strictly controlled; they were only censored if they were blatantly against the state.
Split into simpler sentences: Fascist propaganda was widely present in posters and state-sponsored art of the time. Art and literature in Fascist Italy were not strictly controlled, and were only censored if they were blatantly against the state.