Posters have been available and in use for marketing purposes ever since the first printing press. Initially, they contain texts, that were used to inform the public of upcoming events, news, announcements, etc. when newspapers were not yet available. These days, posters are made to catch the eyes of the intended audience. With visual design, colors, different types, and images, you can print posters in different sizes and shapes. In light of that, our free resource for you today is a free landscape and portrait A4 PSD poster mockup shared by Mokhtar Abaza.