The term silhouette derives from the name of Etienne de Silhouette, a French finance minister who, in 1759, was forced by France's credit crisis during the Seven Years War to impose severe economic demands upon the French people, particularly the wealthy. Because of de Silhouette's austere economies, his name became eponymous with anything done or made cheaply and so with these outline portraits.  Prior to the advent of photography, silhouette profiles cut from black card were the cheapest way of recording a person's appearance. Always in 300 dpi ,jpeg and in high quality print. Thanks Take Your Picture