Educated at the Technical school of arts in 1908, he was a private pupil of the painter Eiler Sorensen from 1912-14. Jacobsen came from a humble family of Zoo keepers and was the son of Anders Jacobsen who specialised in predators - tigers, lions and panthers. Jacobsen first showed with great success at the Artists Fall exhibition, the Kunstnernes Efteraarsudstilling, in 1915. He went on to show at the Royal Art Academy in charlottenborg every year from 1919 to 1956. Jacobsen belonged to the group of the new European modernists who steered a steady stylistic course between realism and modernism. Jacobsen was strongly influenced by the popular French cubism and German expressionism movements and endeavoured to combine elements of both styles in his work. During the 1920s Jacobsen received the Bielke Scholarship, the Academy award and the Hjelmstjerne-Rosencrone prize. These awards allowed him to travel for the first time and in the mid 1920s he visited and painted in Germany and France. Later during the 1930s, Jacobsen lived in Værløse in Denmark and was associated with what became known as the ‘Værløse school’. This group of painters, led by Hans Knudsen continued the pioneering social realist and symbolist painting of the Danish master L A Ring. Jacobsen spent his later years teaching and serving as a juror at the Charlottenborg exhibitions in the 1950s. Many of his works were purchased by The Maribo Museum and the county of Værløse.