Paderborn officially announced that the German attacker Heller freely transferred to join the team.
Heller left Darmstadt this summer and after agreeing to join, he signed a one-year contract with Paderborn.
Heller will wear the No. 24 jersey in Paderborn and he will follow the team in the Bundesliga.
This year, the 34-year-old Heller has played for Frankfurt, Duisburg, Dynamo Dresden, Aachen and Augsburg.
Heller has played 123 times in the Bundesliga and scored 11 goals. He returned to Darmstadt from Augsburg in the summer of 2018. His transfer fee was 350,000 euros.