Dover have signed former Torquay United striker Duane Ofori-Acheampong.
He scored six goals for the Gulls last season and is the second striker recruited by Dover this summer, following the arrival of Ricky Miller.
At the time of his release by Torquay, then manager Chris Hargreaves said: "He's gone through the mill. He's a fantastic lad, and we all wish him all the best in the future."
Dover begin the new National League season with a trip to Barrow.
Find all the latest football transfers on our dedicated page.