The Bundesliga outfit confirmed the deal for the 28-year-old, who has played for Spanish clubs Elche and Real Sociedad, in a statement released on its official website.
Jonathas said he was "pleased" with joining Hannover, adding that he aimed to have a successful career at the German club and to help his new teammates, reports Efe.
Hannover's sporting director, Horst Heldt, praised the Brazilian striker and highlighted his talent and skills.
Jonathas is set to start training on Tuesday.
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
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