Geraldo was born in Bahia state in 1929. He has a background in technical drawing. In 1956 he began attending a bookbinding workshop and a painting studio, where he made technical drawings and abstract and geometric compositions.

His expressive high points are his photographs. According to Márcia Mello, Geraldo “uses figurative elements, opting for cuts and compositions that show a search for abstraction from reality. He privileges details and the play between light and shadow. In addition to the act of photographing, he makes interventions in the laboratory, includes drawings, eliminates parts of scenes and gives expressive content to the images in response to his anxieties and questions. Some of his compositions definitively break away from the real, displaying a constructivist attitude.”

He returned to Salvador, Bahia, in 1960.