Apesteguy began his career in photography in fashion and advertising as an assistant to Helmut Newton. He soon became a photojournalist in Northern Ireland and was working for Sipa Press and Daniel Angeli's agency.[2] On 27 September 1972, he got his first scoop, capturing a fire which broke out on a building on the Champs-Élysées and a woman who jumped from the building. France-Soir published the photograph in its next daily edition.[3]
In July 1977, Apesteguy joined the agency Gamma, with which he worked until December 1997.[4] In May 1978, he was sent to Chad to capture photographs of Opération Tacaud. Upon his arrival, he was arrested and his equipment was confiscated. Suspected of being a Libyan spy, he managed to escape.[5] In 1981, he was one of the main characters in the documentary Reporter [fr], directed by Raymond Depardon.[6]
In 2014, Apesteguy was one of seven French paparazzi whose photographs appeared in an exhibition at the Centre Pompidou-Metz.[7] In March 2015, he launched the Manifeste de l’indignation à l’intention des artistes créateurs et du Ministère de la Justice in support of his colleague, Marie-Laure de Decker at Gamma.[8] He lived and worked in Ézy-sur-Eure, where he was employed by Studio Hans Lucas.[9]
Apesteguy died on 30 January 2022, at the age of 69.[10]
