Originaire de Genève où il vit et travaille actuellement. Il débute sa carrière à la revue Réalités à Paris comme assistant d'Edouard Boubat et de Jean-Philippe Charbonnier; puis il est photographe aux éditions Réalité-Hachette. De retour en Suisse, il ouvre un studio de photographie et collabore avec de nombreuses agences de publicité. Parallèlement à son travail commercial, il poursuit ses travaux de recherche photographique. Ses images ont été publiées et exposées dans de nombreux pays. Une douzaine de prix viennent couronner ses travaux.
Gérard Pétrtemand hails from Geneva, where he now lives and works. He started his career with the magazine "Réalités" in Paris, as assistant to Edouard Boubat and Jean-Philippe Charbonnier; he then went on to work as a photographer for the publisher Réalité-Hachette. On his return to Switzerland, he opened a photographic studio and worked with numerous advertising agencies. In parallel with his commercial work, he conducted photographic research. His pictures have been published and exhibited in many countries and his work has received numerous awards. "Topiques" 1998-2000 received the special jury prize in the European Photography Contest and the 2000 Swiss Press Photo award. This work was also nominated by "The Selection vfg" and "Das Magazin" in Zurich.