Jean-Denis Pendanx was born in Dax in 1966. He studied graphic arts in Toulouse and later in Paris. He started his career designing covers for magazines about role playing games. His first comic album, 'Diavolo le Solennel', was written by Doug Headline and was published by Editions Zenda in 1991.
Between 1993 and 1997, Pendanx illustrated four books of the exotic fantasy series 'Labyrinthes', written by Serge Le Tendre and Dieter. During this period, Pendanx's style evolved from a Clear Line to a more nervous drawing style. Together with Alain Brézault, he made a comic adaptation of Brézault's novel 'Les Corruptibles' for Glénat (2002-04).
Pendanx moved over to Futuropolis in 2006 to make 'Abdallahi' with Christophe Dabitch. Pendanx and Dabitch continued their collaboration in 2008 with the trilogy 'Jéronimus'. When this series ended in 2011, he teamed up with Kris to create 'Svoboda!', a comic about Eastern-Europe during World War I, as well as the oneshot 'Tsunami' with Stéphane Piatzszek. Jean-Denis Pendanx has also made comic adaptations of novels for Je Bouquine and works in animation ('Corto Maltese').