He was the son of Maurice Pujo (co-founder of the Revue d'Action française alongside Charles Maurras in 1899) and Élisabeth Bernard.
[2] During the Occupation, Pujo attended the Jesuit college in Lyon, and after the Liberation, he transferred to the Collège Stanislas in Paris.
[4] From 1962 to 1966, he directed the student journal of the Restauration nationale, AF Université, and later the weekly Aspects de la France, which became L'Action française hebdo in 1992.
He authored several works chronicling the history of the Action française movement, co-founded by his father, Maurice Pujo, alongside Henri Vaugeois and Charles Maurras.
Key moments in his career included opposition to Algerian independence and his successful efforts to retain the island of Mayotte within the French national community in 1976.