He began his comics career in the 1960s as apprentice in the local Editorial Bruguera studio, working mostly at western, war, mystery and horror series, especially for foreign publishers.

In 1972 he illustrated the series Geminis, written by Carlos Echevarría, dealing with espionage adventures set in World War I.

Though the two main protagonists' names are those of the creators of 2001: A Space Odyssey, author Arthur C. Clarke and film director Stanley Kubrick, this series' is mostly inspired by Robert Sheckley's short stories.

In 1985 Font created Jon Rohner (initially as Jann Polynesia), a comics about a seaman's wanderings inspired by tales of authors such as Jack London and Robert Louis Stevenson.

In 2004 he was one of the artists called for the revamping of Pif Gadget, appearing with the pirate comic Les Aventures de Trelawney, written by Richard Marazano.