[1] A native of Gatineau, Quebec,[1] Nadeau studied graphic design at Université du Québec à Montréal and illustration at École supérieure des arts décoratifs in Strasbourg.

[2] In 2005, she created the illustrations for Corteo, Cirque du Soleil's international touring show.

[3] She has taught illustration at the School of Design of the Université du Québec à Montréal.

[9] Nadeau's next film was Mamie, written and directed for the French production company Folimage in co-production with the NFB.

[12] In 2023 she directed Harvey, an adaptation of the book,[13] which was a Prix Iris nominee for Best Animated Short Film at the 25th Quebec Cinema Awards in 2023.