Hector Saunier, painter and printmaker, was born on 21 February 1936 in Buenos Aires, Argentina. After completion of his architectural studies, Saunier departed Argentina for Europe in 1961. He worked for a time in England creating jewelry and metal accessories for the theatre; however, by 1966, he was living in Paris and working at Stanley William Hayter's experimental workshop Atelier 17. Atelier 17 was the powerhouse of creative intaglio printmaking of the twentieth century since its establishment in the late 1920s. Saunier learnt his craft primarily from Hayter and became an assistant at the atelier, working closely with Hayter for the next twenty years. In 1978 he became associate director of the atelier and printed many of Hayter’s later intaglios. On Hayter’s death in 1988, Saunier became co-director with Juan Valladares and the atelier was renamed Atelier Contrepoint, which still flourishes at 10 rue Didot in Paris. Hayter once said of Saunier's prints, “His research in the use of colour in total saturation, the interpenetration of graduated fields of colour not only creates a space of the imagination beyond our normal experience but involves us in another dimension of the consciousness of colour in itself—making us aware of the unsuspected amplitude of one of the most joyful aspects of life.”

Saunier's work has been included in numerous exhibitions in London, Paris, Buenos Aires, Washington, Rome, Luxembourg, San Paulo, Osaka, Bordeaux, Bogota, and Toronto. Hector Saunier is represented in the collections of the Rijksmuseum and the Stedelijk Museum, Amsterdam; the Bibliothèque Royale, Brussels; the Baltimore Museum of Art, Maryland; the Museo del Grabado, Buenos Aires; the Indianapolis Museum of Art, Indiana; the Musée National d’Istanbul; the British Museum, London; the Chazen Museum of Art, University of Wisconsin, Madison; St. John's College, Oxford, England; the Bibliothèque nationale de France, and the Musée d’Art Moderne de la Ville de Paris; the Albertina Museum, Vienna; and the National Gallery of Art, Washington, D.C.

Hector Saunier died in Paris on February 25, 2024.