Zaharia, after settling in the Hungarian capital Buda, worked as a typographer and helped popularize books in the Romanian language.
Opening a bookstore, he edited books in Romanian with the help of the university press; these were written by authors from Transylvania as well as from the Danubian Principalities.
In 1821, the oldest Romanian-language literary magazine, Biblioteca românească ("The Romanian Library"), appeared under his name in Buda.
This publication, which he sought to shape into an encyclopedia, included history, literature, cultural advertising, popular science, sundry information, practical advice and miscellanea.
He benefited from the assistance of Emanuil Gojdu, a patron of Romanian publishing houses in Buda.