That's exactly how we made my high-school newspaper. Then about 1987, when I was a junior, the first day of Journalism class we walked into the room and discovered our world had changed forever. There were now two Macintosh computers (one with a gigantic 20MB hard drive).
The future back then was you printed the proofs on a LaserWriter and then took those to the dark room. And maybe had a halftone screen if your school was fancy.
We'd stepped into the future.