The question did not mention typesetting. Per *NIX philosophy, that would be a separate tool in a pipeline. Troff perhaps? But, this starts to look like a hi

The question did not mention typesetting. Per *NIX philosophy, that would be a separate tool in a pipeline. Troff perhaps? But, this starts to look like a hire a consultant problem where paying for expertise is more effective than learning through mistakes. Because PDF does not imply typesetting…or layout which is a third thing technically. Or “proper typesetting” which is another layer of craft. Which you might have staffed, and if so those are the people to talk to for recommendations.