InsertUser,
Thanks for this hint! I found a company called InkAtlas on that wiki, which offers exactly what I’m trying to do. They allow a free download of a map that’s 6 PDF pages in size – what is in those pages depends on the map scale. For what I want, a 1:20,000 scale PDF will need about 15 pages, which exceeds their free limit but is priced very affordably.
The InkAtlas web page allows extensive variation of scale and other options, and as long as the size does not exceed 6 pages it’s free. I’ve been able to fine tune the results and am very pleased.
I probably never would have found this without your suggestion, so this is the “answer” to my original post. Unfortunately, the forum won’t let me log in (I’m getting an invalid gateway error) or I would mark this as the solution.
Thanks again.