Add "Page Numbers" in "PageFooters" calling DocumentNotebook[]?

I’m using DocumentNotebook[] to automate the generation and printing of a notebook to PDF.

I would like to user customer headers and footers, but when I specify “PageFooters” as an option to DocumentNotebook[].

Looking through the documentation I have learned that I probably need to include a cell in the the PageFooter. And, that cell likely needs to include either CurrentValue[] or a dynamic expression of some sort that calculates the current page.

But, googling for words like “page” brings back more noise than I can handle.

I’d very much appreciate any help you can provide.

Thanks, and have a great and safe day.