I agree. Page numbers are pretty handy when wading through large documents. Actually, I prefer "Page # of Total Pages"
This is a much needed feature and would require similar functionality to the header and footer options in typical business tools (Word etc.)
The Notebook PDF export's can become more valuable by including a page number on each page.
Based on my scenario
I am using the Notebook PDF export as the formal release note. For the current release, the end result is a 13 page PDF document, in two large sections "defect fixes", and "enhancements". Each section is sorted by features related to 1 of the 6 sub-modules, for example "finance", "reporting", etc.
My client is glad to see the document, but commented they cannot use it easily.
Above all things, my client demanded a index table, to list which pages include, for example, the enhancements for the reporting sub-module.
I can manually create the index table and count the pages, but without page numbers on each page, the readers won't be able to jump to the page numbers easily.