This package produces a Transient interface for the Python utility pagelabels.py, which allows users to manipulate PDF page labels.
For example, you can label introductory pages in a PDF copy of a book with the appropriate Roman numerals (eg, i-xvii), and label all subsequent book pages with the appropriate page numbers (eg, 1-280).
pagelabels.py is found here: https://github.com/lovasoa/pagelabels-py
This package presumes that python3 and pagelabels.py are available on your system.