Ceci est une ancienne révision du document !
— ID: Q-pagebychap revised: 2014-06-10 — # Page numbering by chapter
When I was a young man, a common arrangement for loose bound technical manuals is to number pages by chapter. (It's quite a good scheme, in those situations: even if your corrections add a whole page to the chapter, the most you have to redistribute is that chapter.)
The problem, at first sight, seems pretty much the same as that in another answer on [running numbers within a chapter](FAQ-running-nos.md), and the basic technique is indeed pretty similar.
However, tidying-up loose ends, making sure the page number gets reset to the correct value at the start of each chapter, and so on, is slightly more challenging. This is why the [`chappg`](https://ctan.org/pkg/chappg) package was written: it does the obvious things, and more.
Users have been known to ask for running page numbers within a section, but this really doesn't make sense: you need to run page numbers within document objects that always start on a fresh page.