There are two places that I can find manpages of git and its subcommands:
https://git-scm.com/docs, and the links to all the git subcommands
https://www.kernel.org/pub/software/scm/git/docs/git.html, and the links to all the git subcommands.
Not sure if they are identical.
Is there a feasible way to download and convert the manpages of git and its subcommands into a pdf file, using software that can be installed in Ubuntu? It would be even better if the pdf file has outlines/bookmarks for the subcommands and the sections within each manpage.