Arch Linux, xfce4-screenshooter 1.9.3-1. The man page ends SEE ALSO The full documentation for xfce4-screenshooter is maintained as a Texinfo manual. I much prefer man pages, but when I went looking for any extra detail in the info page it wasn't part of the package, nor did I find it in the xfce.org git tree. Perhaps that's an out of date reference that should be removed?
Thanks for reporting, indeed the man pages included this information because I forgot to pass --no-info to help2man. In order to not forget to run help2man on every release, I update the autotools set up to run it automatically if available: https://git.xfce.org/apps/xfce4-screenshooter/commit/?id=29efab3120eb6a56aaa4c8ae0fb93b8432074e10