> I think I don't really understand the difference between "papersize"
> and "physical paper dimensions".
The logical paper dimensions within groff are set with .ll and .pl.
However, this doesn't take into account how large the `real' paper is
$(Q#|(B you can say
.ll 200c
.pl 300in
and groff is still happy. The real, physical paper size is only
relevant for the drivers.
> PS: I take it there is no easy way to "manually" set the papersize
> to X inch x Y inch? I've tried figuring out how papersize.tmac works
> but it's a little complicated for me to recognize where the "crucial
> command" takes place in the tmac.
Well, `papersize.tmac' just translates `a4' or `a5l' into proper calls
to `.ll' and `.pl', nothing else. Of course, you can ignore this
macro file completely, saying directly
.pl 21c
.ll 29.7c
.device papersize=21cm,29.7cm
Werner