Draw and multi-page pdf?



Is it possible to output a multi-page pdf via draw using the 
terminal='pdfcairo or terminal='pdf options?

I would like to output the frames of an animation into a pdf with one 
page per graph (I don't want an animated gif, and also when I try an 
animated gif it throws an error about NIL not being a number)

as it is so far:

draw([terminal='pdfcairo,...],gr2d(),gr2d(),gr2d()...)

puts all the plots onto the same page stacked on top of each other, 
instead of on different pages, and

draw([...],gr2d(points(),points(),...)) puts all the plots into the same 
single page in the same plot (as expected).

The first option is useless as it unintelligible for a large number of 
plots (say 20 or 30) and the second option can sometimes be intelligible 
but it gets jumbled.