There are lots of us using OODraw with latex, to export drawings into dosuments.
We need to resize the page to fit the image when we do this. At present we have
to do this by tedious trial-and-error, typing in size numbers.  We'd like a GUI
page resize instead, that lets us drag a rectange around a crop area to resize
the page. (We normally only need to crop rather than expand in this way, you
mihgt also have to think about other uses who want a nicer way to enlarge the
canvas too.)