exportNotebook is totally broken in landscape mode (for PDF)

[trou]

Hello,
I've just used the rM to annotate a landscape PDF (size 453.54 x 255.12 pts), and exportNotebook does not handle the case at all.
I've tried to hack it into supporting it but for some reason I can't get the translate to work.

However, I've stumbled upon https://github.com/tavinus/pdfScale/ which seems to have everything we need (almost, I could not get the automatic translate to work).

I'll see if I manage to do something, but don't count on it :)

[trou]

I've pushed a hack here: https://github.com/trou/maxio/tree/landscape

[mseri]

It would be quite easy to add a similar fix in #22
If it gets approved or reviewed, I'll update the PR to add it