To be in PDF

Hi,

I'm using CR 11. As we need to be able to export the output (in big size) to be in PDF format, I think A3 page size can be a problem for PDF. Is it?

If yes, then we have to use A4 size in Landscape instead. But I see that landscape is not available. Should we check that from the printers?

http://www.4shared.com/photo/WqI3PwLI/fig69.html

Regards,

edward