Custom Sheet size in Mac

[ean5am]

Hello,
Im doing a large sheet and I need to do the layout on A2 or A1 paper size. I have Mac computer. In the page layout I can only select A3, and custom paper sizes option is missing from Mac. I can easily print out A1 PDF, but I would like to have sheet of correct size in Excel itself.

Help please? Thanks.

 

[jkpieterse]

I *think* the choice of paper sizes is dictated by the printer driver.

 

[ean5am]

Thanks!
I would think so as well, but I have PDF printer supporting A1 and I cant see it in Excel. Changing PDF printer has no effect on sizes at all.