Landscape for PDF

Hello,

I want to create a landscape template. But when I export to PDF document comes out as portrait. I can arrange when I print but I cannot save as PDF from print option.

I’ve been working on a sheet that converted from excel and even though I’ve been deleting the empty columns etc PDF was turning all of them into pages. So I’ve decided to create the template out of scratch. I have to take PDFs from every document. This is killing me.

How can I arrange my sheet as to be seen as landscape İn PDF?

Thanks