What column span = printable portrait page?

APEX_DOUCE

I have a static page with some form items within it.

I have a "Print to PDF" button that calls window.print() but am having some formatting difficulties with the form items on the page. When the page is put into "portrait" in print preview each form item spans the page.

I was wondering if adjusting the column span would aid in how the page looks in preview.

With that, what is the number of columns in column span that equals a printable portrait page? Is there a way to set column span, with form items, using a percentage?

I am using APEX 20.1 within a secure environment.

Thank you,

Derek