Exported PDF will not print to different size paper (layout in ARCH D trying to print on 11x17)

i have used the ARCH D paper size in the layout program and i am trying to print 11x17 after I export to PDF. Is this a printer issue or is there something I am missing in the export.

Probably something to do with the printer settings in whatever it is you are opening the PDF file.

In Adobe Acrobat or Adobe Viewer you must select 11x17 as the page size in Page Setup, and select Shrink to Fit in the page scaling options.