Printing PDF's with multiple Page Sizes to A3 and A4

I have a pdf document with over 500 pages with different sizes. My printer can print in A3 and A4 and I need the pdf to printed in either A3 or A4 depending on the size of the page. The pages bigger than A3 should be scaled to print in fit an A3. I select the following option in the print window.

But some pages still appear as 12" x 9" and the printer prompts me to input this paper failing to continue printing. Is there a way where the software can automatically scale pages to only A3 and A4.