How to set a Mathematica notebook to save as PDF in A4 paper size?

[mmamathes (Bill Blair)]

How to set a Mathematica notebook to save as PDF in A4 paper size?

After finishing a Mathematica notebook, how do I ensure it is saved as a PDF with A4 paper size? How do I set this up?

[mroge02 (Michael Rogers)]

Perhaps one of these Mma.SE posts can help:

• https://mathematica.stackexchange.com/questions/5925/how-to-control-the-page-size-when-exporting-as-a-pdf
• https://mathematica.stackexchange.com/questions/95945/exporting-pdf-with-large-papersize
• https://mathematica.stackexchange.com/questions/219187/printing-several-a4-pages-in-pdf