How do I change the default margins on my Macbook Air?

This is making me insane. I need to print a booklet PDF in actual size, but my macbook adds margins no matter what I do, whether it's booklet printing or any other thing, even if I check "actual size."

The top is half inch, and the sides and bottom are all quarter inch, which totally messes my booklet up and makes the print too small, because margins are already accounted for in the actual size of the PDF.

Printing the same document from my husbands lenovo with the same settings yields different margins, so that's how I know it's my macbook.

Last time I had to fiddle with the margins was two years ago and it took me 3 hours of every google search under the sun. It was so convoluted I'll never remember how to do it but I can't seem to duplicate my google search rampage that got me there either.

Why is apple so blasted frustrating?!?!?