How to to change paper size using a from a Mac
Our printers only use A4 size paper but, unfortunately, some of the software package default to ‘letter’ size
THIS MEANS THAT YOU WON’T BE ABLE TO PRINT UNTIL YOU CHANGE THE PAGE SIZE.
Go to File
Go down to Page Setup
Choose the Paper Size arrows and select A4.
Now, print normally: that is: Go to File
Go down to Print