Adjusting printable area margins in sheetspace

I would like to know if there is a way to change the margins for the default printable area that opens in sheetspace. I have gone through video and printed tutorials explaining the Print Config manager. However, for my printer-Cannon MG5520 Pixma-I can't seem to access the margin settings from the properties box. I can access it if I choose PDF but I can't print it because I don't have a paid version of Adobe.