How do you maximise your publications to print right to the edge of the paper on publisher ?

im trying to print a birthday card i made on microsoft publisher and even though in the publication i made it perfectly to the edges of and a4 landscape page when i go to print it theres a 3 inch border of blank space around it and i want it fully a4, its so stupid and ive been on advanced settings and set it to borderless so its suppose to print right to the edge but publisher still thinks its got a boarder please help :) cheers