My gradient background is disappearing when converting it to a pdf
So I made a design in Adobe illustrator and I'm working on a mac, I was trying to save it as a PDF but everytime I hit save as pdf it just gets rid of my gradient background. I have looked through some other posts but all fixes don't work or I am not fully understanding the steps. I'm a graphic design student at a highschool and just need some help so I can print out this design
