Jacinda I've never used plain glue it very well may work. I've used Modge Podge before and it does work but the end product just isn't as nice. When padding compound dries (it dries fast) it's really flexible, it's almost stretchy, so the pad isn't stiff at the top and the papers come away really easily without any tearing. For me the padding compound is definitely worth it, I bought a bottle about three years ago for about $6 and I'm still using it, it's over half full.