I've found 2 techniques that work on some of the glues. You can try pressing from the paper side with a lot of steam. The other method is microwaving for just a few seconds. Like 5 or 10. Stay right there, don't walk away! If these methods work, the paper will peel right off. There might be residual glue, I just iron on a piece of thin muslin. If neither of these works, then just cut the paper off as suggested.