Question: I have a sheet of adhesive vellum with some words on it. How do I apply it to cardstock?
Answer: Usually you just pull of the backing of self-adhesive vellum and it should just stick. As far as I know, it sticks to cardstock the same as any other medium. If it is a sheet of self-adhesive vellum with only some words you want to apply, you can just cut those parts out and apply them the same way.
If you vellum doesn’t stick, I use vellum adhesive to get it to stick. I usually can’t even see it under the vellum.