Don't take my word for this, but I would suggest moistening the sticky side of the vinyl with soapy water and then apply it, I only suggest this as I worked at a place who dealt with car vinyls (lettering, images etc) and that was the way the did most vinyls, then use a stanley to finish everything off. Even if there's bubbles, just tap them with the point of the blade and squeeze out the liquid.
Again, don't take my word for it, it's just something that might work haha