How do I get bubbles out of wallpaper?
If the wallpaper has just been hung, and is still workable, you can continue to squeeze the bubbles to the edge and out. If you have tried that and it’s not working, or if it’s causing your paper to shift, simply get a straight pin (the type you use in sewing), and push it through the paper over the bubble to release the air. Obviously, you want to use the smallest pin possible so that the hole will be tiny. If you use a tiny pin, the hole will not be noticeable. If you don’t have a straight pin, a safety pin will work also.