When applying a background I have found the best way is to:
1. Cut background to fit
2. Spray water with a sqirt bottle on the background and tank. (light mist not soaked with water)
3. Use a credit card or object similar and push the air bubbles out of the background.
When you are done your background will be secure. The biggest benefit to this method is the background is much brighter and will bring a whole new look to your aquarium.
