We have knockdown texture on the drywall in one of our bedrooms that we're turning into a nursery. We'll be repainting the walls and want like to apply some wall decals so we need to have a smooth surface to work with.
What is the best way to smooth out the texture? Is it feasible to scrape off the knockdown texture (like some sites recommend, after wetting the surface), or would applying a layer of mud/compound be a better route?
Our knockdown is very similar in appearance to this, in a matte "sand" color: