Be careful using that. Anyone who has looked at photographs for any amount of time can tell that it is just plain wrong since not everything should be out of focus.I found this online. Thanks, I'm glad I didn't have to buy new software or download more stuff I don't need.
At present all I really want to do is blur the background of a picture, but I imagine that I will want to do more image editing function at some point.
Not trying to hijack or whatever, but this is one of those things that shouldn't have to be done in post. Using a wider aperture will acheive this in camera.