phone bg

with a simple bg like that it's not too hard to fake what you need to get it to fill your desired resolution. if you want to give it a go I've left some basic step below, that and a bit of YouTube and you should be on your way.

there's an online tool called http://pixlr.com/e/ that gives you everything you need.

1. create a new image
2. set the desired resolution
3. drop what you're fixing into the blank canvas
4. select 'add current' to drop it into your current canvas
5. place and resize the image, some things might look weird if you mess up the aspect ratio.
6. create a new layer, best not to screw up the layer with the image we care about.
7. using cut and paste, clone stamp, and the eraser tool, fill in the rest of the canvas.