I have a square image that I am looking to turn into a landscape sized image by adding solid black borders to the left and right of the image (optionally with a fade to white type gradient). I know this is a really simple thing to do, but I don't know where to start.
I don't have any image software on my PC, other than Picasa. I tried looking at PicMonkey online but it didn't seem to do what I wanted.
Can someone give me some simple steps to accomplish this?