PicMonkey is a very easy to use photo editor that'll give you quality to your images. It's free, no registration is needed, everything can be done in the browser window, it's quick, and anyone with a third grade education or lower can use it. There is a subscripted version for about 30 bucks a year that comes with lots of additional nice features. Give PicMonkey a look. I think that you'll be glad that you did.