Even if you don't have Photoshop, it's possible to make simple corrections to your images using Photoshop's online Express Editor. It's super easy to use. Upload a photo from your computer to operate on. Select a tool in the sidebar, and instructions will appear at the top of the window telling you what to do. Fix red eye, crop, resize, adjust the exposure, lighting, or white balance, add text, and more. Then save the image back to your computer.