How can you edit pictures?

Photoshop

You can edit pictures by downloading a software called Photo shop. That way you can airbrush it and do much more!! You can do simple editing with other software but photo shop is probably the best!

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Excuse me. You do NOT download Photoshop. You BUY Photoshop. It's a commercial product.

If you want something downloadable, there's a program called GIMP (GNU Image Manipulation Program) which is pretty good, and free.