Ok, I'm assuming she has purchased some sort of digital camera or scanner, right?

Now, if she has then there is generally a few software packages that can assist with minor changes that she is asking for. I would recommend you tell her to install the software provided with her device and take advantage of the utilities she already has available. I've found that not only are they useful for the novice image manipulator, but also very helpful in understanding the methodology of manipulation.

If you have any further questions, feel free to email me personally. I have a great deal of experience in dealing with people like this.