You have photo you made with your digital camera, but you have date on it, and you want to erase it. Easy. Open photo in AdobePhotoshop, and zoom it to see date clearly. Pick up Clone stamp tool (see pic).
Now, hold ALT and click left mouse close near date on photo. Move on date, and just click left mouse. You see? That part where you clicked with ALT, copied there where date was. Now you see procedure. Just do it few times, and you will get clear photo without date on it.