Hi jayde10

Welcome to Rootschat

The answer is yes - to a point. Some people have software which can "add in" pixels to enlarge a photo, but there is a point at which there are more added pixels than original ones, and the picture doesn't look so good.
In my experience, you're almost never going to get a good enlargement of a small picture. You are much better off trying to get a better copy of the original.
Why not post your picture here and see if people can do something with it?
Cheers
Prue