I have an old computer with pictures scattered about, some of them have the same name even though they are different in size and even composition.  They are in different directories and even different different drives.

It's no problem to find all the JPG, TIF, PNG pictures but I can't just copy them all to an external drive, they need to go into separate sub directories.

I hope there's a program that will do that, I don't mind if it's a paid program.

I've searched and frankly I don't know how to ask google, that is how do you phrase a complicate problem so google might find it?