Thanks so much for the advice. I did try Gimp the other day but didn't find it at all user-friendly. Tried for at least an hour to shade the text but to no avail; couldn't find how to do it. I obviously have "much to learn." No, the text is not for a website but rather for making an electronic signature that can be inserted into documents.
I'm aware that Photoshop would have no problem doing it, but certainly can't afford the hefty price tag for the software at this point. Thank you again for your help, though.