I'd like to be able to put my signature or initials in the corner of all my photos. Is there an easy way to do this?
I'd like to do this with a nice font which would be the same on every photo.

The easiest way is to make your signature into a brush. If you don't know how, ask, and I will find you a tutorial on doing that. Or someone else will come along and tell you how.

check out this cool little freeware called picture shark-

you can add watermarks to entire folders of images - an image, a blob of text in whatever font you have installed, etc - very versatile & free.

Picture Shark is very cool.
Thanks for the heads up Graffi.
John

Thanks for the link Graffi!

Thanks Graffi.

Thanks for the link; it should come in handy.