Anyway to quickly and easily add a watermark over the pictures of a larger set?
The reason I am asking is I do a lot of poster work for cat owners. I need to send them proofs in smaller formats but set them up so they can't really use them online or for prints.
I want to add my website across the middle of the pictures from one corner to the next.
Any quick and easy way to do this?
Thought the 'Pros' would know best 




