In this tutorial I cover a new feature of Adobe's Bridge CS5, showcasing how you can automatically watermark a series of images when making a PDF portfolio. You can use an image as your watermark, instead of what we traditionally see done with a form and plain text.
Because I didn't include anything about Photoshop's 20th anniversary, I'd like to point out that the traditional gift is china. I have a lovely tea set that I'll gladly give to Adobe's Photoshop representative, if we ever meet in the future. :o)