On almost every website project I’ve worked on, there’s one question that pops up over and over again: “can you copy-protect my images?” I’m certain I’m not alone on that one. Most of the time, they’ll ask that you disable right-click. I always deny the favor, as it’s a major interference in basic usability (and simply rude as well as pointless). Then there is the possibility of providing embedded copyright meta-data, but there’s nothing secure about it, as it can be removed any time. Photoshop architect Russell Williams explains why Photoshop doesn’t provide secure metadata. Read that and you’ll have all the arguments you need the next time a client needs you to “protect his images”.
*At least until there are some major watermarking breakthroughs, of course.