This is only true if Flash is loading external jpegs. If they're embedded in a swf, you would have to go through a great deal more trouble to extract image files. But a right-click 'Save image as' is about all the trouble that most people are willing to go through, and as such, I'd guess that Flash is an effective deterrent much of the time.
I know a few photographers and illustrators, and based on what I hear from them, there is a shockingly pervasive attitude that any image on the web can be appropriated for any reason whatsoever. Even corporate types who should know better think nothing of grabbing images from portfolio sites (or flickr) to use in marketing campaigns, etc. I think it's wise for photographers to do what they can to protect their business and their work.
Also, consider the audience. Often portfolio sites exist solely to impress art directors at ad agencies, who (in my experience) aren't as hostile to flash as, say, developers at startups. And clumsy animated or skeuomorphic interfaces are often totally acceptable in that world. Many of them are still building flash 'microsites', after all. Real sales and commerce are taking place elsewhere (corbis, veer, getty images, et al).
Someone should make swfextract a browser extension.
Hitting the 'print screen' should work.
I guess it wouldn't be so easy if the photo is bigger than the screen. But if they are so worried about people copying their photos, they're probably using a scaled-down version.
I even checked to see that the downloaded image matched what I saw on my screen.
Is it supposed to do something else?
For the record, I'm using Chrome on Ubuntu, but I also tried it with Chrome and Windows and got the same results.
I'm not the best photographer in the world, but I'm better than some. Sharing my photos doesn't hurt me, but it does help me.
Found this: http://www.riecks.com/security/
Anyway, here's the comment:
Flash does absolutely nothing to prevent someone from saving copies of images. With basic knowledge of using the developer tools built into any modern browser, it's easy to see the urls being loaded for any resource on a page.
Some photographers have this fear of their images being copied. They spend way too much time concentrating on it. What any successful photographer can tell you is that most of your time is spent being a business person, not snapping the shutter. You make money by marketing yourself and growing your business, not policing the entire internet for errant copies of a photo.