This is beyond most people's capabilities; most people are thwarted by "right clicking is not allowed". (Do browsers let sites disable right-click anymore? I don't think so. But there was a time when they did.)
Someone should make swfextract a browser extension.
I'm working on it. Did you know there's a thing called Emscripten? My dream usecase is I'm out and about, and I need to look up a restaurant's website and OH SHIT IT'S IN FLASH. no worries. [swfextract bookmarklet]. Weee there's all the content. YAY
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.
