Boffoli just recently filed legal action against Pinterest for failing to remove dozens of his photos posted by users.

"They have a $5 billion valuation. They pretend as if the photographs on their website don't create value for them. They do," says Boffoli.

So what's the big deal if some people post pictures of his work online?

"When that happens, that means the people aren't going to my website because they can go to Pinterest and see these images, out of context, a lot of times without attribution. It doesn't help me the least if people don't know who created the image," he says.

"I worked 30 years to hone my craft. I spend a lot of time working on these images. I use a lot of expensive equipment. Why should anybody else profit from my work?"