Is there any way to stop pinning the website images to Pinterest?

Everybody is well aware of pinterest these days due to its image tagging feature and they can pin their favorite images via websites or upload their own. But considering privacy some of the organizations and business owners won’t allow the users to pin their website images to pinterest. This can be done by simply inserting the following meta tag between <head> and </head> section in the html page which aids to block the users not to pin the images present in the website.

<meta name=”pinterest” content=”nopin” />

Below is the screen shot of a html page which blocks the users not to pin the images to pinterest.

Image-block-to-pin
Block users to pin images on pinterest