Pinterest has finally provided a code that you can add to your website to prevent Pinterest users from pinning your content.
The code is simple… It is a meta-tag that needs to be added to the head section of your web pages:
<meta name="pinterest" content="nopin" />
Pinterest spoke about the code:
When a user tries to pin from your site, they will see this message:
“This site doesn’t allow pinning to Pinterest. Please contact the owner with any questions. Thanks for visiting!”