In this article we have two separate procedures to integrate open graph meta on our Drupal site to insert a custom image when we publish an article on facebook.
How to hide data in a JPG file
As you can see, what I'm proposing and 'enter data within of image files, especially in JPG files. The choice of using the JPG files to hide data is not ' was taken randomly. The JPG files in the last few years have seen a spread high, in fact, can they be 'found everywhere, starting from the most websites, to get to the digital photo albums.