Add custom links and other custom fields to WordPress Gallery images.
This plugin is intended for WordPress developers who want to create image galleries and require a few additional fields not provided by Media Library.
Please note that this plugin isn't suitable for non-developers. To use custom fields you need to build your own custom plugin.
Full documentation at http://abcfolio.com/help/wordpress-media-library-custom-fields/.
This plugin adds the following fields to each of the images in WordPress Media Library: