Now Image Joomla Gallery has become truly multi-functional. You can upload to your website not only pictures, change effects and layouts, but also embed HTML code. You can insert videos from YouTube, Vimeo, insert pages of the site in the Iframe, and do everything that HTML and CSS allow.
This option is available in "IMAGE OPTIONS" -> field "Html Code:"
Now your users will be able to share images on your website with their friends and also download images to the computer. In Joomla Gallery, an option is available that allows you to show the Sharing button and the image download button on the image.
"Gallery Settings" -> tab "SOCIAL BUTTONS":
"Gallery Settings" -> tab "General" -> Enable Download button: YES: