The optional Enhanced Image plugin, introduced in CKEditor 4.3, supports inserting images into editor content. It provides the following features when compared to the standard Image plugin that is available by default in CKEditor distributions:
When the Enhanced Image plugin is enabled, thebutton is automatically added to the toolbar. Once clicked, it opens the Image Properties dialog window that replaces the one available in the standard Image plugin and lets you configure the captioned image.
A few configuration options are available to fine-tune this feature, including making the alternative text mandatory, adjusting the alignment style to use classes instead of inline styles or setting a custom CSS class for the captioned image. Refer to the Creating Captioned Images article to learn more about this feature.