The optional Enhanced Image plugin, introduced in CKEditor 4.3, supports inserting images into the editor content. It provides the following features when compared to the classic 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 default 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 Enhanced Image Plugin article to learn more about this feature.
If you are looking for pixel-perfect image alignment with vertical and horizotal whitespace, configurable image border and file manager integration, try the default Image plugin. If you need to insert images which are automatically rescaled, optimized, responsive and delivered through a blazing-fast CDN, try Easy Image.