You may be able to upload many different image file types to the Media Library, but only certain image files will show correctly in the Drag and Drop Editor.
IMAGE FILE TYPES:
Supported imagefile types include:
- .jpg / .jpeg
Make sure you are checking your image file types before inserting them into content. For example, .TIFF and .PSD files are typically very large and will not be supported in the Drag-and-Drop Editor.