We have all uploaded images to our website only to end up editing and uploading them all over again. With the Replace Image Plugin, you can upload old versions of your images without deleting the old image attachment. That means the references to those images stay intact.
The plugin is very simple to use. Simply find the image you would like to replace, click on Replace Image button, and the rest is easy. You may have to clear your cache for your changed images to be served. This is a free script.