I hope you never have to uninstall Image Attributes Pro, but if that day comes, should you worry about losing all the image attributes?
In other words: If you uninstall Image Attributes Pro, will all the image attributes (i.e. Image Alt Text, Image Title, Image Caption and Image Description) be deleted?
The answer is NO!
Image Attributes Pro updates image attributes right into the WordPress database and it’s saved forever. It will not be lost when you uninstall the plugin.
This is in fact a double-edged sword. Since the changes are permanent, make sure you take a database backup before you run the “Bulk Updater“. Once the change is made, there is no way to undo it without a database backup.
For more questions, please check out the Documentation.