This is a simple WordPress plugin which allows a site adminstrator to convert images in the uploads folder. You simply go the the tools -> CITM page and select the images you want to convert.
Then the image will be convert to a media item and moved to a right subfolder if you have set up month and year folders.
FEATURES
*supports multi image formats jpeg,jpg,png and gif.
*Styled and buildt just like in the core.