Thread:BentLauridsenDK/@comment-30621636-20161203182123/@comment-26692787-20161203200728

Only admins have the right to delete or rename an image. There are 3 ways for normal editors,
 * post your request here: List_of_images_to_be_renamed
 * ask an admin on his wall page
 * reupload the changed image with the old name.