This package rotates jpg images when uploading or saving an image, to "normal" orientation. Then your clients doesn't have to rotate image before uploading to Umbraco.
Installation:
Simple install the package and it works.
I hooks into the MediaServices.Saving event to rotate, hence it doesn't matter how you upload the files (content or media).
History:
1.1 Fixes a bug where an image would be rotated, even when no exif data was available, resulting in a corrupt image
1.2 Update to support json data in umbracoFile property in Umbraco 7.x