Thank you also to John and Binnur!
Binnur: I understand what you mean, as when I display the image on my television, there is also absolutely no separation on the right side between the image and the background. Usually that effect is an enhancement but in this case it's a detriment. However, in any other situation when displaying the image on my computer regardless of the software I regularly use and regardless of how large or small I display the image, the background is either a mid-grey or light grey tone that provides nice separation.
EDIT: View the image
at my website. The image will be displayed with a white border on all sides. Then click the image if you want to enlarge it. A border on the right side about one pixel wide will be displayed that separates it from the background.