This morning found me on one of my favorite trails in Rabun County, Georgia, USA. After minimal editing in Camera Raw to bring the colors to match up with what my eyes saw, I added a border. This was done in Photoshop CS5. It can also be done in other editing programs.
To do it in Adobe Photoshop open the photo to edit. To add the inside border choose "Image" and then "Canvas Size". A popup will appear where you can choose the boarder width and color. Click ok and up pops your new border. I used 0.2" and white for the inside and 3" and black for the outside border. Simple as that.
BTW: The font I used was Lithos Pro.