#1: First open your photo. Now to make a professional
border around it we need to know the deminsions of the photo.
#2: To do
that, in the toolbar click Image>Image Size

#3: The border is going to be 30 pixels
bigger than the picture. My image, as you can see, is 640x480 pixels. So I
am going too make a new image and add 20pixels too the orignal size making
it 670x510

#4: Paste the
orignal picture into the new document. Now it should look similar too the
below image.

#5:
Now so you can see the edge of the photo, add a 1px stroke to it. Everyone
should know how to do that. Also add a 1px stoke too in inside part of the
background.

All done, here is my final image.