Selection won't contract if selection was made by Ctrl+a or simply selecting everything
So I wan't to make a selection of an entire page with an equal border around it that isn't selected. To achieve this I used Ctrl+a to select everything and then Select>Modify>Contract. However, for whatever reason this won't actually reduce the selection around the canvas. I also have this problem if I select the entire canvas manually using the rectangle marquee tool.
If I make a selection has some areas not touching the border, then only the areas not touching the border will contract. So how do I contract a selection if it's touching the edge of the canvas?


