Get rid of thin pic border after Crop

[zeuspaul]

For removing a tiny border I resize the canvas by a few pixels.  Either by a best guess or by first using the measure tool to determine the number of pixels. If the border isn't on the right side or the bottom I move the image left or right to capture the border. Then using rectangular select I capture the entire image.  I make a broad selection well outside the extent of the image.  Then in the image menu I select crop to selection.