>Simply opening it and closing it without re-saving does no harm.
>Otherwise, pictures on websites that are repeatedly viewed (which is
>"opening and closing" them) would rapidly degrade.
Ah, but there is a difference here. Viewing an image doesn't degrade it.
However printing does. The printing process depletes each pixel of a bit of
the density. Displaying an image on a monitor is using "additive" colors
whereas printing is "subtractive". If you print an image enough times, you
will have subtracted all the bits out of the image.
Good grief, and I have to EXPLAIN all this to you guys?
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