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Anonymous
Heh @ thread.
OP, no, jpeg's and other picture formats only lose information when they're being actually edited and resaved in a manner that loses image quality.
One of the cool things about computers is that each time something is copied, the computer tries to make sure that the actual file itself does not lose data in the process - hence the MPAA and RIAA's freak out about how easy it is to share shit.
In summary, converting PNG to JPG: loss, converting JPG to lesser quality JPG: loss, Copying JPG to another location: no loss (unless there is an actual HDD or other disc drive problem).
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