Sven Neumann writes:
 > I already explained that the JPEG plug-in cannot access the settings
 > that were used to save the file.

Actually, it shouldn't be that hard to at least try. If the
quantization tables used in an image correspond exactly (or "closely
enough") to those produced by libjpeg with some setting of
jpeg_set_quality(), it would be nice if GIMP remembered that as the
default quality to use for the file. Or something like that... One
might even consider keeping and re-using the original quantization
tables instead of using jpeg_set_quality() in case the quantization
tables don't seem to be produced by libjpeg.


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