> The JPEG format is a tagged file format that contained a set of typed
> sections. One of these sections is a descriptive text section.  You could
> look at some JPEG source code to see how to locate the correct tag and
> load its contents.

YES! That what I suspected. 

> I would suggest looking on www.jpeg.org (or something like that) for
> pointers to the jpeg format. I used it once to rapidly find the image
> dimensions of a jpeg image.

Only reference was 4MB of ISO postscript document. Oh, well. Better get it.
Worth it now that I know it is part of the JPEG definitation.
Thanks very much.

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Phil Scadden, Institute of Geological and Nuclear Sciences
PO Box 30368, Lower Hutt, New Zealand
Ph +64 4 5704821, fax +64 4 5704603
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