1999.10.28 10:31 "Stupid TIFF question: tags in ascending order", by Robert Vesterman

Hi. The TIFF 6.0 Specification says, "The entries in an IFD must be sorted in ascending order by Tag."

Stupid question: does this mean strictly ascending order? In other words, is it legal to have the same tag twice (or more) in a single IFD? If so, how is a TIFF reader supposed to interpret situations like this? Ignore the earlier tag? Ignore the later tag? Something else?

Thanks,

Bob Vesterman.