tiffsplit src.tif [ prefix ]
tiffsplit takes a multi-directory (page) TIFF
file and creates one or more single-directory (page) TIFF
files from it.
The output files are given names created by concatenating
a prefix, a lexically ordered suffix in the range [aaa--zzz],
If a prefix is not specified on the command line, the default prefix of
x is used.
tiffsplit exits with one of the following values:
An error occurred either reading the input or writing results.
Only a select set of "known tags" are copied when splitting.