This works because 1) ExifTool assumes IPTC in the file is coded in
Latin1 unless the recorded CodedCharacterSet is "ESC % G" (UTF8),
and 2) the -L option specifies the external character set as Latin1.
When the recorded character set is the same as the external character
set, no translation is performed.
I hope this makes a bit more sense now. :)
- Phil
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