Syntax for option -iptc_print

[jenderek]

Hello,

some days ago i used graphic tool NCONVERT to handle meta information of
some JPEG pictures. The used meta information type i used is called IPTC
as described on XnView Wiki page by URL:
https://www.xnview.com/wiki/index.php/Metadata#IPTC
I test it with nconvert version 7.12 on Windows and Linux.

By option -fullinfo i see after line with "IPTC:" phrase all IPTC
information. According to online help available by "-help" option
printing of IPTC tag value should be done by option:
-iptc_print tag

Unfortunately it is not described how this option should be done. I tried
commands like:
nconvert -iptc_print 0x50 MSC_RaR2014_125.jpg
nconvert -v -iptc_print 80 MSC_RaR2014_125.jpg
nconvert -v -iptc_print Byline MSC_RaR2014_125.jpg

But no IPTC value is now shown by these commands. So can somebody
explain how to use syntax rule concerning that option? Or is it a
software bug?

Furthermore for some IPTC tag only hexadecimal value is printed , but no
human readable text. This can be seen by running a command like:
nconvert -fullinfo *.jpg | grep "????"
???? (0x3e): 20121127
???? (0x3e): 20131015
???? (0xdd): 0:0:0:-00001
???? (0x87): de

Example cq5dam.web.4-3.3.jpg is found on basf.com press sub page
http://www.basf.com/press-photos/corp/d ... enditions/
Example MSC_RaR2014_125.jpg is found on wikipedia with URL
https://commons.wikimedia.org/wiki/File ... 14_125.jpg
Felder_iptc_694_340px.jpg is found at
http://fotowiki.beuermann.de/index.php? ... _340px.jpg

Thanks for tips concerning that problem.

Jenderek

[xnview]

is option should be done. I tried
commands like:
nconvert -v -iptc_print 80 MSC_RaR2014_125.jpg

There is a bug...

Furthermore for some IPTC tag only hexadecimal value is printed , but no
human readable text. This can be seen by running a command like:
nconvert -fullinfo *.jpg | grep "????"
???? (0x3e): 20121127
???? (0x3e): 20131015
???? (0xdd): 0:0:0:-00001
???? (0x87): de

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