Help needed with APP13 (IPTC)

[ratmalwer]

Hi Phil, hello Everyone

Great tool of yours. It helped me a lot. I even implemented it to my program, the Delphi-way. But unfortunately for my purpose it works to slow.
So I went back to my pascal-script witch reads the IFD-Tags.

Now I need to get hold on the Keywords and or Subjects in the APP13 (IPTC) and I am completly stuck.

As far as I understood is the data stored in the segments as followed.
SOI
APP1
APP2
APP(n)

The segments contain the Marker and Lenght of the segment itself.
So I am able to read the APP1 whitch gives me (E1FF   and Length: 48652).

But on Position: 48652 (+20) I do not find anything that looks like a Marker.

Where do I get wrong?

Please point me to the right solution.
If you have additional Information or hints about extracting the Keywords I would be glad, as I did not study the subject troughoutly.

I include an exerpt of my code to clarify.

Thanks Markus

[Phil Harvey]

Hi Markus,

APP13 contains Photoshop IRB records, one of which may be the IPTC record.  See the Photoshop file format documentation and the IPTC IIM format specification for details.

- Phil

[ratmalwer]

Hi Phil

thanks for the quick answer.
Just found your option for the HTML-Dump. Witch helps me a lot!!! Is seems that I have a problem swapping the Hexvalue correctly.

For the moment I can try going a step further. -  So I hav work for a week or two :-)

Markus