Getting IPTC metatags to work
IPTC metatags allow you to embed textual information into your jpeg files. You can embed right into your image files the title, description, keywords and even categories in some cases.
For those who know, but never used IPTC tags...
Specially if you upload to more than one agency, embeding your photo title, description and keywords into jpeg image files is most useful and a huge time saver. Most websites will read it pronto and submission forms suddenly are filled
For those who use it but things don't work out very well...
... and this is the main theme of this article because it also happens to me and it's a little... annoying.
First, the IPTC fields you must use are "Title" (obvious), "Caption/Description" (not that obvious because you can find more than one that can fit, but only one works) and "Keywords". This one is also obvious and you should create one keyword field for each keyword.
Now, the problem comes when you do it all correctly and still it doesn't work!
I usually work my pics in photoshop and then add IPTC tags using another little program, photoME, if I'm not mistaken.
"Normal" single files taken right out of the raw file into PS, retouched and saved as jpeg usualy represent no problem.
And then comes panoramas. I set the software to create panoramas as to always create separate layers for each source image so that I can correct potencial stitching errors. And almost always IPTC tags would not work when submiting final images!
I asked some websites about it, including DT, and the answer was always something like "sometimes our engine is not capable of reading IPTC". Not the perfect answer.
My PS workflow has two final steps that are converting colorspace and changing to 8bits. This clears the file to only one layer also, but is not the same as flattening.
If I save panoramas, or other several layers image, (adjustment layers don't seem to count) as jpeg without flattening, even if all IPTC data is added correctly, most webagencies won't be able to read that IPTC.
I suspect the problem is related with the descriptio field because there's one agency that don't use that field and I get more functional IPTC data over there.
I hope you find this useful, I upload many panoramas and I've wasted too much time because of this!
Photo credits: Armando Frazão.
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