montmorency wrote:(Is the IPTC info used by some direct printing systems?).
Apart from being able to set and display them with viewers like irfanview, does anything much else make use of captions or comments?
Thank you.
I think IPTC is mainly used by newspapers, magazines, journalists, professional photographers, stock photo organizations, etc. - I use it mainly to embed image title, caption, location, copyright, EXIF data, keywords, etc. in conjunction with a piece of software (a visual database) that allows me to catalog and search for images stored on my computer.
Here is a link that explains IPTC in more detail:
http://www.controlledvocabulary.com/ima ... c_naa.html
I know of one Photo web site
http://www.flickr.com/ which uses IPTC information if present in an image and automatically generates image title, caption, and keywords when a user uploads a photo.