User guide

Chapter 6 Work with metadata 213
About IPTC metadata
In Aperture, you can import and export IPTC metadata for a photo in an XMP sidecar le. XMP
sidecar les are XML les that accompany each photo containing IPTC and other metadata
associated with the photo. Any eld containing information in the IPTC Core metadata view for
a selected photo version can be exported to the XMP sidecar le for that version. The IPTC Core
metadata view is compliant with the IPTC Core specication version 1.0. For more information
about choosing the IPTC Core metadata view, see Modify metadata in the Info inspector and
Inspector HUD on page 198. For more information about exporting XMP sidecar les, see
Exporting photos overview on page 358. For more information about the IPTC Core specication,
go to http://www.iptc.org.
If you intend to export your keywords as IPTC metadata, make sure each keyword entry is no
more than 64 characters long. Keyword entries longer than 64 characters may not be displayed
properly in other IPTC editors or operating systems.
Here are some examples of common character limits for IPTC elds.
IPTC eld and character limit Description and example
Caption (2000 characters) A long-form description of the subject and related
information in a natural-language caption
Example: Mayor Alvarado addresses a crowd at the
rst soccer match of the season.
Keywords (64 characters) A list of words describing the subject in discrete
words or phrases
Example: Politician, Mayor, Futbol, Soccer, News, Game,
Team, San Jose
Provider (32 characters) Photographer’s name and/or agency name
Example: Matthew Birdsell/Sun Times News
Copyright (128 characters) Copyright date, photographer’s name, agency name,
and rights
Example: © 2009 Matthew Birdsell/Sun Times News.
All rights reserved.
Title (64 characters) A unique identier, used by an agency or organization
to catalog images
Example: mt52642j
Date Created (16 characters) Date the photo was created
Example: 05/16/2009
Image City (32 characters) City where the photo was captured
Example: San Jose
Image State/Province (32 characters) Province or state where the photo was captured
Example: California
Image Country (64 characters) Country where the photo was captured
Example: USA
Instructions (256 characters) Applicable restrictions, rights, or embargo information
Example: MAGS OUT, INTERNET OUT, NO THIRD-PARTY
SALES
Creator (64 characters) The photo byline text
Example: © Matthew Birdsell/Sun Times News
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