Apple Aperture 2 - Manual (Page 245)

Chapter 10 Applying Keywords to Images 245
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If you sell your images to image libraries, you can export the keywords assigned to your
images as IPTC data. During export, Aperture embeds your keywords individually in the
image file as IPTC-compliant keyword fields. The more keywords you apply to your
images, the more likely it is that your images will be located by potential customers. For
more information, see Chapter 17, “
Exporting Your Images ,” on page 487.
Important: If you are planning to export your keywords as IPTC data, make sure your
keyword phrases are no more than 64 characters in length. Longer keyword phrases
may not be displayed properly in other IPTC editors or operating systems.
There are several ways to apply keywords:
 Using the Keywords HUD
 Using keyword controls and presets in the control bar
 Using the Lift and Stamp tools via the Lift & Stamp HUD
Keyword controls
Lift tool in the tool strip
Stamp tool
in the tool strip