Apple Aperture 2 - Manual (Page 95)

Chapter 3 Working with Aperture Projects 95
I
What Are Versions?
Once you have masters on your hard disk, you can review and make adjustments to
your images. For example, you can change the exposure, contrast, or saturation, or add
information to an image, such as the photographer’s name, event, and location. To
work with images, Aperture creates a “version” of each master that includes your
adjustments and embedded information, and leaves the master unchanged. A version
refers to the master on your hard disk, but it is not the master itself. Versions store only
the thumbnail image, adjustments, and embedded information. A full image file is not
created until you are ready to print or export, saving valuable storage space on your
hard disk.
In many cases, your workflow may call for different renderings of the same image. For
example, a client may request a color as well as a black-and-white version of the same
head shot. You can create multiple versions of the same image in Aperture at any time.
When you create a version, Aperture reads the original master on disk and displays it on
the screen. As you make adjustments or add information to the image, Aperture displays
the image with your changes to the version, but the original master is never changed.
Pictures
folder
Computer
Aperture
Library file
3A
3B
3C
2A
2B
Versions
from
Master 1
Master
Versions
from
Master 2
Master
Versions
from
Master 3
Master
1A
1
1B
1C
1D
2
3