User Manual

50 Image Adjustments and Effects
Using adjustment layers
Adjustment layers are
recommended for applying
image adjustments
experimentally and non-
destructively to your image.
An adjustment layer is created
by selecting an adjustment
from the Adjustments tab. As
its name suggests, an
adjustment layer is considered
a layer so it will appear in the
Layers tab on creation.
The Adjustments tab lists available adjustments in a selectable adjustments
list; after selection, the tab displays a Settings pane for that adjustment (and for
any selected adjustment layer present in the Layers tab).
Unlike the other layer types,
adjustment layers don't store
content in the form of bitmap
images, text, or shapes. Rather,
an adjustment layer applies the
adjustment to content on all
layers below it (you can
restrict the effects of the
adjustment to one underlying
layer by adding both to a
group; see p. 31).
The layer is essentially a container in which only the adjustment's settings and
its layer properties are stored.
Adjustment layers let you revisit the settings for a given adjustment as often as
needed, while continuing to edit the image in other ways. If you later decide you
don't even need an adjustment, you can simply remove it!