Reverting To Any State Of An Image - Adobe PHOTOSHOP ELEMENTS 2 User Manual

CHAPTER 1
26
Looking at the Work Area
Reverting to any state
of an image
The Undo History palette lets you jump to any
recent state of the image created during the
current working session. Each time you apply a
change to pixels in an image, the new state of that
image is added to the palette.
For example, if you select, paint, and rotate part of
an image, each of those states is listed separately in
the palette. You can then select any of the states,
and the image will revert to how it looked when
that change was first applied. You can then work
from that state.
Actions that do not affect pixels in the image, such
as zooming and scrolling, will not appear in the
Undo History palette.
About the Undo History palette
Note the following guidelines when using the
Undo History palette:
Program-wide changes, such as changes to
•
palettes, color settings, and preferences, are not
changes to a particular image and so are not
added to the Undo History palette.
By default, the Undo History palette lists 20
•
previous states. Older states are automatically
deleted to free more memory for Photoshop
Elements. You can change the number of states
displayed in the Undo History palette in
General Preferences. The maximum number of
states is 100.
• Once you close and reopen the document,
all states from the last working session are
cleared from the palette.
• States are added from the top down. That is, the
oldest state is at the top of the list, the most
recent one at the bottom.
• Each state is listed with the name of the tool or
command used to change the image.
• By default, selecting a state dims those below.
This way you can easily see which changes will
be discarded if you continue working from the
selected state.
• Selecting a state and then changing the image
eliminates all states that came after it. Likewise,
deleting a state deletes that state and those that
came after it.
If you select a state and then change the image,
•
eliminating the states that came after it, you can
use the Undo command to undo the last change
and restore the eliminated states.
Using the Undo History palette
You can use the Undo History palette to revert
to a previous state of an image and delete an
image's states.