
this video we'll explore how to undo redo and step back in time as you're
editing you can follow along with this file from the practice files for this
tutorial or an image of your own let's start by making some paint strokes on
this image select the brush tool in the tools panel then go over to the swatches
panel and click on a color there you can use any color that you like move into
the image and make a brush stroke by the way if your brush tip isn't big enough
go up to the options bar for the brush tool click on the brush picker and set
the size there I'll click off of that picker to close it let's make a couple
more strokes go to the swatches panel again select another color and stroke
and let's do that one more time so let's say that you want to get rid of the last
action that you did in Photoshop in this case making that pink stroke the quick
way to do that is to use a keyboard shortcut command + Z on the Mac or ctrl
+ C on Windows which I'll do now and the pink stroke goes away I can bring it
back by pressing command + C again or ctrl + C again so that keyboard shortcut
is a toggle for undoing and redoing the last action that you took if you prefer
to use a menu command rather than the shortcut you can go up to the Edit menu
and there you can choose undo and Photoshop even tells you what action
you're going to undo and then edit and redo now what if you want to undo more
than just one step in that case go up to the Edit menu and this time choose step
backward and you can do that up to 50 times by default and each time your
stepping back one action one step in time similarly
you can step forward one step at a time edit step forward edit step forward
edit step forward there's one more way that you can step through time in
Photoshop and that's using the history panel the history panel is located here
in this collapsed column of panels if you don't see it go up to the window
menu and choose history I'm going to expand this panel by moving down to its
bottom bar until I see a double pointed arrow and then dragging down so what we
see in this panel is a separate bar for each action that I just took on this
image open and then three strokes with the brush tool keep your eye on the
panel as I make another stroke my fourth stroke was just recorded in the history
panel - now let's use another tool to see how it's recorded
go to the tools panel and this time select the dodge tool which is used to
make things lighter the Dodge tool also has a brush tip just like the brush tool
to make the Dodge tool tip bigger go up to the options bar for this tool and
there you have a size slider that you can drag and then click in a blank area
to close the brush picker now come into the image and let's drag over the leaf a
couple times each time I release my mouse and then drag again another Dodge
tool state is recorded here in the history panel the beauty of having these
states in the history panel is that you can step back through them one by one
like this or you can jump to a particular state like this and each time
you do that everything in the image changes to the way it looked at that
state at that point in time you also can step forward or jump forward in time in
the history panel like this two things to keep in mind about the history panel
if you do go back to a previous state let's go back here and then you do
something else let's say I dodge in this area of the image keep your eye on the
history panel and you'll see that everything after the state I'd gone back
to disappears it's as if you went back to a fork in the road and took a
different path everything on the first road beyond the fork disappears and the
second thing to keep in mind is that when you close the image whether or not
you save it your history disappears the next time you open the image the
history panel will be cleared out and we'll start again with a fresh history
now if the history panel isn't your cup of tea you can rely on the simple
commands in the Edit menu instead undo for single undos and step backward for
multiple undos either way you have lots of flexibility to correct any mistakes
or try new approaches as you edit an image
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