Classroom in a book

Step further back using History
When working on most editing projects in Adobe Premiere Pro, you’ll make multiple 
edits and, inevitably, a few mistakes. You can back up one step at a time by pressing 
Ctrl-Z (Windows) or Command-Z (Mac OS) or by choosing Edit > Undo. You can also 
use the History panel to move back several steps at once.
Frame-specific editing with Snap
Adobe Premiere Pro has a tremendously useful feature called Snap. It’s a default 
setting, and in only a few instances will you want to turn it off. With Snap turned on, 
as you drag a clip toward another clip, the clip will jump to the edge of the adjacent 
clip to make a clean, unbroken edit. With Snap turned off, you’d have to slide the 
new clip very carefully next to the other clip to ensure there is no gap.
Snap is also useful when making precise edits. Using the 
Selection tool to trim a clip can be a bit clumsy, as you 
might have noted in step 6 in this section. Snap allows you 
to trim to the current-time indicator easily.
Locate the frame you want to trim by dragging the current-
time indicator through your sequence to that frame’s location (use the right arrow 
and left arrow keys to move to the specific frame). Use the Selection tool to drag the 
edge of the clip toward the current-time indicator line. When it gets near the line, it 
will snap to the current-time indicator, and you’ll have made a frame-specific edit. 
You can use this technique in all sorts of circumstances.
If you want to toggle the Snap feature off or on, click the Snap button in the top-left 
corner of the Timeline (shown here), or use the S keyboard shortcut.

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ADOBE PREMIERE PRO CS5 CLASSROOM IN A BOOK
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Using the Ripple Edit tool
A way to avoid creating gaps in the first place is to use the 
Ripple Edit tool. It’s one of the many tools in the Tools panel.
Use the Ripple Edit tool to trim a clip in the same way you used 
the Selection tool in Trim mode. The two differences are that the 
Ripple Edit tool does not leave a gap on the sequence and that 
the display in the Program Monitor gives a clearer representa-
tion of how the edit will work.
When you use the Ripple Edit tool to lengthen or shorten a clip, 
your action ripples through the sequence. That is, all clips after 
that edit slide to the left to fill the gap or slide to the right to 
accommodate a longer clip.
You need to trim a lot of footage off the beginning and end of 
the third clip, but this time you’ll use the Ripple Edit tool so no 
space is left behind: