Discover the ease of editing clips in Premiere Pro: how you can quickly set In and Out points, trim clips in the Timeline, work with audio waveforms, and more.

In and Out points define a specific portion of a clip or a sequence. Marking is the process of setting the In and Out points of a clip. The In point is the first frame you want to include in a sequence. The Out point is the last frame you include in a sequence. In a typical workflow, In and Out points for a clip are marked in the Source Monitor.

Adjusting a clip's In and Out points after it is edited into a sequence is called trimming. Typically, trimming clips modify how they play back in a sequence. For example, as you view the edit, you want to cut to the incoming clip a little sooner than you originally planned while marking clips. To fix that problem, trim the clip using trimming tools in Premiere Pro.

Clips can be edited in the Source Monitor, Program Monitor, or on the timeline. You can trim clips by dragging the edge of a clip. A clip's "edge" is a clip’s In or Out point or edit point. You can edit multiple clips at the same time. Specialized tools allow you to trim an edit point easily and accurately, reducing the number of steps involved and maintaining the integrity of the sequence.

Not:

There are many keyboard shortcuts available for the job of trimming, however, several of them aren't set by default. To set trimming shortcuts, go to Edit > Keyboard Shortcuts (Windows) or Premiere Pro > Keyboard Shortcuts (Mac OS).

Working with audio clips in the Source Monitor

You can work with audio clips, and audio from audio and video clips in the Source Monitor. You can view audio waveforms, scrub audio waveforms, and zoom in and out on audio waveforms.

View audio waveforms

When an audio clip is opened in the Source Monitor, audio waveforms appear automatically. You can view the audio waveforms for clips containing multiple audio channels when opening them in the Source Monitor.

To customize the style of the audio track, click Timeline Display Settings, the wrench tool on the timeline panel. To display audio as waveforms in the timeline, select Show Audio Waveform.

Display audio as waveform
Display audio as waveform

Scrub the audio waveform

Scrubbing is when you drag the playhead across a segment of audio waveform. It is an efficient way to navigate in an audio clip.

To open a clip in the Source Monitor, double click the clip in the timeline panel. The playhead appears when you click the audio clip. Click across the clip, forward or backward, to move along or scrub the clip.

To remove scrubbing, go to Edit > Preferences > Audio and deselect the option Play audio while scrubbing.

Preferences
Preferences

Zoom in or out on an audio waveform in the Source Monitor

You can zoom into an audio waveform in the Source Monitor to better identify locations for markers, In points, or Out points.

  1. To open it in the Source Monitor, double-click on an audio clip in the Project panel or Timeline panel. 

  2. To zoom in horizontally, drag either end of the zoom scrolling bar that runs below the time bar in the Source Monitor.

    The waveform of all channels and the time bar expands or contract horizontally.

  3. To zoom in vertically, do one of the following:
    • To zoom in on a single channel, drag either end of the vertical zoom bar. It is next to the decibel ruler on the right side of the Source Monitor.
    • To zoom in on all channels simultaneously, Shift-drag either end of the vertical zoom bar.

    The waveform of one or all channels and the decibel ruler expands or contract vertically.

Return to default vertical zoom level

To return to the default vertical zoom level, double-click the vertical zoom bar.

Return to previous vertical zoom level

After returning to the default zoom level, double-click the vertical zoom bar. It allows you to return to the previous zoom level.

Not:

In Apple MacBook Pro computers, you can move two fingers on the trackpad vertically or horizontally on the zoom scroll bar to zoom in and zoom out on audio waveforms. To scrub audio, move two fingers vertically or horizontally anywhere in the Source Monitor except the zoom scroll bar.

Working with clips in the Source Monitor

The Source Monitor panel holds versatile tools, and methods for working with clips. You can use tools and techniques to set, move, or remove In and Out points, cue the playhead to any of these points, or preview the frames at their locations.

Open a clip in the Source Monitor

To open a clip in the Source Monitor, double-click the clip in the Project panel or Timeline panel.

Open and view recent clips from the Source Monitor

You can load more than one clip at a time in the Source Monitor. However, you can view only one clip at a time. Recently loaded clips are available from a menu at the top of the Source Monitor. Click the three stacked lines next to the sequence name and choose a clip from the drop-down list. Alternatively, you can use Shift + 2 key to cycle through each of the clips in the Source Monitor.

View recent clips from the Source Monitor
View recent clips from the Source Monitor

Set In points and Out points in the Source Monitor

To mark an In point: Drag the playhead to the frame you want. Then click the Mark In button, or press the I key.

To mark an Out point: Drag the playhead to the frame you want. Then click the Mark Out button, or press the O key.

In and Out selection in Source Monitor
In and Out selection in Source Monitor

Not:

After you mark In and Out points, you can always change your mind before you edit the clip into the sequence. Drag the In or Out points to a new position in the time ruler. You can also drag the playhead to a new frame and use the Mark In or Mark Out buttons to set new In or Out points.

Move In point and Out point together

The In/Out Grip is an icon present at the center of the textured area between the In and Out points. To move the In and Out point together, hold and drag the In/Out Grip to a different position on the Source Monitor time ruler. When you click the In/Out Grip, the cursor changes to a hand. Make sure that you drag the icon; otherwise, you simply cue the playhead.

The In and Out points move together, keeping the duration between them constant.

Not:

This technique also works with sequence In and Out points using the Program Monitor or a Timeline panel.

Adjusting edit points in the Source Monitor

  1. Set the In and Out points in the Source Monitor.

  2. Edit the clip into the Timeline.

  3. Double click the clip to load it into the Source Monitor.

  4. Hold and drag the In/Out Grip to a different position on the Source Monitor time ruler. Similar to Move In point and Out point together.

Not:

Viewing in and out frames this way works only with clips that you’ve opened in the Source Monitor from a sequence.

Cue to an In point or Out point

You use the Source Monitor to cue a frame for a clip and the Program Monitor to cue the current frame for a sequence.

Do one of the following:

  • To cue the current time to an In point, click the Go To In Point button.
  • To cue the current time to an Out point, click the Go To Out Point button.

Cue to the previous or next edit

You can use the down arrow key for the Go To Next Edit Point command and the up arrow key for the Go To Previous Edit Point command. This command works across all tracks, selected or not.

To go to the next edit in any of the targeted tracks in the Timeline, click the Go To Next Edit Point button. To go to the previous edit in any of the targeted tracks, click the Go To Previous Edit Point button.

The Go To Next Edit Point and Go To Previous Edit Point buttons are not available by default. You can find these buttons in the button editor. It is present in the lower right corner of the Source Monitor.

Button editor
Button editor

Remove source clip In point or Out point

  1. To open it in the Source Monitor, double-click a clip in the Project panel. 

  2. Choose from the following three commands:

    • Marker > Clear In
    • Marker > Clear Out
    • Marker > Clear In and Out

Not:

Timeline clip instances are not source clips. It is not possible to remove In points or Out points from timeline clips which have been loaded in the Source monitor.

Timeline trimming

You can trim clips quickly in the timeline using a combination of trim tools and keyboard shortcuts to select and adjust edit points.

Selecting edit points

Before you can use timeline trimming techniques, it is important to select edit points for clips in the Timeline first. You can select edit points with the mouse, or by using keyboard shortcuts.

Selecting edit points with the mouse

To select an edit point on the Timeline, click with the mouse to position the playhead.

Selection tool

The Selection tool is the default tool in the timeline. Clicking the edit point with the Selection tool chooses a Trim In or Trim Out edit point selection, depending on which side of the edit point you select. Moving the Trim In or Trim Out points is called a regular edit.

Selection tool
Selection tool

Ripple Edit tool

The Ripple Edit Tool closes gaps caused by the edit and preserves all edits to the left or right of the trimmed clip. Clicking the edit point with the Ripple Edit tool chooses a Ripple In or Ripple Out edit point selection, depending on the side of the edit point you click. If you use Ctrl-click (Windows) or Command-click (Mac OS) on the edit point with the Ripple Edit tool, the cursor shows the Rolling Edit tool.

Ripple Edit tool
Ripple Edit tool

Rolling Edit tool

The Rolling Edit Tool trims the In point of one and the Out point of the other, while leaving the combined duration of the two clips unchanged. Clicking the edit point with the Rolling Edit tool selects both sides of the edit point.

Rolling edit tool
Rolling edit tool

Not:

Track targeting does not affect selection of edit points when using the mouse. Dragging, as opposed to clicking and releasing the mouse to select an edit point, both selects an edit point and performs the trim.

Using modifier keys with trim tools

  • Use the Alt (Windows) or Option (Mac OS) modifier key to override normal linked­‐clip selection. Only one clip in the linked selection is selected. This technique is useful for setting up a split edit (L or J‐cut).
  • Use the Shift modifier key to add or remove other edit points to the current selection.
    You can combine both the Alt (Windows) or Option (Mac OS) key and Shift to ignore linked clip selection while adding or removing other edit points from the current selection.
  • Choose Edit > Preferences > Trim (Windows), or Premiere Pro > Preferences > Trim (Mac OS), to set the Allow Selection tool to choose Rolling and Ripple trims without modifier key. It changes the way that the Ctrl-click (Windows) or Command-click (Mac OS) modifier key works with the Selection tool. If the preference is checked, then the use of the modifier key is inverted.
Preferences
Preferences

Trimming in Timeline gaps

You can select the edit point of an empty gap between clips and use timeline trimming commands.

  • Regular Trim: This technique works the same as selecting the clip side of the edit point for the opposite direction. For example, selecting a Trim Out on the right side of an empty gap is equivalent to selecting the Trim In of the adjacent clip.
  • Rolling Trim: If one side of the edit point is an empty gap then it behaves the same as a regular trim.
  • Ripple Trim: Trimming the gap would move the edit point and shift all trailing clips. Trimming the gap includes the adjacent clip, in a different position but with its In point remaining the same.

Not:

Selecting the Shift clips that overlap trim point during ripple trimming check box in the Preferences dialog box (Edit > Preferences > Trim) shifts the overlapping track items during a ripple delete.

Trim type context menu

You can select an edit point (or change the trim type of an existing edit point) by right-­clicking an edit point. From the context menu choose one of the following items:

Trim type context menu
Trim type context menu

Select multiple edit points

Multiple selections of edit points are possible, including more than one per track. Use the Shift key with any trim tool to select more edit points. You can also drag to select multiple edit points. To select multiple edit points, drag a marquee around a group of clips.

If there are other edit points selected besides the one that you click, then they all change their type to the selected type. The Apply Default Transitions menu item applies the current default video or audio transition to each of the currently selected edit point locations.

Keyboard shortcuts for edit point selection

There are keyboard shortcuts for selecting edit points that use the playhead position and track targets. For more information, see Keyboard shortcuts in Premiere Pro CC.

Not:

Unlike selecting with the mouse, edit points on linked clips are not automatically selected unless the associated tracks are also targeted.

Select Nearest Edit Point

There are 5 "Select Nearest Edit Point" shortcuts you can assign in the Keyboard Shortcuts dialog box, one for each type of trim:

  • Select Nearest Edit Point as Ripple In
  • Select Nearest Edit Point as Ripple Out
  • Select Nearest Edit Point as Trim In
  • Select Nearest Edit Point as Trim Out
  • Select Nearest Edit Point as Rolling

If the playhead is not already at an edit point, it is moved to the nearest edit point either forward or backward. Then the edit points at the playhead on all targeted tracks are added to the current edit point selection, using the type of trim for the particular shortcut. You can use the menu item (or shortcut) for Deselect All to deselect edit points before using these shortcuts to start a new selection.

Go to Next Edit Point and Go to Previous Edit Point

It moves the playhead to the closest edit point on the targeted tracks. They maintain edit point selection at the playhead on targeted tracks, using the same type of trim as the previous selection. When there is no active edit point selection, these shortcuts only move the playhead.

In trim mode, you can move to the next and previous edit points with the same shortcuts without leaving trim mode and edit points remain selected.

Go to Next Edit Point on Any Track and Go to Previous Edit Point on Any Track

It moves the playhead to another selected edit point, except that all tracks are considered, not only targeted tracks. The playhead is moved, but edit points do not move. This shortcut exits trim mode.

Toggle Trim Type

It cycles between the types of trims in the current edit point selection. The trim type is changed from the current type to the next type in the order.

Performing a Timeline trim

Trims can be performed in the Timeline three different ways:

  • The edit points can be dragged with the mouse to a new position in time.
  • Keyboard shortcuts can be used to trim all selected edit points to the right or the left by one or more frames.
  • On the numeric keypad "+", "‐" and the Enter key can be used to trim all the selected edit points forward, or backward.

Not:

When using the numeric keypad to type several frames to trim, you do not need to type the "+" sign when entering positive numbers.

The keyboard shortcuts and the +/‐ keypad entry can also be used in the Program Monitor in trim mode. In addition, there are several buttons and other user interface elements such as the video displays in the Program Monitor that can be used to perform a trim during trim mode. See Working in trim mode.

You can only trim a clip longer until you encounter another clip in the same track, and you cannot perform a trim beyond the duration of the media in the clip. When trimming multiple tracks, you can trim until either you encounter another clip in the same track, or you reach the duration of the shortest clip in the group.

Performing ripple trims can cause clips on different tracks to get out­‐of‐sync. To limit which tracks shift during a ripple trim, toggle Sync Lock or Toggle Track Lock on tracks. Out‐of‐sync indicators draw in the visible part of a clip in the Timeline, not just at the head of the clip. If you zoom in or scrolling so that the head isn't visible, you can still see that a clip is out‐of-sync with its linked parts.

Trim by dragging with the mouse

After selecting one or more edit points, you can simply drag the edit point selection in the Timeline to perform a trim. While dragging, the cursor changes to the appropriate trim type based on the edit point that is clicked to start the drag.

When dragging an edit point with the mouse in the Timeline, the trim snaps to other edit points, markers, and the playhead if the Snap button is on. To toggle snapping on or off, use the keyboard shortcut S. 

Trim with keyboard shortcuts

The following keyboard shortcuts perform a trim whenever there is an active edit point selection, even if you are not in trim mode. If the full trim cannot be performed, the amount allowed is used and a tool tip indicates that the trim is blocked or limited by media or minimum duration.

Trim Backward and Trim Forward

Moves the edit points by one frame in the specified direction (left for backward, and right for forward).

Trim Backward Many and Trim Forward Many

Moves the edit points by five frames, or some other number of frames which is settable in the large trim offset preference. To change the large trim offset, choose Edit > Preferences > Trim (Windows), or Premiere Pro > Preferences > Trim (Mac OS), and then enter a new number of frames for large trim offset.

Extend Selected Edit to Playhead

Moves the selected edit point which is nearest the playhead to the position of the playhead, much like a rolling edit.

Not:

The existing Extend Previous Edit to Playhead and Extend Next Edit to Playhead are still available, since they operate on clips on targeted tracks without needing an active edit point selection.

Ripple Trim Previous Edit to Playhead and Ripple Trim Next Edit to Playhead

Ripple trims the previous or next edit point to the Playhead. You do not need to select an edit point to perform a ripple trim to playhead edit. Like the Extract command, a ripple trim to playhead edit does not affect clips on other tracks that are locked or not sync-locked, but all other tracks will have the region ripple-deleted. Sequence In and Out points are not affected.

Not:

A ripple trim to the playhead at the beginning or ending of a clip is sometimes called "Top and Tail" in editing terminology.

Trim with numeric keypad entry

You can specify a numeric offset using the numeric keypad whenever there is an active edit point selection, even if you are not in trim mode. When the Timeline is active, the current timecode indicator on the left becomes a text box that shows the numbers that are typed on the numeric keypad. The "+" key moves the trim forward to the right, increasing in time (you can omit the "+" key, and type a number). The "­‐" key moves the trim backward to the left, decreasing in time. The numeric offset is typically a small number of frames, so any number from 1 to 99 is treated as frames. If you want to specify a timecode, then use the numeric period key "." to separate the minute:second:frame parts for timecode entry. Press the numeric keypad Enter key to perform the trim using all of the currently selected edit points.

When the Program Monitor is in trim mode, then you can also use the numeric keypad to perform a trim when the Program Monitor is active.

Trim with the selection tool

You can change a clip’s In point or Out point by dragging its edit point with the selection tool in a Timeline panel. As you drag, the current In or Out point appears in the Program Monitor. A tool tip displays the number of frames that you are trimming: a negative value if you are dragging the edge toward the beginning of the sequence and a positive number if you are dragging toward the end of the sequence. You cannot trim past the original In and Out points of the source footage.

  1. Click the selection tool  and do one of the following:

    • To edit the In point, drag the left edge of the clip once the Trim-in iconappears.
    • To edit the Out point, drag the right edge of the clip once the Trim-out iconappears.

    Not:

    To trim only one track of a linked clip, press Alt (Windows) or Option (Mac OS) as you click with a Trim icon. Only one clip is selected. You do not need to hold down the Alt (Windows) or Option (Mac OS) key once you initiate the trim.

Trim with the playhead

You can trim a clip in a sequence to the location of the playhead. However, set up these keyboard shortcuts to do so first:

  • Trim In Point To Playhead
  • Trim Out Point To Playhead
  • Select Nearest Edit Point as Trim In
  • Select Nearest Edit Point as Trim Out

To set keyboard commands for trimming, see Customize or load keyboard shortcuts.

Making ripple and rolling edits in the Timeline

In Premiere Pro, you can perform a ripple or rolling edit directly on the tracks in the Timeline using the Trim mode.

About ripple and rolling edits

When you want to adjust the cut, or edit point, between two clips, use variations ripple edits and rolling edits. By using specialized tools, you can make adjustments in a single action that would otherwise require multiple steps to accomplish. When you perform ripple and rolling edits with trim tools, the affected frames appear in the Program Monitor side by side. Select an edit point with the Ripple Edit or Rolling Edit to trim a clip.

Rolling edit

The Rolling Edit Tool trims the In point of one and the Out point of the other, while leaving the combined duration of the two clips unchanged. Clicking the edit point with the Rolling Edit tool selects both sides of the edit point.

To trim only one track of a linked clip, press Alt (Windows) or Option (Mac OS) as you perform a split edit (L-cut or J-cut).

Rolling edit
In this rolling edit, the edit point is moved earlier in time—shortening the previous clip, lengthening the next clip, and maintaining the program duration.

Ripple edit

The Ripple Edit Tool closes gaps caused by the edit and preserves all edits to the left or right of the trimmed clip. Clicking the edit point with the Ripple Edit tool chooses a Ripple In or Ripple Out edit point selection, depending on the side of the edit point you click. If you use Ctrl-click (Windows) or Command-click (Mac OS) on the edit point with the Ripple Edit tool, the cursor shows the Rolling Edit tool.

To trim only one track of a linked clip, press Alt (Windows) or Option (Mac OS) as you perform a split edit (L-cut or J-cut). 

Make a rolling edit using the Rolling Edit tool

  1. Select the Rolling Edit tool.

  2. In a Timeline panel, drag left or right from the edge of the clip you want to change. The same number of frames added to the clip is trimmed from the adjacent clip. Alt-drag (Windows) or Option-drag (Mac OS) to affect only the video or audio portion of a linked clip.

Make rolling edits (extend edits) with the playhead

You can move the In point or Out point of a clip in a sequence to the playhead, without leaving gaps in the sequence. This type of editing is sometimes called extending an edit, or using extend edit commands.

Make a rolling (extend) edit to the playhead

  1. Click a track header to target the track containing the clip you want to trim.

  2. Drag the playhead to the location in the sequence to which you want to extend the clip In point or Out point.

  3. Click the Rolling Edit tool, and then select the edit point.

  4. Choose Sequence > Extend Selected Edit to Playhead, or press E.

Not:

If there is not enough media to extend to the playhead, Premiere Pro extends the clip to the end of the available media.

Make a ripple edit using the Ripple Edit tool

  1. Select the Ripple Edit tool.

  2. In a Timeline panel, hover the pointer over the In or Out point of the clip you want to change until the Ripple-in iconor the Ripple-out iconappears. Drag left or right. Subsequent clips in the track shift in time to compensate for the edit, but their durations remain unchanged.

    Not:

    When using the Selection tool, you can toggle from the Trim-in or Trim-out icon to a Ripple edit icon by pressing the Ctrl (Windows) or Command (Mac OS) key. Release Ctrl (Windows) or Command (Mac OS) to revert to the Selection tool.

Make slip and slide edits

Just as ripple and rolling edits allow you to adjust a cut between two clips, slip and slide edits are useful when you want to adjust two cuts in a sequence of three clips. When you use the Slip or Slide tool, the Program Monitor displays the four frames involved in the edit side by side, except when editing audio only.

Though Slip and Slide tools are typically employed on the center of three adjacent clips, each tool functions normally even if the clip is adjacent to a clip on one side and blank space on the other.

Make a slip edit

A slip edit shifts a clip’s In and Out points forward or backward by the same number of frames in a single action. By dragging with the Slip tool, you can change a clip’s starting and ending frames without changing its duration or affecting adjacent clips.

Slip edit
In this slip edit, a clip is dragged left, moving its source In and Out points later in time.

  1. Select the Slip tool.

  2. Position the pointer on the clip you want to adjust, and drag left to move the In and Out points later in the clip, or drag right to move the In and Out points earlier in the clip.

    Premiere Pro updates the source In and Out points for the clip, displaying the result in the Program Monitor and maintaining the clip and sequence duration.

Program monitor during a slip edit
Program monitor during a slip edit

Keyboard shortcuts to slip a clip

You can use keyboard shortcuts to slip a clip in a Timeline. To slip a clip, select a clip (or multiple clips), and then use one of the following keyboard shortcuts.

Action Keyboard shortcut
Slip clip selection left five frames

Windows: Ctrl+Alt+Shift+Left

Mac: Option+Shift+Command+Left

Slip clip selection left one frame

Windows: Alt+Shift+Left

Mac: Option+Command+Left

Slip clip selection right five frames

Windows: Ctrl+Alt+Shift+Right

Mac: Option+Shift+Command+Right

Slip clip selection right one frame

Windows: Alt+Shift+Right

Mac: Option+Command+Right

Not:

When performing a slip edit with keyboard shortcuts, it is helpful to have the playhead placed on the clip you are slipping so that you can see the slip edit being performed. You can use this method to align a video action with an audio cue.

Make a slide edit

A slide edit shifts a clip in time while trimming adjacent clips to compensate for the move. As you drag a clip left or right with the Slide tool, the Out point of the preceding clip and the In point of the following clip are trimmed by the number of frames you move the clip. The clip’s In and Out points (and hence, its duration) remain unchanged.

Slide edit
In this slide edit, a clip is dragged left so that it starts earlier in the sequence, shortening the preceding clip and lengthening the following clip.

  1. Select the Slide tool.

  2. Position the pointer on the clip you want to adjust, and drag left to move the Out point of the preceding clip and the In point of the following clip earlier in time, or drag right to move the Out point of the preceding clip and the In point of the following clip later in time.

    When you release the mouse, Premiere Pro updates the In and Out points for the adjacent clips, displaying the result in the Program Monitor and maintaining the clip and sequence duration. The only change to the clip you moved is its position in the sequence.

Program monitor during a slide edit
Program monitor during a slide edit

Keyboard shortcuts to slide a clip

You can use keyboard shortcuts to slide a clip in a Timeline. To slide a clip using keyboard shortcuts, select a clip (or multiple clips), and then use one of the following keyboard shortcuts.

Action Keyboard shortcut
Slide clip selection left five frames

Windows: Alt+Shift+, 

Mac: Option+Shift+,

Slide clip selection left one frame

Windows: Alt+,

Mac: Option+,

Slide clip selection right five frames

Windows: Alt+Shift+. 

Mac: Option+Shift+.

Slide clip selection right one frame

Windows: Alt+.

Mac: Option+.

Nudging clips

You can move clips forward or backward in the Timeline by one frame at a time, or by a large frame offset. This command is called "nudging". When you are nudging a clip, you are moving it forward, or backward in the timeline. When the clips being nudged are next to another clip, it overwrites clips as you nudge.

To nudge clips, select a clip, or multiple clips, and then use one of the following keyboard shortcuts.

Action Keyboard shortcut
Nudge clip selection 5 frames to the left Alt+Shift+Left (Windows)
Command+Shift+Left (Mac OS)
Nudge clip selection 1 frame to the left Alt+Left (Windows)
Command+Left (Mac OS)
Nudge clip selection 5 frames to the right Alt+Shift+Right (Windows)
Command+Shift+Right (Mac OS)
Nudge clip selection one frame to the right Alt+Right (Windows)
Command+Right (Mac OS)

Making split edits

You can create a split edit by unlinking the video from the audio in adjoining clips in a sequence, and then trimming audio separately from video so that the video of one overlaps the audio of the other. Typically, a rolling edit (or extend edit) is used for this task.

To trim only one track of a linked clip, press Alt (Windows) or Option (Mac OS) as you perform a split edit (L-cut or J-cut).

Work in trim mode

Trim mode is the state where the Program Monitor is in a special trim mode configuration. Certain keyboard shortcuts, button clicks, and J-­K‐L playback perform trim operations, like ripple or rolling edit. These behaviors are all part of dynamic trimming. Trim mode is ideal for fine-tuning an edit. While working in trim mode, you trim by adding or subtracting frames from the edit point as the edit plays back in a loop in dynamic fashion.

Not:

It is not necessary to loop playback in trim mode to refine edit. Some editors prefer to pause playback, and then click buttons, (or use J-K-L keyboard shortcuts), and then begin looping again. Editors use trim mode for such tasks as, refining dialogue, pacing a chase scene, or creating split edits.

Trim mode interface

The Program Monitor switches some of its buttons and the user interface to show a simplified 2-up display when in trim mode. It switches back to the standard Program Monitor configuration when exiting trim mode.

Within the Program Monitor, the video plays in a 2-up configuration, temporarily expanding and covering both left and right sides with a single video view. The trim buttons and shift counters are placed directly below the video. All the sequence's video tracks are composited together and the audio heard during playback is all of the sequence's audio tracks mixed together. The playhead loops in the Timeline during playback so that you can see the range of time that is being played.

Web
A. Outgoing edit point B. Incoming edit point C. Trim type Indicator D. Outshift counter E. Trim backward 5 frames F. Trim backward G. Add default transition H. Trim forward I. Trim forward 5 frames J. Inshift counter 

Entering trim mode

Prior to entering trim mode, a good strategy is to select one or more edit points with a trim tool in the Timeline. These selected edits remain intact once you enter trim mode. You can also enter trim mode without selecting edits ahead of time.

To enter trim mode, do one of the following:

  • Choose Sequence > Trim Edit (or press the Shift + T key).

If there is an active edit point selection, the playhead moves to the nearest selected edit point. If there is no edit point selected, then the playhead automatically moves to the nearest edit point on the targeted tracks. Edit points are selected on the targeted tracks with the trim type set to a rolling edit regardless of the currently active tool. If the Program Monitor is already in trim mode, then press the Shift + T key to toggle out of trim mode.

  • Double‐click an edit point with the Selection , Ripple Edit , or Rolling Edit  tools present in the Tools panel.
  • Shift-select, or marquee­‐select one or more edit points with the Ripple Edit, or Rolling Edit tools, moving the playhead to the nearest selected edit point and setting the Program Monitor to trim mode with the tool's trim type.

You can now trim clips in trim mode. To begin trimming, see Reviewing trims.

Not:

When double-­clicking an edit point that has already been selected, be sure to use the same tool and same modifier keys that you used to initially select the edit point, since the first click reselects the edit point based on the standard selection rules. The Program Monitor appears in trim mode automatically.

In the Timeline, you can select additional edit points within the same sequence and remain in trim mode. You can also make changes in the Timeline such as zooming in/out, scrolling, or changing track height, and remain in trim mode. If you are already in trim mode, you can use the keyboard shortcuts for Go to Next Edit Point and Go to Previous Edit Point and select new edit points and remain in trim mode. If you are not in trim mode, then these shortcuts move the playhead rather than select edit points.

To exit trim mode, see Exit trim mode.

Reviewing trims

To review the currently applied trims while the edit point selection is still active and you are in trim mode, press the Play button, or the Spacebar. The playback loops around the current edit point selection, playing from a specified pre­rolling time before the first edit point and ending a specified postrolling time after the last edit point. The prerolling and postrolling settings are set in Edit > Preferences > Playback (Windows), or Premiere Pro > Preferences > Playback (Mac OS).

Preferences
Preferences

To stop playback, press the Play button or keyboard shortcut again, and the playhead is moved to the selected edit point nearest wherever you stop.

J-K-L dynamic trim

When in trim mode, you can use combinations of the three shuttle keyboard shortcuts (J-K-L) to play the clips and perform a trim based on the location of the playhead when playback stops. For details about using keyboard shortcuts for shuttling, see Using the J, K, and L keys to shuttle video.

The type of the edit point at the playhead is used to determine which side is played. For Ripple Out or Trim Out, the left side view is played. For Ripple In or Trim In, the right-side view is played. For a rolling edit, both sides are played.

If you reach the media limit of the trim (no more heads or tails), playback pauses but the trim is not performed until you explicitly stop playback. This technique allows you to play back or single­‐step or shuttle in the opposite direction until you find the exact frame for the trim.

Not:

You can dynamically trim footage one frame at a time using J-K-L shortcuts. First select the edit point, then press the K key, and then tap either the J, or the L keys.

Refining Trims in trim mode

While playing in trim mode using Play, which begins playback in a loop, you can make further refinements to the selected edit points using buttons or keyboard shortcuts. Each time the loop plays back footage, you can modify the trim by clicking buttons, or pressing shortcuts. Each trim you perform is immediately committed to the sequence. The edits update in the Timeline, although the resulting change only appears in the Program Monitor on the next loop. Continue to adjust and review the edit until you are satisfied with the trim. 

Move on to trimming the next edit point by using the Go to Next Edit Point or Go to Previous Edit Point shortcuts (the up arrow, and down arrow keys), or stop playback, if you have finished.

Use the following techniques to refine your trim:

  • Use the Trim Forward and Trim Backward buttons to trim by one frame at a time. The keyboard shortcuts for trimming forward or backward by one frame at a time are as follows:
    • Press Ctrl+Left to trim backward. Press Ctrl+Right to trim forward (Windows).
    • Press Option+Left, to trim backward. Press Option+Right to trim forward (Mac OS).
  • Use the Trim Forward Many and Trim Backward Many buttons to trim by multiple frames at a time. The keyboard shortcuts for trimming forward or backward by multiple frames at a time are as follows:
    • Press Ctrl+Shift+Left to trim backward. Press Ctrl+Shift+Right to trim forward (Windows).
    • Press Option+Shift+Left, to trim backward. Press Option+Shift+Right to trim forward (Mac OS).
  • Use the numeric keypad "+" or "‐" offset entry to trim by the specified numeric offset.
  • Use the Apply Default Transitions to Selection button to add the default audio and video transitions to the edit point.
  • Use the Edit > Undo and Redo menu commands or shortcuts to change the trims during playback.

Not:

A typical editing workflow would be to first assemble the sequence using insert and overwrite edits. Then, refine your trims by moving from one edit to the next in trim mode, using shortcuts.

Trim tools in trim mode

Within the trim mode interface, and when playback is paused, use any trim tool, including the Selection tool, to drag across a clip to trim. If you drag over either clip, a ripple trim is performed. If you drag between the two clips, a rolling trim is performed. If you drag the Selection tool with the Ctrl key (Windows), or Command key (Mac OS) held down on the outgoing clip, a regular trim is performed on that side of the edit. If you drag with the same modifier key held down on the incoming clip, a regular trim is performed on that side of the edit.

The behavior of dragging across clips in trim mode on the edit point is the same as it is with the trim tools in the Timeline. Dragging to the left trims backwards, and dragging to the right trims forward.

Exit trim mode

Trim mode requires that at least one edit point is selected and that the playhead is positioned at one of the selected edit points. Any action that clears the edit point selection or moves the playhead away from an edit point exits trim mode.

To exit trim mode, do one of the following:

  • Click the Timeline.
  • Use the Sequence > Trim Edit menu command, or press the Shift + T key.
  • Close the Program Monitor with a menu item, keyboard shortcut, or workspace panel operation.
  • Scrub the playhead, or use any other Timeline or Program Monitor navigation command that moves off a selected edit point such as Step Forward or Step Backward.
  • Select or drag clips, or select or change any other object in the Timeline.
  • Switch focus to another sequence.

Keyboard shortcuts for trim mode

  • The Play/Stop Toggle keyboard shortcut starts or stops the playback. It is available when you are in trim mode, and defaults to the Spacebar key.
  • Use the Trim Forward and Trim Backward shortcuts to trim by one frame at a time.
  • Use the Trim Forward Many and Trim Backward Many shortcuts to trim by the Large Trim Offset frames at a time (the default is set to five frames). The Large Trim Offset value can be changed in Edit > Preferences > Trim (Windows) or Premiere Pro > Preferences > Trim (Mac OS).

Trimming and the History panel

The History panel shows each trim adjustment as an individual entry, whether using the keyboard, clicking one of the buttons or using J‐K‐L shortcuts. Entering or exiting trim mode does not change the entries in the History panel, so you can still undo one or more of the trim adjustments that were made during any trim mode session.

History panel
History panel

Slip and slide edits in trim mode

Since more than one trim edit point can be selected on a single track, it is possible to set up slip and slide edits by choosing a pair of opposing ripple edit points on the same track. After the edit points are set up, you can use keyboard shortcuts to complete the trim either in the timeline, or trim mode. Edit points can be Shift-selected to slip and slide multiple clips at the same time, as well.

Slip edit in trim mode

For details about slip edits with the Slip tool, see Making a slip edit.

To slip an edit using keyboard shortcuts, do the following:

  1. Select the Ripple Edit tool.

  2. Click the edit points at the In and Out point of the clip. Choose a Ripple In, followed by Ripple Out.

  3. Enter trim mode by pressing Shift + T.

  4. Perform a slip edit while looping playback.

You can also use this technique in the Timeline. Press the keyboard shortcuts for Trim Forward or Trim Backward, or use the numeric keypad.

Slide edit in trim mode

For details about slide edits with the Slide tool, see Making a slide edit.

To slide an edit in trim mode, do the following:

  1. Select the Ripple Edit tool.

  2. Click the edit points at the In and Out point of the clip. Choose a Ripple Out, followed by Ripple In.

  3. Enter trim mode by pressing Shift + T.

  4. Perform a slide edit while looping playback.

You can also use this technique in the Timeline. Press the keyboard shortcuts for Trim Forward or Trim Backward, or use the numeric keypad.

Asymmetrical trimming

Asymmetrical trimming can be performed in both the Timeline and in trim mode. An asymmetrical trim is when a combination of Ripple In and Ripple Out edit points are selected on different tracks with one edit point selected per track. If there is more than one edit point selected per track, all edit points move in the same direction.

The duration of the trim is the same on all tracks for each asymmetrical trim operation, but the direction that each edit point trims left or right may be different.

  • The primary direction of the trim determines the primary edit point. The primary direction of trim is determined by clicking a tool, using a keyboard shortcut, or clicking a button, and is the same on all tracks for each edit point that matches the primary trim type.
  • The edit points that do not match the primary edit point type trim in the opposite direction. See Specifying Primary Direction for Asymmetrical Trims in the Timeline for details about how the primary edit point for an asymmetrical trim is determined.

Notice that the direction of the shifting of the trailing clips left or right are the same on all tracks, which help to keep all tracks in sync. This shifting is due to the fact that the tail of the trimmed clip moves in a different direction for a Ripple In versus a Ripple Out edit point.

For example, if you drag an edit point to the right by ten frames with the Ripple Edit tool, then ten frames are added to the other edit points that are set up as a Ripple Out points. Conversely, ten frames are subtracted from edit points set up as Ripple In points.

Note: These edit points do not actually move, but reveal more of the head material of the clip. Trailing clips on all tracks shift to the right by ten frames.

Combinations of Trim In and Trim Out trims are not considered asymmetrical even if the side of the edit point differs, since the movement of the edit point is always in the same direction and there is no shifting of trailing clips.

Specifying Primary Direction for Asymmetrical Trims in the Timeline

For asymmetrical trims using the mouse in the Timeline, the primary direction is applied to the edit point that is dragged. If you select and drag an edit point, it determines the direction and the primary trim type. For example, if you click the mouse to set up a Ripple In trim on Video 1 and drag to the left, then all the Ripple In edit points that are selected on any track trim to the left and all the Ripple Out edit points trim to the right.

When using keyboard shortcuts for timeline trimming, the primary trim type is used from the previous mouse drag or trim mode operation, if the edit point is still selected. If the edit point is no longer selected (or you never used the mouse or trim mode to trim with the primary type), then the edit point on the highest­‐numbered video track with a selected edit point, or the lowest­‐numbered audio track if only audio has selected edit points, is used as the primary type. Its direction is specified by the particular keyboard shortcut.

  • To preview the edit once, click the Play Around button.
  • To preview the edit repeatedly, enable the Loop button and then click the Play Edit button.

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