Asymmetrical trimming

Last updated on Apr 1, 2026

Learn how to perform asymmetrical trims to adjust edits differently across tracks while keeping everything in sync in Adobe Premiere.

Asymmetrical trimming happens when a combination of Ripple In and Ripple Out edit points is selected on different tracks, with only one edit point per track selected. This allows you to trim clips in opposite directions while maintaining alignment. If more than one edit point is selected on a track, all edit points move in the same direction.

You can perform asymmetrical trimming in both the Timeline and Trim Edit modes.

In an asymmetrical trim operation, the trim duration is the same across all tracks, but each edit point can move left or right, depending on its type.

  • The primary trim direction determines the main edit point. It can be set by selecting a tool, using a keyboard shortcut, or pressing a button, and it applies to all tracks where the edit point matches the primary trim type.
  • Edit points that don’t match the primary trim type move in the opposite direction.
  • Setting the primary direction in the Timeline determines which edit point drives the asymmetrical trim.

When trimming asymmetrically, all clips shift consistently across tracks, keeping everything in sync. The trailing clips move in the same direction across tracks, which helps maintain alignment as Ripple In and Ripple Out edits adjust clips differently.

For example, if you drag an edit point 10 frames to the right with the Ripple Edit tool, 10 frames are added to other edit points set as Ripple Out. At the same time, 10 frames are subtracted from edit points set as Ripple In.

Note
  • The edit points themselves don’t move, but reveal more of the clip’s head material. Trailing clips on all tracks shift to the right by 10 frames.
  • Trim In and Trim Out combinations are not considered asymmetrical trimming. Even if the sides of the edit point differ, they move in the same direction, and trailing clips don't shift.