AfterEffects

Reverse a layer’s playback direction

When you reverse a layer’s playback direction, all keyframes for all properties on the selected layer also reverse order. The layer itself maintains its original In and Out points relative to the composition.

Note: For best results, precompose the layer and then reverse the layer inside the precomposition. This is the most accurate way to reverse footage. For more information on this process, see About nesting and precomposing.
  1. In a Timeline panel, select the layer you want to reverse.
  2. Choose Layer > Time > Time-Reverse Layer, or press Ctrl+Alt+R (Windows) or Command+Option+R (Mac OS).