Reframe a video to a new aspect ratio

Last updated: October 12, 2026

Change a video's aspect ratio without cropping into the action, for example to turn a widescreen gameplay clip into a vertical 9:16 cut for social.

Before you start

  • The clip is in a session, or in your library ready to add to one.
  • Each model reads a clip only up to a certain length and returns a clip of the lengths it makes. Check the Duration the tool offers before you run it, and see The reframed clip is shorter than the original below for longer clips.
  • Each run costs Creative Units, charged by the second of video; the Reframe button shows the rate before you run it.

Steps

  1. You run this from the clip's full-size view, so start by putting the clip on the board. In the session, press ⌘K (Ctrl+K on Windows) and choose Add asset….

  2. Select the clip, then click Select 1 asset. It lands on the board.

  3. Hover the clip on the board and click View to open it full-size.

  4. In the Actions panel on the right, click Reframe video, then pick the new shape from the grid of ratios, such as 9:16 for a vertical cut; more are under More. The new frame is drawn around the clip in the viewer. Optionally, say what fills the new area in the box under the ratios, for example More sunset sky above, the rocky ledge below, and set Duration.

  5. Click Reframe.

  6. Wait while it runs. The viewer stays open, and the new version appears in the strip beside the original.

Result

The reframed clip opens in the viewer as a new MP4 at the shape you picked, with the original footage inside it and new picture around it. The original is unchanged: both sit in the strip on the left of the viewer, newest first. The new file is also added to the session's board.

Production tips

  • Place the footage before you run it. Drag and scale the clip inside the frame in the viewer, or use the alignment buttons above it, to decide where the new picture goes. Push the action to one side to leave room for a logo, captions or a button.
  • Say what fills the new area. A short description of what belongs above, below or beside the shot keeps the extension in the same place and light. Leave it empty to continue the scene as it is.
  • The ratio marked with a dot is the clip's current shape, so you can see how far the new frame departs from it.
  • One clip, every placement. Reframe the same master to each shape a campaign needs (vertical story, square feed, wide trailer) rather than regenerating, so every placement shows the same performance.
  • Need it larger afterwards? Follow the reframe with Upscale video on the result.
  • Get the file without a second encode. Download under Export saves the MP4 exactly as the model delivered it. See Download and export your assets.
  • Doing a batch? Build it into a workflow: Trim Video (under Utilities) cuts each clip to the part you want and to a length the model reads, then Reframe Video (under Editors) takes it in its Source Video input and reframes it to its Target Size. See Edit videos in a workflow.

If something goes wrong

  • The reframed clip is shorter than the original. The result is as long as the Duration you set, up to the longest the model makes, and some models read only the opening seconds of a longer clip. Set Duration to match the clip, or try another model. For a clip longer than any model takes, trim it into parts, reframe each and join them with Open in video timeline.
  • The run says the source video is too long. The message names the longest clip that model accepts. Trim the clip to that length (in the video timeline, from Open in video timeline, or with Trim Video in a workflow), or pick another model from the model menu at the top of the tool.
  • The run was refused or failed. The new version shows the failure in the strip. A refusal for content comes from the model's provider checking your description and the frames; see Your prompt or image was blocked. For anything else, try again, then change the description or the model; see Fix a failed or stuck generation.
  • The new area does not match, or the action is cut off. Describe what should fill the new area, and move and scale the clip inside the frame before you click Reframe; a frame smaller than the clip crops it.

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