Reframe
Reframe changes a video clip's aspect ratio while AI fills the new edges to match the scene, making it easy to repurpose footage for any platform.
Reframe adds to your frame, it doesn't crop it. The original clip is kept intact — the AI generates new content along the expanded edges to fill the new aspect ratio. The subject is centered automatically; no manual placement required.
When to Use Reframe
Reframe is the right tool any time your footage needs to live in a different aspect ratio than it was shot in — and you want the new frame to look complete, not cropped.
Repurpose landscape content for vertical social — convert 16:9 footage to 9:16 for TikTok, Instagram Reels, and YouTube Shorts without losing the subject
Adapt footage to platform specs — quickly reframe a single master clip for every delivery format your project requires
Explore creative framing without reshooting — try a square, ultra-wide, or portrait ratio to see how the shot holds in a new aspect
Reframe generated Studio content on the spot — use the quick action button on any Studio result card to immediately repurpose what you just created
Starting a Reframe
There are three entry points — all lead to the same workflow.
From Studio — navigate to Studio → Post-Production → Reframe, then load a clip
From a chat clip — click the Transform icon on any video clip thumbnail and choose Reframe Video
From a Studio result — tap the quick Reframe action button directly on any Studio result preview card
Getting Started
Step 1: Load Your Clip
Pick the video clip you want to reframe. Three sources are available:
Upload — select a file from your computer (MP4, MOV, or other common formats; up to 100 MB)
Recents — pick from any clip recently used or generated in Chat Video Pro
Import from Premiere — pull a clip directly from your active Premiere Pro timeline
The clip loader is skipped when entering from the chat Transform menu or a Studio result button — your clip is already pre-loaded.
Step 2: Choose a Target Aspect Ratio
Select the ratio you want the output to be. Seven options are available:
16:9
Wide
YouTube, desktop, broadcast
9:16
Vertical
TikTok, Reels, YouTube Shorts
1:1
Square
Instagram feed, social ads
4:3
Classic
Standard TV, Zoom
3:4
Portrait
Upright portrait format
21:9
Cinema
Ultra-wide cinematic
9:21
Tall
Extra-tall vertical
Your current clip's aspect ratio is automatically excluded from the list — converting a clip to the ratio it is already in would have no effect.
Step 3: Choose Quality
Draft — faster processing, supports clips up to 30 seconds. Use Draft to test your ratio and fill hint before committing to a full render.
Final — best quality output, supports clips up to 10 seconds. Use Final for delivery.
Start with Draft to quickly iterate on ratio choice and fill hint, then switch to Final for your delivery render.
Step 4: Add an Optional Fill Hint
The fill hint is a short text description that guides what the AI generates in the newly added areas. Leave it blank for fully automatic fill, or type a brief phrase when you want to steer the output.
Examples:
forest background, seamlessbrick wall, warm lightdark studio, soft gradientextend concrete floor
Keep fill hints short and descriptive — a few words or one short phrase. Describe what the new area should look like, not what the subject should do. Subject positioning is handled automatically.
Step 5: Generate and Use the Result
Click Generate. A progress indicator shows while Reframe processes the clip. When the preview appears:
Play it back to review the new framing and fill
Click Insert to Timeline to place it on the Premiere Pro timeline
Click Save to Library to store it for later use
If the result isn't quite right, adjust the fill hint or quality tier and regenerate.
How Reframe Works
Subject auto-centering — The AI detects the primary subject and places it at the visual center of the new frame. There are no manual anchor points or keyframes to set.
AI fill — Reframe generates new content along the expanded edges to match the look and content of the scene. The original clip remains intact; the AI adds to it rather than cropping.
Input limits — Clips must be at least 1 second and no larger than 100 MB. Duration limits depend on the quality tier: up to 30 seconds for Draft, and up to 10 seconds for Final.
Pro Tips
Stable shots work best
Locked-off shots, talking heads, product shots, and slow b-roll give the AI a consistent background to extend. Fast camera movement and quick pans make it much harder to generate a seamless fill — use stable, steady clips whenever possible.
Draft first, Final for delivery
Draft quality is fast enough to run several iterations quickly. Test different fill hints and confirm the framing looks right before running a Final render. The extra processing time for Final is worth spending only once you are satisfied with the Draft result.
Use the fill hint for complex backgrounds
When the new areas are large or the background is detailed, a short fill hint almost always produces better results than leaving the field blank. Describe the environment simply: "outdoor park, sunlight" or "dark office, city lights through window."
Trim long clips before using Final quality
Final quality supports clips up to 10 seconds. If your source clip is longer, trim it to the segment you need in Premiere Pro before importing — you get a better result and a faster render.
Pair Reframe with other Studio tools
Generate a clip in Motion Director or AI B-Roll, then immediately Reframe it for a different platform using the quick action button on the result card. The Studio result entry point is the fastest way to repurpose generated content the moment it lands.
Troubleshooting
The fill edges look inconsistent or shift between frames The source clip likely has camera movement. Reframe works best on locked-off shots. Try a more stable segment of the clip, or use a shorter section where the camera is still.
The subject is off-center in the output The source clip may have an extreme or off-center composition. Trim the source to a tighter crop in Premiere Pro that better centers the subject before sending it to Reframe.
The fill area looks wrong or doesn't match the scene Add or adjust the fill hint to describe the background more specifically. Even a brief description like "extend the sky, blue, bright" gives the AI useful context when the source edges are complex.
The Generate button is disabled Reframe requires an API key configured in Settings. Go to Settings → API Keys, confirm your key is entered, and check that it is funded.
Draft quality looks noticeably rough Draft is designed for quick iteration, not delivery. Once the ratio and fill hint look right in Draft, run a Final quality render for the version you plan to use.
My clip is over 10 seconds and I want Final quality Final quality supports clips up to 10 seconds. Trim the clip in Premiere Pro to a 10-second or shorter segment, then reimport and try again. Use Draft quality if you need to reframe the full longer clip.
Generation failed or timed out Try again — generation can occasionally fail under high load. If failures continue, check your API key status in Settings and confirm the key is funded.
Next: Learn about AI Color Match — instantly match the color grade of any clip to a reference frame.
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