How do I convert a horizontal video to vertical automatically?

Upload eligible footage and request a 9:16 version, naming the people and details that must stay visible. Valmera can use sampled visual evidence to choose and position a crop or fit the source over a blurred backdrop. Review the resulting preview, correct specific shots and create the final MP4 in Studio.

How much picture does a 16:9 to 9:16 crop remove?

A full-height 9:16 crop keeps about 31.6% of a 16:9 source's width and removes about 68.4%. For a 1920×1080 source, that retained region is about 608 pixels wide. This describes cropping; padding keeps the full composition visible at a smaller size within the vertical output.

Can I make video vertical without cropping anyone out?

Request padding or blurred bars. These modes fit the full source composition inside the vertical frame. They still scale and re-encode the picture, and people or writing can become small. Keeping the frame's edges is not a guarantee that every detail remains readable.

Does auto-reframe track a moving subject?

Do not assume continuous motion tracking. Framing can use different crop positions or fitting modes across source-time spans and shots, but that is not a guarantee of a smooth crop path following every movement. Review the entire movement and ask for fitting or a correction for the affected span when needed.

What happens when two people are visible?

Face size does not establish who is speaking. Automatic framing can fit an ambiguous wide shot, while shot-specific framing can treat a close-up differently. State who or what must remain visible and verify the dialogue and picture together. A crop that cannot contain both people needs a different composition.

Can different shots use different framing?

Yes. The editing system supports source-time spans with different crop positions and fitting modes within one output aspect ratio. Automatic framing can preserve or create such a composition when the available evidence supports it. Inspect each shot and its boundaries; this is not proof of correct speaker selection.

Does Valmera upscale a crop or preserve identical quality?

A crop can be enlarged. In the standard main-video path, a 1920×1080 source can become a 1080×1920 output even though the vertical crop contains only about 608 pixels of source width. Source-based final rendering avoids simply delivering the working preview, but scaling and encoding are not lossless and do not recover missing detail.

Can an MCP assistant deliver the final vertical video?

A compatible assistant can use the available authenticated framing and preview tools. Under the checked public MCP contract, creating the final export remains a separate Studio action. Review the selected version there, create its final and download the completed file.

Is automatic reframing free?

Account creation and uploads are free; indexing and agent editing require a subscription and available credits. New checkouts have no trial. The standard Valmera paid-plan policy omits overlay watermarks, but service settings can override it. Inspect the actual final file for branding and any end card.

Auto Reframe a Horizontal Video to Vertical

Ask Valmera for a vertical, square or portrait version of your uploaded footage. Automatic reframing uses available visual evidence to help choose a composition. Tell it which people, gestures, slides or screen controls need to remain visible, then review each shot.

A crop fills the new frame by removing part of the source picture. Fitting retains the full composition within a smaller foreground picture. The right choice depends on what the viewer needs to see.

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How to Auto-Reframe a Video

1
Prepare the source
Upload footage within both main-video limits: 14 GB and three hours. Wait for the processing required by the edit. Identify the people and visual details that matter before requesting a crop.
2
Specify the composition
Ask for a shape and a constraint, such as “make this 9:16; keep both speakers visible in the wide shot and frame the close-up separately.” Request padding or blurred bars when the whole source composition must remain visible.
3
Inspect each shot
Check the beginning, middle and end of every shot and any movement between them. Confirm the intended person, readable captions, screen labels, titles and blur coverage. A completed tool operation does not prove those details are correct.
4
Correct the affected span
Name the particular problem and time, such as “at 00:12 the crop hides the left speaker; fit that wide shot with blurred bars.” Review the revised result, including the transition back into the close-up.
5
Export in Studio
Select the reviewed version, wait for the original source to be available and create the final MP4 in Studio. Download and inspect the actual file. Each additional aspect ratio needs its own review and export; uploading to a social platform is a separate step.

Processing and corrections can consume credits. Example prompts are illustrative, not measured guarantees of one-message completion.

What a Vertical Crop Retains

For a 16:9 source, a full-height 9:16 crop retains about 31.6% of the original width. On a 1920×1080 source that is a region about 608 pixels wide, with about 68.4% of the source width outside the crop. Positioning the window changes which region survives.

Illustrative crop geometry: changing the position can keep this drawn subject in view. The diagram is not an automatic-framing test.

That loss applies to the crop shown here. A fitted conversion uses the whole source composition, and a different arrangement of clips can have different geometry. Turning a landscape frame into a vertical output does not inherently require discarding the sides.

Compare Crop, Black Bars and a Blurred Background

The blurred backdrop is your own footage, scaled up to cover the frame and box-blurred, with the fitted picture centred on top.

Choice	Useful when / check carefully
Crop / Fill	The important subject fits inside the narrower region. Check movement, gestures and everything near the edges.
Padding / Fit	The full composition matters. Check whether faces, slides or screen labels remain readable at the smaller size.
Blurred padding / Blur	You want the full composition over a backdrop from the same footage. The background adds no detail to the foreground.

The framing panel lets you draft a ratio, fill mode and crop position before selecting Apply. Chat can request these choices as part of a larger edit. Review the rendered preview after either route.

Example Brief: A Wide Shot, a Close-Up and Movement

Suppose a recording opens with two people at opposite sides of a wide shot, cuts to a close-up, then shows the speaker walking across the room. One centered crop may fail that sequence. This is an illustrative brief, not a recorded test result:

Source section	Request and review
0:00–0:08 — two people	Fit the wide shot with blurred bars; confirm both people and any slide remain visible.
0:08–0:14 — close-up	Crop around the intended person; verify speaker identity against the dialogue.
0:14–0:18 — movement	Keep the entire walk visible with fitting, or request a specific framing correction and inspect the full movement.

Valmera supports framing that varies across source-time spans while retaining one output aspect ratio. Automatic framing can use that structure when sufficient evidence is available. It is not limited to one fixed crop position for an entire video, and it does not promise continuous motion tracking within every shot.

What the Automatic Decision Can Miss

The current implementation can use sampled frames, indexed spatial evidence and shot boundaries to choose crop positions or fitting modes. It can preserve an existing shot-specific composition and fit uncertain material. Samples may miss brief movement, and a detected face does not establish who is speaking or what matters in the story.

For multiple people, check the dialogue and picture together. For gameplay or slides, name the controls or text that must stay visible. If the result fits when you wanted a tighter crop, explicitly request the crop and accept its edge loss. If it crops away required content, request Fit or Blur for that span and check the new preview.

A request to restore the source ratio removes the explicit reframe; cuts, captions, zooms and other edits remain. Setting 16:9 only restores the source shape when the source was 16:9.

Check the Actual Detail and Final File

The standard main-video sizing logic can turn 1920×1080 into a 1080×1920 vertical output. Its roughly 608-pixel-wide crop is enlarged to the output width; the larger dimensions do not recover the lost detail. Fitting can reduce the foreground, and a blurred backdrop can be enlarged. Final rendering re-encodes the picture and is not lossless.

Compare the dimension examples with the actual downloaded file. Check captions, titles, blurs, motion, audio and total runtime. Under the checked public MCP contract, an external assistant can edit and review through the available tools, while final-export creation remains in Studio.

The published source-and-final example shows a centered square crop and three retained scenes. It includes a 17-second final with a visible mark and five-second end card. That session used an explicit framing instruction; it is not a benchmark of automatic subject selection.

The standard Valmera paid-plan policy omits overlay watermarks, but service settings can override it. Inspect the actual final file for branding and any end card.

Capability and geometry notes reviewed September 7, 2026 against the framing controls and implementation. Diagrams and the multi-shot brief are illustrative. No new automatic-framing performance test is claimed.

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