How to turn a horizontal video into a vertical one

Last updated 2026-08-16 · 5 min read

What is the short version?

A wide frame carries its information across its width. A vertical frame has no width to spare, so something must be chosen and something must be moved. Cropping the centre is the version that loses the speaker the moment they step sideways, and it is what most reframing tools do.

1. Go to Vizard Agent and upload the horizontal video.
2. Say which platform it is for, and how long you want it.
3. Name anything that must stay readable, especially text already in the picture.

What do you need before you start?

The finished wide cut and a destination. Nothing needs pre-cropping or re-exporting, because Vizard Agent works from the video you already have. What genuinely changes the outcome is telling Vizard Agent what is in the picture besides the speaker, since text laid out for a wide frame is the thing that breaks first.

• The finished horizontal cut. No need to re-export or pre-crop it yourself.
• The destination. 9:16 for TikTok, Reels and Shorts. It changes more than the frame shape: it changes what has to be legible at phone size.
• A note about text in the picture. Titles, lower thirds and end cards were laid out for a wide frame. In a vertical one they are cropped in half or too small to read. Tell Vizard Agent they exist.
• A length, if the wide version is long. Reframing and shortening are different jobs, and asking Vizard Agent for both at once is normal.

What do you type into Vizard Agent?

One sentence covers it, and the clause about text is the one people leave out. Vizard Agent will look for burned-in titles either way, but naming them means it treats them as something to preserve rather than something it found.

Prompt

Variants worth knowing:

• Reframe only, same length. "Just make it vertical, do not shorten it." Vizard Agent will otherwise assume a feed wants it tighter.
• The other direction. Vertical to horizontal works too, and is the harder job: the sides have to be filled with something rather than chosen from what exists.
• Keep the cinema look. If the source is 23.976 fps, say to keep it. Vizard Agent will otherwise deliver at the rate the destination expects.

What does Vizard Agent actually do?

Here is the order Vizard Agent worked in on a real wide-to-vertical job. What stands out is how much of the run is about the text rather than the picture, which is the part a straight crop never addresses.

1. Looks at the video and pulls both frames and the transcript.
2. Reads the transcript through to the ending, so the cut lands on a finished sentence rather than a timecode.
3. Finds exactly when the title cards appear, then zooms into them to pin the timing down to the frame.
4. Looks at the title card design — typeface, placement, colour — because whatever replaces it has to match.
5. Looks at the outro text separately, since end cards are laid out differently from titles.
6. Reframes the picture, following the subject rather than fixing the crop.

Steps 3 to 5 are the reason this is not a crop. Text burned into a wide frame cannot survive a vertical crop, so Vizard Agent has to find it, understand it, and rebuild it at the new shape.

What does the result look like?

From the run this page is written from, probed on the delivered file: 1080x1920, H.264, 58.27 seconds, audio preserved. The frame rate came back at 23.976 fps, which is what the source was shot at, so the cinema rate was carried through rather than normalised to 30.

That cuts both ways and is worth saying plainly. Vizard Agent picks output specs from the source and the destination rather than from a fixed template, so if you need something particular — a frame rate, a bitrate, a duration — say it in the prompt.

This category was not separately measured, so treat the timing as a range rather than a promise: comparable work runs a median of 28 to 38 minutes end to end. Across all projects the median cost by tier is Flash 47, Pro 55, Max 242, Ultra 263 credits.

When does this not work well?

Reframing takes information away, and there are shots where the information is the width. Vizard Agent will still deliver a vertical cut of them; it will just be a worse video than the wide one, and that is worth knowing before you ask.

• Two people side by side in a wide frame. A vertical crop holds one of them. If the exchange between them is the point, the honest answers are a stacked split or cutting between them, and Vizard Agent will do either if you ask.
• Text you did not mention. Anything burned into the picture that Vizard Agent was not told about may end up cropped. It does go looking, and telling it is faster than hoping.
• Wide establishing shots lose their reason to exist. A landscape that works because it is wide does not work vertical. Those shots are usually better shortened than reframed.
• Small source resolution. Reframing crops into the picture, so a 720p wide source leaves less than 720p of real detail. Vizard Agent still delivers at 1080x1920; the detail is not invented back.

How do you fix a result that came back wrong?

Say what is wrong and where, in the same conversation. Vizard Agent still has the source, the transcript and the frame analysis, so a correction is a change to the existing cut rather than a fresh start, and it does not re-upload or re-transcribe anything.

• "The crop cuts off the title at 0:12." Vizard Agent knows when that card appears and rebuilds it at the vertical shape.
• "You lost me when I walk left." That is a tracking correction, not a re-edit.
• "Too tight on my face." Framing is adjustable without touching anything else.

How does Vizard Agent compare to doing it yourself?

Reframing by hand in Premiere or CapCut is a solved problem, in the sense that anyone can do it. What it costs is attention: a keyframed crop that follows the speaker, then every burned-in title rebuilt at the new shape, then an export to check it. Vizard Agent does the same work and reports what it changed.

The manual version is not difficult. It is repetitive, and the repetition is per title card and per movement, which is why wide videos so often stay wide.

Common questions

Will it just crop the middle? No. Vizard Agent follows the subject through the frame. Centre-crop is exactly what makes a speaker walk out of shot.

Can it go the other way, vertical to horizontal? Yes, and it is the harder direction, because the sides have to be filled rather than chosen. Tell Vizard Agent what you want at the edges: blur, a flat colour, or generated extension.

Does the audio change? No. Reframing is a picture operation and Vizard Agent leaves the audio as recorded.

Can it add captions while reframing? Yes, and doing both in one run is worth it. Captions laid out for a vertical frame are not the same as captions squeezed down from a wide one.