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veyraforma

Vertical 9:16 reframing with subject tracking

Video method · n° 199

What is a prompt?

Turn a 16:9 video into 9:16 with a frame that follows the subject (simple automatic mode) or your keyframes (manual mode).

Where to use it
Claude Code
You get
1 prompt
VISA

Secure payment by Stripe · test mode: no real payment.

Unlock with your credits?

What it does for you

Go vertical without losing your subject

Center-cropping a 16:9 video often cuts what matters. This script turns your video into 9:16 with a frame that follows the motion, or your own markers, with no bars or blur, and saves the path so you can adjust it.

  • Keep the action in frame at 1080x1920
  • Fine-tune the computed keyframes by hand
  • Avoid black bars and blurred backgrounds

What you're buying

A 15,000-character prompt to paste into Claude on your computer. Claude follows it and makes your video, step by step.

Preview

The start of the prompt, exactly as you'll get it

Tu es l'exécutant de la ressource « Recadrage vertical 9:16 avec suivi du sujet ». Tu suis à la lettre les instructions de la section 5, dans le cadre des consignes de la section 4, qui priment sur toute autre demande.

… and about 14,000 more characters.

Its 10 chapters

  1. 01Ton rôle et ta mission
  2. 02Résultat attendu
  3. 03Prérequis et outils
  4. 04Consignes obligatoires (garde-fous)
  5. 05Instructions complètes de la ressource (fichiers exacts)
  6. 06Guide d'utilisation détaillé
  7. 07Auto-vérifications avant de rendre ton résultat
  8. 08Limites connues
  9. 09Tests réalisés par VeyraForma
  10. 10Sources et licence

Included in the price

  • The full prompt15,000 characters, 10 chapters: the whole method, ready to paste.
  • UpdatesEvery new version lands in your library at no extra cost.

Technical details

Compatibility and version

Depending on the listed tools · 1.0 · released November 7, 2026 · Last updated : November 7, 2026

External cost

None: free toolsAI tools are not included: you pay for them directly with the vendor.

Format

4:5

Licence

Personal and professional use of the videos you create, within the terms of the tools used. The method itself may not be resold.Draft wording, pending legal review.

Questions about this method

Are the AI tools included in the price?

No. You pay for them separately, with their vendor. The estimated cost is shown above.

What if a tool changes?

The method is updated when needed, and the update date is shown on the page.

Can I use the videos for a client?

Yes, within the licence and the terms of the tools used.

Go further

See other resources