Visual AISkills
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Fix & Edit
Change image format
Essential

Square to vertical cover

Extend a square image into vertical cover format

Use this skill when you need a repeatable image workflow, not a one-off prompt guess. It defines the input, output, tool path, and quality gate before generation starts.

Input
square image
Output
vertical image
Use this skillCopy options
Best fit

Change image format

ComfyUI inpaintingGPT Image 2FLUX

Useful for social publishing

Job to be done

Create vertical image from square image, using a task-first workflow instead of a loose prompt dump.

Workflow type

outpainting, crop-control

Quality promise

The output must preserve user intent, survive visual inspection, and be ready for the target channel.

Workflow outline

  1. Prepare the source input: square image.
  2. Pick a first tool path: ComfyUI inpainting, GPT Image 2, FLUX.
  3. Generate or edit toward the promised deliverable: vertical image.
  4. Review the image for drift, broken details, unreadable text, and weak composition.
  5. Save the prompt, references, and final settings that produced the best reusable result.

Copy-ready skill card

Skill: Square to vertical cover

Scene: Fix & Edit / Change image format

Input: square image

Output: vertical image

Tools: ComfyUI inpainting, GPT Image 2, FLUX

Quality check: the result must match the promised output and preserve the user intent.

Copy distribution

Take this skill into your AI tool as a prompt, a workflow card, or a portable SKILL.md draft.

Quality gate

  • The final asset clearly matches the requested vertical image.
  • The main subject still reflects the original square image.
  • Text, hands, logos, edges, and product details are not visibly broken.
  • The result is usable in the target channel without another full regeneration.

Prompt starter

Create vertical image for this task: Extend a square image into vertical cover format

Input available: square image

Preferred tool path: ComfyUI inpainting, GPT Image 2, FLUX

Keep the result faithful to the input and optimize for the change image format scene.

Evidence and maintenance

Source IDs
IMG-018, IMG-023, IMG-026
Priority
Essential
Library track
Starter

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