Substack Header Image Maker

Describe what you want and AI handles the rest.

Original photo before create header images for substack posts — Before

→

Photo after create header images for substack posts with AI — After

Substack Header Image Maker Free Online | EditThisPic AI

Drop your photo here

or click to browse

Release to upload

Free • No signup

Popular use cases:

create header images for substack posts
AI header images for substack posts editor
photo header images for substack posts tool
free header images for substack posts editing

Cost: Free No signup required
Time: Instant results in 15-30 seconds
Works on: Any device - browser, phone, tablet, desktop
Powered by: AI-powered photo editing

How it works

Upload your photo

Drop your image into EditThisPic. JPG, PNG, WebP up to 7MB. Choose a clear photo where the area you want to edit is visible.

Expect: Most edits complete in 20-45 seconds. Complex changes may need 1-2 refinements.
Describe your edit

Type what you want: 'create header images for substack posts.' Be specific about details for best results. The AI understands natural language — no technical skills needed.

Tip: Be specific with details for more accurate results.

Copy one of these to get started:

Quick header images for substack posts edit create header images for substack posts — make it look natural and professional
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Professional result create header images for substack posts with attention to detail, matching lighting and perspective
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Social media ready create header images for substack posts and make the result Instagram-worthy
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Detailed header images for substack posts work create header images for substack posts, ensuring seamless blending with the original photo
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2 more prompts

Advanced precision create header images for substack posts — preserve surrounding details, only modify the target area
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Subtle enhancement create header images for substack posts — keep the change subtle and realistic, not overdone
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Review the result

Check the output carefully. Look for natural blending, consistent lighting, and realistic details. Compare before and after using the slider.
Refine if needed

If specific areas need adjustment, tap markers on those spots and regenerate. Most edits work well on the first try.

Tip: Markers are optional. Try without them first — the AI usually gets it right.

Try it free ↓

Substack Header Image Maker Free Online | EditThisPic AI

Drop your photo here

or click to browse

Release to upload

Free • No signup

"This tool is amazing for header images for substack posts editing. Just described what I wanted and it worked perfectly." @HappyUser

See it in action

Substack Header Image Maker — Example 1

A photo edited using EditThisPic to create header images for substack posts.

Prompt: create header images for substack posts — make it look natural and professional

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Substack Header Image Maker — Example 2

Another example showing a different scenario for this editing task.

Prompt: create header images for substack posts with attention to detail, matching lighting and perspective

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If something looks off

AI changed the wrong area

Why: The AI couldn't determine exactly which area you meant from the description alone.

Try: Tap a marker on the specific area you want to edit, then regenerate with the same prompt

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Tip: Markers tell the AI exactly where to focus. Use them when description alone is ambiguous.

Result looks unnatural

Why: The AI may need more specific guidance about the look you want.

Try: Add 'natural lighting and sharp details that match the rest of the photo' to your prompt

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Tip: Adding 'natural' and 'realistic' to your prompt helps the AI prioritize believability.

Lighting doesn't match

Why: The edited area has different lighting than the original scene.

Try: Add: 'match the lighting direction and color temperature of the original photo'

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Tip: If light comes from one side in the original, mention it: 'with light from the left side.'

Edges look rough or artificial

Why: Transitions between edited and unedited areas need refinement.

Try: Tap markers on the rough edges and regenerate: 'refine these edges for a seamless blend'

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Tip: Edge refinement is the most common adjustment — markers on problem areas make it quick.

Quick answers

Is the substack header image maker tool free?

Yes, EditThisPic lets you create header images for substack posts for free with one Quick edit per week. No signup or credit card required. For more edits, affordable credit packs and subscriptions are available.

How long does it take to create header images for substack posts?

Most edits complete in 20-45 seconds. Complex changes may need one or two refinements, but the entire process typically takes under 2 minutes from upload to download.

Do I need Photoshop to create header images for substack posts?

No. EditThisPic uses AI to create header images for substack posts automatically. You just describe what you want in plain English — no technical skills, layers, or brushes required.

Will there be a watermark on my edited photo?

No, EditThisPic never adds watermarks to your photos, even on free edits. The downloaded image is clean and ready to use.

What image formats does this tool support?

EditThisPic accepts JPG, PNG, and WebP images up to 7MB. The edited result is returned in the same format as your upload.

Can I undo the edit if I don't like the result?

Yes, you always keep your original photo. If the result isn't right, you can adjust your prompt and regenerate, or simply download your untouched original.

Does the AI create header images for substack posts work on mobile?

Yes, EditThisPic works fully in your mobile browser — no app download needed. It also has an iOS app available on the App Store.

How do I get better results when I create header images for substack posts?

Be specific in your prompt. Instead of vague descriptions, mention exact colors, materials, styles, or positions. Use markers to point the AI at the exact area you want changed.

Ready to create your photos?

Free to try. No signup required.

Substack Header Image Maker

How it works

Upload your photo

Describe your edit

Review the result

Refine if needed

See it in action

Substack Header Image Maker — Example 1

Substack Header Image Maker — Example 2

If something looks off

Quick answers

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