AI Add Person to Siblings Photo

How it works

1. 1

   Upload your two photos

   Drop your siblings photo into EditThisPic. Then click '+ Add reference photo' below the prompt to upload a clear photo of the sibling you want to include. Both are needed: the main siblings photo AND a reference image of the person. JPG, PNG, WebP up to 7MB each.

   Expect: Adding one sibling takes 30-45 seconds. Photos with some open space at the edge of the group work best.
2. 2

   Attach the reference photo of the sibling

   Click '+ Add reference photo' and upload a clear photo of the sibling to add. This is the key step — the AI uses it to composite the real person into the siblings photo, preserving their likeness. For a sibling who has passed, use a photo where they look happy and natural; this creates a meaningful record of all the siblings together.

   Tip: A photo from a similar age or era to the siblings photo gives the most natural result — especially important for childhood or older siblings photos.

   Copy one of these to get started:

   Add sibling to photo at the edge of the group add this person standing on the right side next to their sibling, scale to match the others, naturally blended with matching outdoor lighting

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   Add sibling who passed away to siblings photo add this person standing with a gentle, natural expression alongside their siblings, soft lighting to match the indoor scene, naturally blended

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   Add younger sibling to photo add this younger sibling standing in front of the others, scale appropriate for their age, matching the casual outdoor lighting, happy expression

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   Add oldest sibling to photo add this person standing tall at the right end of the sibling group, confident casual stance matching the others, consistent with the warm indoor lighting

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   2 more prompts

   Add half-sibling or step-sibling to photo add this person standing naturally among the group, matching the casual attire and the even outdoor lighting, blended as if they were always part of the photo

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   Add sibling who lives far away to holiday photo add this person standing next to their sibling on the left, wearing festive casual attire matching the holiday scene, warm indoor Christmas lighting

   Copy Try This →
3. 3

   Describe their place among their siblings

   Tell the AI where they belong: 'add this person standing on the right next to the older brother, matching the casual outdoor lighting.' If they have a typical position in sibling photos (eldest in the back, youngest in front), describe it.

   Tip: Reference a sibling already in the photo for scale: 'same height as the woman next to her' or 'slightly taller than the boy on the left.'
4. 4

   Review until it feels complete

   Check that the sibling's scale matches the others, their lighting is consistent, and the edges blend naturally. For memorial or deeply personal photos, take your time — it's okay to refine a few times until it feels right.