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What is Multi Image Face Swap?

Multi Image Face Swap is an AI photo tool for group images where more than one visible face may need a separate replacement portrait.

Start from one source photo with multiple people

Upload the group photo that should keep its body poses, outfits, background, lighting, and framing. PopcornAI detects visible faces in that image before you choose replacements.

Map replacements face by face

After detection, each face card can receive its own portrait. You can replace one person, several selected people, or apply the same portrait to every detected face when that matches the task.

Review identity-sensitive edits before sharing

Group face swaps should be used with consent from the people represented. Check every changed face for artifacts and avoid using the result to impersonate, mislead, or place someone into a sensitive context.

See the full multi-face swap workflow

This example shows the complete input-to-output relationship: a source group photo keeps the scene, replacement portraits provide the new faces, and the output image keeps the same group composition while changing the selected people. Results vary with face size, angle, lighting, and how clearly each person appears.

Try a group face swap

Complete multi image face swap example showing a source group photo, two replacement face portraits, and an output photo with selected faces changed

How face mapping works in a group photo

This workflow separates source detection from replacement selection, so you can decide exactly which detected face should change.

Stage	What happens	Your decision
Target group photo	The uploaded image provides the final scene: people positions, body pose, outfits, background, camera angle, and lighting.	Use a clear group photo where each face you want to edit is visible enough to inspect.
Face detection	PopcornAI scans the source photo and returns face cards for the visible faces it can detect.	Confirm the detected face cards match the people you intend to change before uploading replacement portraits.
Replacement portraits	Each face card can receive a separate portrait, or one portrait can be applied to every detected face.	Upload one clear face image per person when identities should be different. Leave a face unmapped if it should stay unchanged.
Final image review	The generated image keeps the original group photo as the base while replacing the selected faces.	Inspect every changed face for edge artifacts, skin tone mismatch, expression issues, and consent before downloading or sharing.

When should you use group photo face swap?

Use this tool when the hard part is choosing who changes in a multi-person still image, not rewriting the whole scene.

Task	Why this tool fits	Watch out for
Group photo edit	Replace one or more people in a team photo, family-style image, event photo, or staged scene while keeping the original group composition.	Tiny faces, motion blur, people turned away from camera, and faces partly hidden by hair, hands, hats, or shadows.
Cast and character mockup	Preview different faces in an existing group scene without rebuilding the outfits, camera framing, or background from scratch.	Replacement portraits with very different head angles, expressions, lighting direction, or image quality.
Private social creative	Make consent-based group swaps for internal drafts, parody images, party edits, or visual experiments where everyone involved understands the edit.	Sharing a result as if it were a real photo, using someone's likeness without permission, or placing real people into sensitive contexts.
One-face edit in a crowded image	When a photo contains several faces but only one person should change, the detection step helps you target the intended face instead of guessing.	Similar-looking faces or low-resolution crops can make review more important before generation.

Workflow

How to swap faces in a group photo

The workspace is built around a detect-then-map flow: upload the group photo, detect visible faces, assign replacements, then generate the final image.

1. Upload the group photo

Choose the image that should remain the base scene. Keep the people, background, pose, and lighting you want in the final result.

2. Detect visible faces

Run face detection so the workspace can show a card for each detected face in the source image.

3. Add replacement portraits

Upload one clear face portrait for each detected person you want to replace. Use Apply one face to all only when every detected face should use the same portrait.

4. Generate and review every face

Create the task, then review the result in history. Check each changed face separately before using the image.

Input checks for cleaner multi-face swaps

Group photos are less forgiving than single portraits because every selected face must be detected, mapped, and blended in the same scene.

Input	Works best	Avoid
Group photo	Medium or close group framing, visible facial landmarks, stable lighting across the scene, and enough resolution to inspect each person.	Very wide crowd shots, heavy motion blur, faces smaller than a thumbnail, extreme side profiles, harsh shadows, or faces cropped by the image edge.
Detected faces	Face cards that clearly correspond to the people you want to change, with no duplicate or irrelevant detections selected by mistake.	Generating before checking which face card belongs to which person, especially when people look similar or overlap in the photo.
Replacement portraits	One face per portrait, clear eyes, natural expression, similar head angle, and lighting close to the source photo.	Screenshots, filters, sunglasses, masks, low-resolution crops, group portraits, strong beauty effects, or portraits with very different lighting.
Final review	Check every edited face for alignment, jaw shape, hairline edges, skin tone, expression, and whether the whole group image still feels coherent.	Approving the image after looking at only one changed face, or sharing edits without clear permission from the people represented.

How to fix common group face swap problems

When a group swap looks wrong, isolate the issue: detection, face mapping, replacement portrait quality, or source photo quality.

Problem	Likely cause	Try this next
A face you need does not appear after detection	The face may be too small, blurred, turned away, covered, cut off, or hidden in uneven lighting.	Use a clearer group photo or crop closer around the people you want to edit before uploading again.
The wrong person changes	A replacement portrait was assigned to the wrong detected face card, or similar faces made the mapping easy to misread.	Clear the mapped portrait, compare the face cards again, and upload the replacement only on the intended person's card.
One replaced face looks less natural than the others	That replacement portrait may have a different angle, expression, lighting direction, or resolution from the group photo.	Keep the source group photo and swap only that replacement portrait for a clearer, closer-angle face image.
The whole result feels inconsistent	The group photo may have mixed lighting, heavy compression, or too many small faces for a clean blend.	Choose a higher-resolution source image with fewer faces, closer framing, and more even light.

Limits, consent, and when to choose another tool

Multi Image Face Swap is for selected face replacement in still images. It is not a tool for impersonation, hidden identity use, or full-scene image redesign.

Situation	Use this instead	Why
Only one clear person appears in the photo	Single Image Face Swap	A single-face workflow is simpler when there is one primary face and one replacement portrait.
The source media is a video	Single Video Face Swap or Multi Video Face Swap	Video workflows track faces across frames. A still image tool only edits one photo.
You want to change clothing, background, pose, or art style	Image to Image AI	Face swap keeps the source photo as the base. Use image generation or editing when the whole scene should change.
You do not have permission to use someone's likeness	Do not generate or share the swap	Use face swap only with appropriate rights and consent. Do not impersonate people or mislead viewers about what is real.

Multi Image Face Swap FAQ

Common questions about using PopcornAI to replace selected faces in a group photo.

Can I use Multi Image Face Swap before signing in?

You can read the guide and prepare your group photo before signing in. Running face detection or generating the final swap requires signing in so PopcornAI can manage uploads, credits, and history.

What is the difference between Single Image Face Swap and Multi Image Face Swap?

Single Image Face Swap is for one primary face in one photo. Multi Image Face Swap is for group photos where the workspace detects visible faces and lets you choose which detected people receive replacement portraits.

Do I have to replace every detected face?

No. Upload replacement portraits only for the detected faces you want to change. Faces without a mapped replacement are not part of the selected face map.

Can I use the same replacement face for everyone?

Yes, the workspace includes an Apply one face to all option after detection. Use it only when every detected face should receive the same replacement portrait.

What files can I upload?

Use image files for the group photo and replacement portraits. The current image uploader accepts image files up to 20MB, and original high-resolution photos usually work better than compressed screenshots.

How many credits does one multi image face swap use?

The workspace shows the estimated cost before generation. A Multi Image Face Swap task currently uses 8 credits.

Why did face detection miss someone?

Detection can miss faces that are tiny, blurred, turned away, covered, cut off, or poorly lit. Try a higher-resolution group photo or a closer crop where the target faces are easier to see.

Why does one swapped face look worse than the others?

That face usually has a weaker input match. Try changing only that replacement portrait first, using a clearer image with a similar head angle, expression, and lighting direction.

Can I use this for celebrities or people who did not consent?

Only use images and likenesses when you have the right to use them. Do not create face swaps that impersonate someone, mislead viewers, or place a real person into a sensitive context without consent.

Can I swap faces in a group video?

Use Multi Video Face Swap for video sources. It is designed for detecting face tracks across video frames instead of editing one still image.