AI Face Swap Photo Guide: How to Do It Well and Legally

To face swap a photo well with AI, use a sharp, front-facing face photo and a target photo where the head is a similar angle, size and lighting; the model replaces the face and blends it into the target's skin tone and light. It is legal and allowed when the face is yours or you have the person's permission. It is not allowed, and often illegal, with minors, in sexual or intimate content of real people, or to deceive people with a public figure's face.

Disclosure: VdoBloom is our platform.

How AI face swap works on a photo

A face swap takes two images:

• Image 1, the face source - the face you want to appear in the result.
• Image 2, the target - the photo that supplies the body, outfit, pose, background and composition.

Older face swap apps cut out the face and warped it onto the target, which is why their results often looked pasted-on. Current tools use image-editing models that redraw the face region so it matches the head angle, lighting direction, skin tone and color grading of the target. That produces a more natural blend, but it also means the face is regenerated, so small details can change.

VdoBloom's Face Swap tab runs on Seedream 4.5 Edit. It takes exactly two photos, face first, target second, with a pre-written instruction that tells the model to keep the target's body, clothing, accessories, pose and perspective unchanged and only replace the face. You can read and edit that instruction before generating.

Step by step: a face swap that looks natural

1. Confirm consent. The tab requires you to tick a box confirming that everyone in both photos is an adult and that you have the right and consent to use the images.
2. Upload the face photo. Face fills a good part of the frame, eyes open, no sunglasses or hands covering it, even light.
3. Upload the target photo. One clearly visible person. The face does not need to be large, but it should not be tiny or blurred.
4. Choose quality. Basic gives 2K output; High gives 4K output. Both cost the same.
5. Optionally edit the instruction. For example, add "keep the target's hairstyle" or "keep the face source's beard".
6. Generate and inspect. Check the jawline, neck join, ears and hairline at full size.

Choosing a good pair of photos

Spend a minute choosing the pair before you spend credits. A quick checklist:

• Same direction of light. If the sun hits the left cheek in the target, pick a face photo lit from the left too.
• Similar head angle. Frontal to frontal, three-quarter to three-quarter. Profile targets are the hardest case.
• Similar expression. A neutral face swaps into most photos; a big laugh only suits photos where laughing makes sense.
• Nothing covering the face in either photo. Hair across one eye, a phone, a mask or a microphone all confuse the model.
• Reasonable resolution. A face source cropped from a tiny group photo will produce a soft, generic face.

If the first result is close but not right, change one variable at a time: first try a different face photo, then adjust the instruction. Changing both at once makes it hard to tell what helped.

Why face swaps look fake, and how to fix it

Almost every bad face swap comes down to a mismatch between the two photos. The model can smooth over small differences but not big ones.

Two more tips: age and body type matter (a face on a very different-looking body reads as odd even if the blend is clean), and expressions should match the scene. A wide grin swapped onto a serious formal photo looks wrong even if technically perfect.

What it costs on VdoBloom

As of September 2026, a face swap in the Face Swap tab is 10 credits per swap, whether you choose Basic (2K) or High (4K). New accounts get 10 free credits, so your first swap is free.

• One swap: 10 credits.
• Five attempts to get a tricky angle right: 50 credits.

If you want to go beyond swapping, for example keeping your face but changing the whole scene, the Image Edit tab is usually a better fit than a swap. We cover that in how to make AI images of yourself.

What is legal and allowed: consent comes first

This section is not optional reading. Face swap tools are the easiest way to make a convincing fake of a real person, and laws have caught up. This is general information, not legal advice; rules differ by country and state.

Clearly fine

• Your own face on a costume, movie-poster or fantasy photo.
• A friend's or partner's face when they asked for it or agreed, for a birthday card or a joke they are in on.
• Actors or models who gave written permission for a project.

Never do this

• Minors. Never swap a child's face into anything. VdoBloom requires you to confirm all people are 18+ and blocks content involving minors.
• Sexual or intimate images of real people without consent. In the US, the TAKE IT DOWN Act, signed in May 2025, makes it a federal crime to knowingly publish non-consensual intimate images, including AI-generated ones, and requires platforms to remove them within 48 hours of a valid request. In England and Wales, creating or requesting a sexually explicit deepfake of an adult without consent became a criminal offence in 2026. Many US states have their own laws too. VdoBloom blocks this content.
• Public figures in deceptive content. Fake endorsements, fake news photos, or anything meant to make people believe a politician, celebrity or business leader did or said something they did not. Beyond platform rules, this can raise defamation, fraud and right-of-publicity claims.
• Anyone's face used to harass, embarrass, scam or impersonate them, including fake dating or social profiles.

Disclose when you share

If a swapped photo could be mistaken for real, say it is AI-edited. In the EU, the AI Act's transparency rules for deepfakes apply from 2 August 2026 and require that such content be disclosed as artificially generated or manipulated, with lighter treatment for obvious satire and art. Platforms such as LinkedIn also ask for disclosure of manipulated media showing a person doing something they did not do.

Photo versus video face swap

This guide is about still photos. Video swaps are harder because the face has to stay stable across hundreds of frames while the head moves and the light changes. If you need moving results, read our explainer on AI face swap video. The same consent rules apply, and matter even more, because video fakes are more convincing.

Frequently asked questions

How do I face swap a photo with AI?

Upload a clear photo of the face you want (image 1) and the photo you want it placed into (image 2), confirm you have consent, and generate. Match head angle and lighting between the two for a natural result.

Is there a free AI face swap for photos?

Many apps offer a few free swaps with watermarks or limits. On VdoBloom a swap is 10 credits, and new accounts get 10 free credits, so the first one costs nothing.

Is AI face swap legal?

Swapping your own face, or someone's face with their permission, is generally legal. Swaps involving minors, non-consensual intimate content, or deceptive use of public figures can be illegal and are blocked on VdoBloom.

Can AI face swap multiple faces in one photo?

The VdoBloom tab swaps one face per run. For group photos, crop to one person, or do one swap at a time using the previous result as the new target.

Why does my face swap look fake?

Usually a lighting, angle or size mismatch between the two photos, or a blurry face source. Match the head angle and light direction and use a sharper face photo.