1
Prepare both images
Choose a source face with a clear view, even lighting, and a neutral or natural expression. The target image should have enough resolution and a face angle that does not hide key features. Crop distractions only when they make the face easier to identify.
2
Upload and match the subject
Add the source and target images, then check that the intended face is selected in each one. For group photos, confirm the correct person before continuing; a mistaken selection can look like a technical failure when the real issue is the input.
3
Generate, inspect, and refine
Run the face-swap process, then inspect the eyes, jawline, hair boundary, skin tone, and background edges at a useful zoom. If the result is weak, replace the least suitable image or improve the crop before trying again.