How to Tell If an AI Image Editor Makes Local Edits or Regenerates the Whole Picture

A guide explains that interface labels alone cannot confirm whether an AI editor preserves original pixels outside the requested change. The recommended approach is a controlled test: apply a small localized edit and closely inspect unselected areas for unintended alterations. This matters most for professional or commercial work, such as product photos or portraits, where logos, text, shapes, colors, or facial features must stay intact. Features like manual masks or preservation prompts suggest localized editing support, but they are indicators rather than guarantees. The article advises comparing exported files side by side, focusing on fine details located far from the edit area.