An AI signature generator is most useful when the job is visual: create a neat mark, compare a few typographic directions, capture a natural freehand stroke, or prepare a transparent asset for a permitted form, letter, slide, profile, mockup, or email graphic. The immediate preview makes decisions about width, slant, weight, and spacing visible before you place the image.
The output is still an image. It does not verify who made it, prove that a person reviewed a document, lock the document against later changes, or record consent and time. Those are process and security properties, not drawing properties. When a recipient requires an electronic signature, use its approved signing flow. When a document has legal, financial, employment, health, property, or identity consequences, ask the responsible organization what method it accepts.