The image used if style is ImageOnly or ImageAndText.
Default value is a null reference.
The caller is resposible for disposing the bitmap. You may dispose the bitmap the bitmap after the setter is finished.
In other styles this property has no meaning.
If both a Bitmap and a TopazSignature are provided the TopazSignature will be used only.
SignatureAppearance Class | TallComponents.PDF.Annotations.Widgets Namespace