Returns a Boolean value that indicates whether the annotation has an appearance stream associated with it.
- iOS 11.0+
- macOS 10.4+
- Mac Catalyst 13.0+
YES if the annotation has an appearance stream; otherwise
An appearance stream is a sequence of draw instructions used to render a PDF item. If an appearance stream exists, PDF Kit draws the annotation using the stream, which may override existing set parameters (such as the stroke color set with