(Optional; PDF 1.2) An appearance dictionary specifying how the annotation
            is presented visually on the page. Individual annotation handlers may ignore
            this entry and provide their own appearances.
            
Namespace: PdfEdit.Pdf.Annotations
Assembly: PdfPrintingNet (in PdfPrintingNet.dll) Version: 5.1.1.0 (5.1.1.0)
Syntax
Field Value
Type: StringSee Also