The PdfDocumentSigner type exposes the following members.
Gets or sets the form object for the document. By default, this is null.
Gets the signature information about the document signatures as the result of opening the document.
Gets the pages of annotations within the PDF document. This is a read-only collection and can't be modified. Each element represents a page in the document in order. If a page has no annotations, it will contain an empty collection. If a document disallows adding or removing annotations, each collection will be a read- only collection.
Gets or sets the global resources.