The namespace has been changed from PegasusImaging.WinForms.PdfXpressX (where X was 1, 2, or 3) to Accusoft.PdfXpressSdk.
Added new GetAnnotationSubtype method to get the annotation subtype at a specified annotation index from the specified page.
Added new DeleteAnnotation method to delete an annotation at a specified annotation index from the specified page - Professional Edition only
Added exception class AnnotationSubtypeMissingOrInvalidException that is thrown when an annotation dictionary has an invalid (not a name object) or missing /Subtype key