FlattenTransparencyOperation ConvertAnnotations Property. Gets or sets a value indicating whether annotations are to be flattened. ABCpdf .NET PDF Library. From ABCpdf .net previous page next page ConvertAnnotations Property Type Default Value Read Only Description [C#] bool [Visual Basic] Boolean true No Gets or sets a value indicating whether annotations are to be flattened Notes Gets or sets a value indicating whether annotations are to be flattened. Example None. previous page start next page