PdfValidationOperation Doc Property. The Doc object into which the document is read. ABCpdf .NET PDF Library. From ABCpdf .net previous page next page Doc Property Type Default Read Only Description [C#]Doc[Visual Basic]Doc Pdf No The Doc object into which the document is read. Notes This property specifies the target Doc object into which the document is read. If it is null, the Read method returns a new Doc object. Example None. previous page start next page