PdfViewerIsPrintAutoRotate Property Terminal Works - PDF Printing.Net Library
If true, it will automatically adjust printing page orientation (landscape/portrait) as it is no matter what is selected as Page size in the printer dialog. By default it is false.

Namespace: PdfViewerNet
Assembly: PdfPrintingNet (in PdfPrintingNet.dll) Version: 5.2.1.0 (5.2.1.0)
Syntax

public bool IsPrintAutoRotate { get; set; }

Return Value

Type: Boolean
True if auto paper orientation is turned on.
See Also

Reference