// Rotate the first page of a document 90 degrees clockwise.
PdfDocument document = new PdfDocument();
PdfPage page = document.AddPage();
page.Rotation = PdfPageRotation.Rotate_90;
document.Save("rotated.pdf");
document.Close();
' Rotate the first page of a document 90 degrees clockwise.Dim document AsNew PdfDocument()
Dim page As PdfPage = document.AddPage()
page.Rotation = PdfPageRotation.Rotate_90
document.Save("rotated.pdf")
document.Close()