//Set rotation angle
doc.PageSettings.Rotate = PdfPageRotateAngle.RotateAngle180;
Please let us know if you need any further assistance.
We are glad to inform you that rotation support is added in Essential PDF for WinRT platform in the upcoming release, which is expected to be rolled out within end of this week. Please let us know if you have any other queries.
PdfGraphics g = lPage.Graphics;
PdfGraphicsState state = g.Save();
g.RotateTransform(-40); //Rotation of text not implemented yet.
g.DrawString("Imported using Essential PDF", font, PdfPens.Red, PdfBrushes.Red, new PointF(50,g.ClientSize.Height/2));