string customSwitches = string.Format(" --header-html {0} --footer-html {1}   ",

                              Url.Action("PDFHeader", "PDF", new { vinum = VINUM, YEAR="2018" }, "https") ,

                               Url.Action("PDFFooter", "PDF", new { }, "https"));

                    return new ViewAsPdf(res)
                    {
                        PageSize = Size.A4,
                        PageOrientation = Orientation.Portrait,
                        CustomSwitches = customSwitches ,
                         PageMargins = { Left = 20, Bottom = 20, Right = 20, Top = 20 }

                    };