Encoding issue while generating PDF with help of NRECO

Question

I am genrateting pdf from HTML in MVC Action.

var htmlToPdf = new HtmlToPdfConverter();
        var margins = new PageMargins(); ;
        margins.Bottom = this.Bottom;
        margins.Top = this.Top;
        margins.Left = this.Left;
        margins.Right = this.Right;
        htmlToPdf.Margins = margins;
        htmlToPdf.PageWidth = this.PageWidth;
        htmlToPdf.PageHeight = this.PageHeight;
            return htmlToPdf.GeneratePdf(htmlContent, null);

i am passing "-"  in html.

so my orginal string is gio n / C o u n t r y p o sitio nin g â € “ J u n e 3 0, 2 0 1 7

Region – June 30, 2017

after converting to pdf it is changed to

Region †June 30, 2017

How can i resolve this issue?

Thanks in advance