利用SelectPdf插件将网页生成PDF

    using SelectPdf;

        /// <summary>
        /// 网页生成PDF
        /// </summary>
        /// <param name="dirPath">保存路径</param>
        private string CreatePdfByUrl(string dirPath)
        {
            var url = Request.Url.Scheme + "://" + Request.Url.Authority;         
            url += "/Study/PrintWebPages/PrintPublic?Id=" + 1;
            string pageUrl = (new Uri(Request.Url, url)).AbsoluteUri;
            SelectPdf.HtmlToPdf converter = new SelectPdf.HtmlToPdf();
            SelectPdf.PdfDocument doc = converter.ConvertUrl(pageUrl);
            string fileName = @dirPath+"HtmlToPdf.pdf" ;
            doc.Save(@fileName);
            doc.Close();
            return fileName;
        }