c# Pdf 转换图片

1，引入  dll

itextsharp.dll、

PDFView.dll、

把   gsdll32.dll   拷贝在项目 bin目录下  ，注意：它不能  直接引用

直接上代码：

 /// <summary>
        /// 将PDF 相应的页转换为图片
        /// </summary>
        /// <param name="strPDFpath">PDF 路径</param>
        /// <param name="Page">需要转换的页页码</param>
        private string GetImage(string strPDFpath, string imgDire, ImageFormat imgeF)
        {
            StringBuilder b = new StringBuilder();

            PdfReader reader = new PdfReader(strPDFpath);
            // 获得文档页数
            int pageCount = reader.NumberOfPages;

            System.IO.MemoryStream Ms = new MemoryStream();

            b = b.AppendLine("<ul style='azimuth:center; list-style-type:none;' >");

            for (int page = 1; page <= pageCount; page++)
            {

                System.Drawing.Image img = PDFView.ConvertPDF.PDFConvert.GetPageFromPDF(strPDFpath, page,90, "", true);

                img.Save(Ms, imgeF);

                Bitmap returnImage = (Bitmap)Bitmap.FromStream(Ms);

                string strImgPath = Request.MapPath("..\\" + imgDire + "\\" + page.ToString("0000") + ".jpg");

                returnImage.Save(strImgPath);

                Ms.Position = 0;


                b = b.AppendLine("<li>  <img src='..\\" + imgDire + "\\" + page.ToString("0000") + ".jpg'  />       </li><span>第" + (page) + "页</span>");
            }

            Ms.Close();
            b = b.AppendLine("</ul>");

            return b.ToString();


        }

ok