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　　　　 /// <summary>
        /// 將網頁轉為pdf文件
        /// </summary>
        /// <param name="filePath">文件路徑/目錄</param>
        /// <param name="fileName">文件名</param>
        /// <param name="url">網頁url</param>
        public bool ConvertWebpageToPDF(string filePath, string fileName, string url)
        {
            if (Directory.Exists(filePath) == false)
                Directory.createDirectory(filePath);
            try
            {
                HtmlToPdfDocument htmlToPdfDocument = new HtmlToPdfDocument();
                GlobalSettings globalSettings = new GlobalSettings();
                globalSettings.ProduceOutline = new bool?(true);
                //html網頁內容的寬高
                double width = 100; double.TryParse(txt_width.Text, out width);
                double height = 120; double.TryParse(txt_height.Text, out height);
                //設置pdf寬高
                double proportion = 1.26;
                width /= proportion;
                height = Math.Floor(height / proportion);
                string Width = width.ToString(); string Height = height.ToString();
                globalSettings.PaperSize = new PechkinPaperSize(Width, Height);
                //設置pdf文檔四周空白邊距
                globalSettings.Margins.Top = 0;
                globalSettings.Margins.Right = 0;
                globalSettings.Margins.Bottom = 0;
                globalSettings.Margins.Left = 0;
                globalSettings.Margins.Unit = Unit.Centimeters;
                string pageUrl = url;
                ObjectSettings objectSettings = new ObjectSettings();
                double value = 1;
                objectSettings.HtmlText = string.Empty;
                objectSettings.PageUrl = pageUrl;
                objectSettings.LoadSettings.BlockLocalFileAccess = true;
                objectSettings.LoadSettings.ZoomFactor = new double?(value);
                objectSettings.WebSettings.PrintMediaType = new bool?(true);
                objectSettings.WebSettings.PrintBackground = new bool?(false);
                htmlToPdfDocument.GlobalSettings = globalSettings;
                htmlToPdfDocument.Objects.Add(objectSettings);
                IPechkin pechkin = Factory.create();
                byte[] array = pechkin.Convert(htmlToPdfDocument);
                string path = string.Empty;
                if (array == null)
                {
                    return false;
                }
                path = Path.Combine(filePath, fileName);
                using (FileStream fileStream = new FileStream(path, FileMode.create))
                {
                    fileStream.Write(array, 0, array.Length);
                    fileStream.Flush();
                    fileStream.Close();
                    FileStream fs = new FileStream(path, FileMode.Open);
                    byte[] file = new byte[fs.Length];
                    fs.Read(file, 0, file.Length);
                    fs.Close();
                    return true;
                }
            }
            catch (Exception ex)
            {
                return false;
            }
        }  

public void wkhtmltopdf(string filePath, string fileName, string url)
        {
            Process p = new Process();
            //wkhtmltopdf插件安裝的地址
            string dllstr = AppDomain.CurrentDomain.BaseDirectory + "wkhtmltopdf\\wkhtmltopdf.exe";
            //string dllstr = "C:\\Windows\\System32\\wkhtmltopdf.exe";
            if (System.IO.File.Exists(dllstr))
            {
                string savepath = Path.Combine(filePath, fileName);
                p.StartInfo.FileName = dllstr;
                StringBuilder paramsBuilder = new StringBuilder();
                paramsBuilder.Append("--page-width " + txt_width.Text + "mm ");
                paramsBuilder.Append("--zoom 1.2 ");
                paramsBuilder.Append("--disable-smart-shrinking ");
                paramsBuilder.Append("--page-height " + txt_height.Text + "mm ");
                paramsBuilder.Append("--margin-bottom 0mm ");
                paramsBuilder.Append("--margin-left 0mm ");
                paramsBuilder.Append("--margin-right 0mm ");
                paramsBuilder.Append("--margin-top 0mm ");
                paramsBuilder.AppendFormat("\"{0}\" \"{1}\"", url, savepath);
                p.StartInfo.Arguments = paramsBuilder.ToString();
                //p.StartInfo.Arguments = " \"" + url + "\"  \"" + savepath + "\"";

                p.StartInfo.UseShellexecute = false;
                p.StartInfo.RedirectStandardInput = true;
                p.StartInfo.RedirectStandardOutput = true;
                p.StartInfo.RedirectStandardError = true;
                p.StartInfo.createNoWindow = true;
                p.Start();
                p.WaitForExit();
            }
        }