public PdfDocument();
  public PdfDocument(string filename);
  public PdfDocument(byte[] bytes);
  public PdfDocument(Stream stream);
  public PdfDocument(string filename, string password);
  public PdfDocument(byte[] bytes, string password);
  public PdfDocument(Stream stream, string password);

 public void LoadFromHTML(string Url, bool enableJavaScript, bool enableHyperlinks, bool autoDetectPageBreak)
{
  // This item is obfuscated and can not be translated.
  PdfHtmlLayoutFormat format;
  int num;
  goto Label_001E;
Label_008F:
  num = 0;
Label_0002:
  switch (num)
  {
    case 0:
      break;

    case 1:
      if (!autoDetectPageBreak)
      {
        format.Layout = PdfLayoutType.OnePage;
        format.FitToPage = Clip.Width;
        format.FitToHtml = Clip.Height;
        num = 2;
      }
      else
      {
        num = 3;
      }
      goto Label_0002;

    case 2:
      switch ((1 == 1))
      {
        case 2:
          goto Label_008F;
      }
      if (0 != 0)
      {
      }
      break;

    case 3:
      format.Layout = PdfLayoutType.Paginate;
      format.FitToPage = Clip.Width;
      goto Label_008F;

    default:
      goto Label_001E;
      if (1 != 0)
      {
      }
      format = new PdfHtmlLayoutFormat();
      num = 1;
      goto Label_0002;
  }
  this.Sections.Add().LoadFromHTML(Url, enableJavaScript, enableHyperlinks, format);
}

namespace Spire.Pdf.HtmlConverter
{
  public enum AspectRatio

  public enum Clip

  [ToolboxItem(false)]
  public class HtmlConverter : UserControl, sprᰐ, sprᶪ, sprṳ, sprẝ, sprẏ

  public enum ImageType

  public class PdfHtmlLayoutFormat
}

private Metafile ();
  static HtmlConverter();
  public HtmlConverter();
  public int Authenticate(ref IntPtr phwnd, ref IntPtr pszUsername, ref IntPtr pszPassword);
  public HtmlToPdfResult Convert(string url, ImageType type, int width, int height, AspectRatio aspectRatio);
  public HtmlToPdfResult Convert(string html, string baseurl, ImageType type, int width, int height, AspectRatio aspectRatio);
  public HtmlToPdfResult Convert(string url, ImageType type, int width, int height, AspectRatio aspectRatio, string username, string password);
  public Image ConvertToImage(string url, ImageType type);
  public Image ConvertToImage(Stream stream, Encoding encoding, ImageType type);
  public Image ConvertToImage(string url, ImageType type, int width);
  public Image ConvertToImage(Stream stream, Encoding encoding, ImageType type, int width);
  public Image ConvertToImage(string url, ImageType type, int width, int height);
  public Image ConvertToImage(string url, ImageType type, string username, string password);
  public Image ConvertToImage(Stream stream, Encoding encoding, ImageType type, int width, int height);
  public Image ConvertToImage(string url, ImageType type, int width, int height, AspectRatio aspectRatio);
  public Image ConvertToImage(string url, ImageType type, int width, string username, string password);
  public Image ConvertToImage(Stream stream, Encoding encoding, ImageType type, int width, int height, AspectRatio aspectRatio);
  public Image ConvertToImage(string url, ImageType type, int width, int height, string username, string password);
  public Image ConvertToImage(string url, ImageType type, int width, int height, AspectRatio aspectRatio, string username, string password);
  [DispId(-5512)]
  public int CustomizeDownload();
  protected override void Dispose(bool disposing);
  public Image FromString(string html, ImageType type, int width);
  public Image FromString(string html, string baseUrl, ImageType type);
  public Image FromString(string html, ImageType type, int width, int height);
  public Image FromString(string html, string baseUrl, ImageType type, int width);
  public Image FromString(string html, ImageType type, int width, int height, AspectRatio aspectRatio);
  public Image FromString(string html, string baseUrl, ImageType type, int width, int height);
  public Image FromString(string html, string baseUrl, ImageType type, int width, int height, AspectRatio aspectRatio);
  public Image FromString(string html, string baseUrl, ImageType type, int width, int height, AspectRatio aspectRatio, string username, string password);
  public Image[] GetImagesFromString(string html, string baseUrl, ImageType type);
  public int QueryService(ref Guid guidService, ref Guid riid, out IntPtr ppvObject);int sprẏ.GetSecurityId(string pwszUrl, IntPtr pbSecurityId, ref uint pcbSecurityId, ref uint dwReserved);
  int sprẏ.GetSecuritySite(out IntPtr pSite);
  int sprẏ.GetZoneMappings(uint dwZone, out IEnumString ppenumString, uint dwFlags);
  int sprẏ.MapUrlToZone(string pwszUrl, out uint pdwZone, uint dwFlags);
  int sprẏ.ProcessUrlAction(string pwszUrl, uint dwAction, IntPtr pPolicy, uint cbPolicy, IntPtr pContext, uint cbContext, uint dwFlags, uint dwReserved);
  int sprẏ.QueryCustomPolicy(string pwszUrl, ref Guid guidKey, out IntPtr ppPolicy, out uint pcbPolicy, IntPtr pContext, uint cbContext, uint dwReserved);
  int sprẏ.SetSecuritySite(IntPtr pSite);
  int sprẏ.SetZoneMapping(uint dwZone, string lpszPattern, uint dwFlags);
  int sprᶪ.GetContainer(object ppContainer);
  int sprᶪ.GetMoniker(uint dwAssign, uint dwWhichMoniker, object ppmk);
  int sprᶪ.OnShowWindow(bool fShow);
  int sprᶪ.RequestNewObjectLayout();
  int sprᶪ.SaveObject();
  int sprᶪ.ShowObject();

/// <summary>
    /// 指定路径发送GET请求
    /// </summary>
    /// <param name="getUrl"></param>
    /// <returns></returns>
    public static string HttpGet(string getUrl)
    {
      try
      {
        if (string.IsNullOrEmpty(getUrl))
          throw new ArgumentNullException(getUrl);
        var request = WebRequest.Create(getUrl) as HttpWebRequest;
        if (request == null)
          return null;
        var cookieContainer = new CookieContainer();
        request.CookieContainer = cookieContainer;
        request.AllowAutoRedirect = true;
        request.Method = "GET";
        request.ContentType = "application/x-www-form-urlencoded";
        var response = request.GetResponse() as HttpWebResponse;
        if (response != null)
        {
          var instream = response.GetResponseStream();
          if (instream == null)
            throw new ArgumentNullException("getUrl");
          string content;
          using (var sr = new StreamReader(instream, Encoding.UTF8))
          {
            content = sr.ReadToEnd();
          }
          return content;
        }
      }
      catch (Exception er)
      {
        throw new Exception(er.Message);
      }
      return null;
    }

/// <summary>  
    /// 取得HTML中所有图片的 URL。  
    /// </summary>  
    /// <param name="url">HTML代码</param>
    /// <returns>图片的URL列表</returns> 
    public static string HtmlCodeRequest(string url)
    {
      if (string.IsNullOrEmpty(url))
      {
        throw new ArgumentNullException(url);
      }
      try
      {
        //创建一个请求
        var httprequst = (HttpWebRequest)WebRequest.Create(url);
        //不建立持久性链接
        httprequst.KeepAlive = true;
        //设置请求的方法
        httprequst.Method = "GET";
        //设置标头值
        httprequst.UserAgent = "User-Agent:Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705";
        httprequst.Accept = "*/*";
        httprequst.Headers.Add("Accept-Language", "zh-cn,en-us;q=0.5");
        httprequst.ServicePoint.Expect100Continue = false;
        httprequst.Timeout = 5000;
        //是否允许302
        httprequst.AllowAutoRedirect = true;
        ServicePointManager.DefaultConnectionLimit = 30;
        //获取响应
        var webRes = (HttpWebResponse)httprequst.GetResponse();
        //获取响应的文本流
        string content;
        using (var stream = webRes.GetResponseStream())
        {
          using (var reader = new StreamReader(stream, Encoding.GetEncoding("utf-8")))
          {
            content = reader.ReadToEnd();
          }
        }
        //取消请求
        httprequst.Abort();
        //返回数据内容
        return content;
      }
      catch (Exception ex)
      {
        throw new Exception(ex.Message);
      }
    }

PdfDocument doc = new PdfDocument();

      doc.LoadFromHTML(url, false, true, true);

      doc.Close();

HtmlConverter.Convert
("http://www.wikipedia.org/","HTMLtoPDF.pdf",
 //enable javascript 
 true,
 //load timeout
* 1000,
//page size
new SizeF(612, 792),
//page margins
new PdfMargins(0, 0));

 public static void TextLayout()
    {
      //Create a pdf document.
      PdfDocument doc = new PdfDocument();

      // Create one page
      PdfPageBase page = doc.Pages.Add();
      float pageWidth = page.Canvas.ClientSize.Width;
      float y = 0;

      //page header
      PdfPen pen1 = new PdfPen(Color.LightGray, 1f);
      PdfBrush brush1 = new PdfSolidBrush(Color.LightGray);
      PdfTrueTypeFont font1 = new PdfTrueTypeFont(new Font("Arial", 8f, FontStyle.Italic));
      PdfStringFormat format1 = new PdfStringFormat(PdfTextAlignment.Right);
      String text = "Demo of Spire.Pdf";
      page.Canvas.DrawString(text, font1, brush1, pageWidth, y, format1);
      SizeF size = font1.MeasureString(text, format1);
      y = y + size.Height + 1;
      page.Canvas.DrawLine(pen1, 0, y, pageWidth, y);

      //title
      y = y + 5;
      PdfBrush brush2 = new PdfSolidBrush(Color.Black);
      PdfTrueTypeFont font2 = new PdfTrueTypeFont(new Font("Arial", 16f, FontStyle.Bold));
      PdfStringFormat format2 = new PdfStringFormat(PdfTextAlignment.Center);
      format2.CharacterSpacing = 1f;
      text = "Summary of Science";
      page.Canvas.DrawString(text, font2, brush2, pageWidth / 2, y, format2);
      size = font2.MeasureString(text, format2);
      y = y + size.Height + 6;

      //icon
      PdfImage image = PdfImage.FromFile(@"..\..\..\..\..\..\Data\Wikipedia_Science.png");
      page.Canvas.DrawImage(image, new PointF(pageWidth - image.PhysicalDimension.Width, y));
      float imageLeftSpace = pageWidth - image.PhysicalDimension.Width - 2;
      float imageBottom = image.PhysicalDimension.Height + y;

      //refenrence content
      PdfTrueTypeFont font3 = new PdfTrueTypeFont(new Font("Arial", 9f));
      PdfStringFormat format3 = new PdfStringFormat();
      format3.ParagraphIndent = font3.Size * 2;
      format3.MeasureTrailingSpaces = true;
      format3.LineSpacing = font3.Size * 1.5f;
      String text1 = "(All text and picture from ";
      String text2 = "Wikipedia";
      String text3 = ", the free encyclopedia)";
      page.Canvas.DrawString(text1, font3, brush2, 0, y, format3);

      size = font3.MeasureString(text1, format3);
      float x1 = size.Width;
      format3.ParagraphIndent = 0;
      PdfTrueTypeFont font4 = new PdfTrueTypeFont(new Font("Arial", 9f, FontStyle.Underline));
      PdfBrush brush3 = PdfBrushes.Blue;
      page.Canvas.DrawString(text2, font4, brush3, x1, y, format3);
      size = font4.MeasureString(text2, format3);
      x1 = x1 + size.Width;

      page.Canvas.DrawString(text3, font3, brush2, x1, y, format3);
      y = y + size.Height;

      //content
      PdfStringFormat format4 = new PdfStringFormat();
      text = System.IO.File.ReadAllText(@"..\..\..\..\..\..\Data\Summary_of_Science.txt");
      PdfTrueTypeFont font5 = new PdfTrueTypeFont(new Font("Arial", 10f));
      format4.LineSpacing = font5.Size * 1.5f;
      PdfStringLayouter textLayouter = new PdfStringLayouter();
      float imageLeftBlockHeight = imageBottom - y;
      PdfStringLayoutResult result
        = textLayouter.Layout(text, font5, format4, new SizeF(imageLeftSpace, imageLeftBlockHeight));
      if (result.ActualSize.Height < imageBottom - y)
      {
        imageLeftBlockHeight = imageLeftBlockHeight + result.LineHeight;
        result = textLayouter.Layout(text, font5, format4, new SizeF(imageLeftSpace, imageLeftBlockHeight));
      }
      foreach (LineInfo line in result.Lines)
      {
        page.Canvas.DrawString(line.Text, font5, brush2, 0, y, format4);
        y = y + result.LineHeight;
      }
      PdfTextWidget textWidget = new PdfTextWidget(result.Remainder, font5, brush2);
      PdfTextLayout textLayout = new PdfTextLayout();
      textLayout.Break = PdfLayoutBreakType.FitPage;
      textLayout.Layout = PdfLayoutType.Paginate;
      RectangleF bounds = new RectangleF(new PointF(0, y), page.Canvas.ClientSize);
      textWidget.StringFormat = format4;
      textWidget.Draw(page, bounds, textLayout);

      //Save pdf file.
      doc.SaveToFile("TextLayout.pdf");
      doc.Close();

      //Launching the Pdf file.
      PDFDocumentViewer("TextLayout.pdf");
    }

public void XPStoPDF()
    {
      //xps file
      String file = @"..\..\..\..\..\..\Data\Sample4.xps";

      //open xps document
      PdfDocument doc = new PdfDocument();
      doc.LoadFromXPS(file);

      //convert to pdf file.
      doc.SaveToFile("Sample4.pdf");
      doc.Close();

      //Launching the Pdf file.
      PDFDocumentViewer("Sample4.pdf");
    }

 public void ImageToPdf()
    {
      //Create a pdf document.
      PdfDocument doc = new PdfDocument();

      // Create one page
      PdfPageBase page = doc.Pages.Add();

      //Draw the text
      page.Canvas.DrawString("Hello, World!",
                  new PdfFont(PdfFontFamily.Helvetica, 30f),
                  new PdfSolidBrush(Color.Black),
                  10, 10);
      //Draw the image
      PdfImage image = PdfImage.FromFile(@"..\..\..\..\..\..\Data\SalesReportChart.png");
      float width = image.Width * 0.75f;
      float height = image.Height * 0.75f;
      float x = (page.Canvas.ClientSize.Width - width) / 2;

      page.Canvas.DrawImage(image, x, 60, width, height);

      //Save pdf file.
      doc.SaveToFile("Image.pdf");
      doc.Close();

      //Launching the Pdf file.
      PDFDocumentViewer("Image.pdf");
    }