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);

該類提供了7個構(gòu)造函數(shù)的重載版本，對應(yīng)的參數(shù)類型就不做詳細(xì)的介紹

{
    // 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);
}

{    public enum AspectRatio    public enum Clip
    [ToolboxItem(false)]    public class HtmlConverter : UserControl, sprᰐ, sprᶪ, sprṳ, sprẝ, sprẏ    public enum ImageType    public class PdfHtmlLayoutFormat
}

    [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();

        /// 指定路徑發(fā)送GET請求        /// </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;
        }

        /// 取得HTML中所有圖片的 URL。   
        /// </summary>   
        /// <param name="url">HTML代碼</param>
        /// <returns>圖片的URL列表</returns> 
        public static string HtmlCodeRequest(string url)
        {            if (string.IsNullOrEmpty(url))
            {                throw new ArgumentNullException(url);
            }            try
            {                //創(chuàng)建一個請求
                var httprequst = (HttpWebRequest)WebRequest.Create(url);                //不建立持久性鏈接
                httprequst.KeepAlive = true;                //設(shè)置請求的方法
                httprequst.Method = "GET";                //設(shè)置標(biāo)頭值
                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;                //是否允許302
                httprequst.AllowAutoRedirect = true;
                ServicePointManager.DefaultConnectionLimit = 30;                //獲取響應(yīng)
                var webRes = (HttpWebResponse)httprequst.GetResponse();                //獲取響應(yīng)的文本流
                string content;                using (var stream = webRes.GetResponseStream())
                {                    using (var reader = new StreamReader(stream, Encoding.GetEncoding("utf-8")))
                    {
                        content = reader.ReadToEnd();
                    }
                }                //取消請求                httprequst.Abort();                //返回數(shù)據(jù)內(nèi)容
                return content;
            }            catch (Exception ex)
            {                throw new Exception(ex.Message);
            }
        }

            doc.LoadFromHTML(url, false, true, true);
            doc.Close();
以上沒有將操作組裝為一個方法，由于創(chuàng)建操作較為簡單，所以不做詳細(xì)介紹，url為網(wǎng)頁路徑地址。

("http://www.wikipedia.org/","HTMLtoPDF.pdf", //enable javascript 
 true, //load timeout100 * 1000,//page sizenew SizeF(612, 792),//page marginsnew PdfMargins(0, 0));

        {            //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");
        }

        {            //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");
        }

        {            //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");
        }