Html网页生成Pdf

在http://code.google.com/p/wkhtmltopdf/downloads/list下载安装程序。

1.添加引用

 using System.Diagnostics;

添加引用

2.方法

     /// <summary>
     /// 把对应的网页转化成Pdf文件
     /// </summary>
     /// <param name="Url">网页网址</param>
     /// <param name="Path"></param>
     /// <returns>成功返回true失败返回false</returns>
     public static bool HtmlTOPdf(string Url, string Path)
     {
         if (!string.IsNullOrEmpty(Url)&&!string.IsNullOrEmpty(Path))
         {
             try
             {
                 Process p = new Process();
                 p.StartInfo.FileName = "cmd.exe";
                 p.StartInfo.WorkingDirectory = "C:\\WINDOWS\\system32";
                 p.StartInfo.UseShellExecute = false;
                 p.StartInfo.RedirectStandardInput = true;
                 p.StartInfo.RedirectStandardOutput = true;
                 p.StartInfo.RedirectStandardError = true;
                 p.StartInfo.CreateNoWindow = true;
                 p.Start();
                 string cmd = "C:/Users/PC/Desktop/wkhtmltopdf/wkhtmltopdf.exe" + " " + Url + " " + Path + " ";
                 p.StandardInput.WriteLine(cmd);
                 p.WaitForExit();
                 p.Close();
                 return true;
             }
             catch (Exception)
             {
                 return false;
             }
         }
         else
         {
             return false;
         }
     }

方法

3.调用

  Html2Pdf.HtmlToPdf("http://www.cnblogs.com/", "d:/cnblogs.pdf");

调用

出现的问题：非utf-8编码的网页转换会出现乱码。有人做过测试：http://aiilive.blog.51cto.com/1925756/1340243

在网上找了一些其他的转换方法：

http://www.html-to-pdf.net/ 也不支持非utf-8的网页转换，测试网站 http://www.51cto.com/ 转换乱码

http://www.winnovative-software.com/ 测试成功

下面是代码：

需要添加wnvhtmltopdf.dll

 using Winnovative;

添加引用

         //create a PDF document
         Document document = new Document();

         //optional settings for the PDF document like margins, compression level,
         //security options, viewer preferences, document information, etc
         document.CompressionLevel = PdfCompressionLevel.Normal;
         document.Margins = new Margins(, , , );
         //document.Security.CanPrint = true;
         //document.Security.UserPassword = "";
         document.ViewerPreferences.HideToolbar = false;

         // set if the images are compressed in PDF with JPEG to reduce the PDF document size
         document.JpegCompressionEnabled = true;

         //Add a first page to the document. The next pages will inherit the settings from this page
         PdfPage page = document.Pages.AddNewPage(PdfPageSize.A4, new Margins(, , , ), PdfPageOrientation.Portrait);

         // the code below can be used to create a page with default settings A4, document margins inherited, portrait orientation
         //PdfPage page = document.Pages.AddNewPage();

         // add a font to the document that can be used for the texts elements
         PdfFont font = document.Fonts.Add(new System.Drawing.Font(new System.Drawing.FontFamily("Times New Roman"), ,
                     System.Drawing.GraphicsUnit.Point));

         // the result of adding an element to a PDF page
         AddElementResult addResult;

         // Get the specified location and size of the rendered content
         // A negative value for width and height means to auto determine
         // The auto determined width is the available width in the PDF page
         // and the auto determined height is the height necessary to render all the content
         float xLocation = ;
         float yLocation = ;
         float width = ;
         float height = ;

         // convert HTML to PDF
         HtmlToPdfElement htmlToPdfElement;

         // convert a URL to PDF
         string urlToConvert = "http://www.51cto.com/";

         htmlToPdfElement = new HtmlToPdfElement(xLocation, yLocation, width, height, urlToConvert);

         //optional settings for the HTML to PDF converter
         htmlToPdfElement.FitWidth = true;//合适的宽度
         htmlToPdfElement.EmbedFonts = false;//嵌入字体呈现PDF文档中真正的类型
         htmlToPdfElement.LiveUrlsEnabled = false;//网页链接是否可用
         htmlToPdfElement.JavaScriptEnabled = true;//在转换期间是否启用JavaScript和其他客户端脚本
         htmlToPdfElement.PdfBookmarkOptions.HtmlElementSelectors = null;//Bookmark H1 and H2 HTML tags

         // add theHTML to PDF converter element to page
         addResult = page.AddElement(htmlToPdfElement);

         try
         {
             // get the PDF document bytes
             byte[] pdfBytes = document.Save();

             // send the generated PDF document to client browser

             // get the object representing the HTTP response to browser
             HttpResponse httpResponse = HttpContext.Current.Response;

             // add the Content-Type and Content-Disposition HTTP headers
             httpResponse.AddHeader("Content-Type", "application/pdf");
             httpResponse.AddHeader("Content-Disposition", String.Format("attachment; filename=51cto.pdf; size={0}", pdfBytes.Length.ToString()));

             // write the PDF document bytes as attachment to HTTP response
             httpResponse.BinaryWrite(pdfBytes);

             // Note: it is important to end the response, otherwise the ASP.NET
             // web page will render its content to PDF document stream
             httpResponse.End();
         }
         finally
         {
             // close the PDF document to release the resources
             document.Close();
         }     

用wnvhtmltopdf把Html转换成pdf