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

1 using System.Diagnostics;

添加引用

2.方法

 1     /// <summary>

 2     /// 把对应的网页转化成Pdf文件  3     /// </summary>

 4     /// <param name="Url">网页网址</param>

 5     /// <param name="Path"></param>

 6     /// <returns>成功返回true失败返回false</returns>

 7     public static bool HtmlTOPdf(string Url, string Path)  8  {  9         if (!string.IsNullOrEmpty(Url)&&!string.IsNullOrEmpty(Path)) 10  { 11             try

12  { 13                 Process p = new Process(); 14                 p.StartInfo.FileName = "cmd.exe"; 15                 p.StartInfo.WorkingDirectory = "C:\\WINDOWS\\system32"; 16                 p.StartInfo.UseShellExecute = false; 17                 p.StartInfo.RedirectStandardInput = true; 18                 p.StartInfo.RedirectStandardOutput = true; 19                 p.StartInfo.RedirectStandardError = true; 20                 p.StartInfo.CreateNoWindow = true; 21  p.Start(); 22                 string cmd = "C:/Users/PC/Desktop/wkhtmltopdf/wkhtmltopdf.exe" + " " + Url + " " + Path + " "; 23  p.StandardInput.WriteLine(cmd); 24                 p.WaitForExit(6000); 25  p.Close(); 26                 return true; 27  } 28             catch (Exception) 29  { 30                 return false; 31  } 32  } 33         else

34  { 35             return false; 36  } 37     }

方法

3.调用

1  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

1 using Winnovative;

添加引用

 1         //create a PDF document

 2         Document document = new Document();

 3 

 4         //optional settings for the PDF document like margins, compression level,

 5         //security options, viewer preferences, document information, etc

 6         document.CompressionLevel = PdfCompressionLevel.Normal;

 7         document.Margins = new Margins(10, 10, 0, 0);

 8         //document.Security.CanPrint = true;

 9         //document.Security.UserPassword = "";

10         document.ViewerPreferences.HideToolbar = false;

11 

12         // set if the images are compressed in PDF with JPEG to reduce the PDF document size

13         document.JpegCompressionEnabled = true;

14 

15         //Add a first page to the document. The next pages will inherit the settings from this page 

16         PdfPage page = document.Pages.AddNewPage(PdfPageSize.A4, new Margins(10, 10, 0, 0), PdfPageOrientation.Portrait);

17 

18         // the code below can be used to create a page with default settings A4, document margins inherited, portrait orientation

19         //PdfPage page = document.Pages.AddNewPage();

20 

21         // add a font to the document that can be used for the texts elements 

22         PdfFont font = document.Fonts.Add(new System.Drawing.Font(new System.Drawing.FontFamily("Times New Roman"), 10,

23                     System.Drawing.GraphicsUnit.Point));

24 

25         // the result of adding an element to a PDF page

26         AddElementResult addResult;

27 

28         // Get the specified location and size of the rendered content

29         // A negative value for width and height means to auto determine

30         // The auto determined width is the available width in the PDF page

31         // and the auto determined height is the height necessary to render all the content

32         float xLocation = 0;

33         float yLocation = 0;

34         float width = 0;

35         float height = 0;

36 

37         // convert HTML to PDF

38         HtmlToPdfElement htmlToPdfElement;

39 

40         // convert a URL to PDF

41         string urlToConvert = "http://www.51cto.com/";

42 

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

44 

45         //optional settings for the HTML to PDF converter

46         htmlToPdfElement.FitWidth = true;//合适的宽度

47         htmlToPdfElement.EmbedFonts = false;//嵌入字体呈现PDF文档中真正的类型

48         htmlToPdfElement.LiveUrlsEnabled = false;//网页链接是否可用

49         htmlToPdfElement.JavaScriptEnabled = true;//在转换期间是否启用JavaScript和其他客户端脚本

50         htmlToPdfElement.PdfBookmarkOptions.HtmlElementSelectors = null;//Bookmark H1 and H2 HTML tags

51 

52         // add theHTML to PDF converter element to page

53         addResult = page.AddElement(htmlToPdfElement);

54 

55         try

56         {

57             // get the PDF document bytes

58             byte[] pdfBytes = document.Save();

59 

60             // send the generated PDF document to client browser

61 

62             // get the object representing the HTTP response to browser

63             HttpResponse httpResponse = HttpContext.Current.Response;

64 

65             // add the Content-Type and Content-Disposition HTTP headers

66             httpResponse.AddHeader("Content-Type", "application/pdf");

67             httpResponse.AddHeader("Content-Disposition", String.Format("attachment; filename=51cto.pdf; size={0}", pdfBytes.Length.ToString()));

68 

69             // write the PDF document bytes as attachment to HTTP response 

70             httpResponse.BinaryWrite(pdfBytes);

71 

72             // Note: it is important to end the response, otherwise the ASP.NET

73             // web page will render its content to PDF document stream

74             httpResponse.End();

75         }

76         finally

77         {

78             // close the PDF document to release the resources

79             document.Close();

80         }     

用wnvhtmltopdf把Html转换成pdf