我想通过将HTML内容传递给函数来生成PDF。我已经为此使用了iTextSharp,但它在遇到表和布局时表现不佳。

有没有更好的办法?


当前回答

与Winnovative HTML到PDF转换器,您可以转换HTML字符串在单行

byte[] outPdfBuffer = htmlToPdfConverter.ConvertHtml(htmlString, baseUrl);

基URL用于解析HTML字符串中相对URL引用的图像。另外,你也可以在HTML中使用完整的url,或者使用src="data:image/png"作为图像标签嵌入图像。

在回答'fubaar'用户对Winnovative转换器的评论时,有必要进行更正。转换器不使用IE作为渲染引擎。它实际上不依赖于任何安装的软件,并且渲染与WebKit引擎兼容。

其他回答

最好的工具,我发现和用于生成javascript和样式渲染视图或html页面的PDF是phantomJS。

下载带有rasterize.js函数的.exe文件,在示例文件夹的exe根目录下找到,并放入解决方案。

它甚至允许你下载文件在任何代码,而不打开该文件,它也允许下载文件时,风格和特别是jquery应用。

以下代码生成PDF文件:

public ActionResult DownloadHighChartHtml()
{
    string serverPath = Server.MapPath("~/phantomjs/");
    string filename = DateTime.Now.ToString("ddMMyyyy_hhmmss") + ".pdf";
    string Url = "http://wwwabc.com";

    new Thread(new ParameterizedThreadStart(x =>
    {
        ExecuteCommand(string.Format("cd {0} & E: & phantomjs rasterize.js {1} {2} \"A4\"", serverPath, Url, filename));
                           //E: is the drive for server.mappath
    })).Start();

    var filePath = Path.Combine(Server.MapPath("~/phantomjs/"), filename);

    var stream = new MemoryStream();
    byte[] bytes = DoWhile(filePath);

    Response.ContentType = "application/pdf";
    Response.AddHeader("content-disposition", "attachment;filename=Image.pdf");
    Response.OutputStream.Write(bytes, 0, bytes.Length);
    Response.End();
    return RedirectToAction("HighChart");
}



private void ExecuteCommand(string Command)
{
    try
    {
        ProcessStartInfo ProcessInfo;
        Process Process;

        ProcessInfo = new ProcessStartInfo("cmd.exe", "/K " + Command);

        ProcessInfo.CreateNoWindow = true;
        ProcessInfo.UseShellExecute = false;

        Process = Process.Start(ProcessInfo);
    }
    catch { }
}


private byte[] DoWhile(string filePath)
{
    byte[] bytes = new byte[0];
    bool fail = true;

    while (fail)
    {
        try
        {
            using (FileStream file = new FileStream(filePath, FileMode.Open, FileAccess.Read))
            {
                bytes = new byte[file.Length];
                file.Read(bytes, 0, (int)file.Length);
            }

            fail = false;
        }
        catch
        {
            Thread.Sleep(1000);
        }
    }

    System.IO.File.Delete(filePath);
    return bytes;
}

最后更新:2020年10月

这是我整理的。net中HTML到PDF转换的选项列表(有些是免费的,有些是付费的)

GemBox.Document https://www.nuget.org/packages/GemBox.Document/ Free (up to 20 paragraphs) $680 - https://www.gemboxsoftware.com/document/pricelist https://www.gemboxsoftware.com/document/examples/c-sharp-convert-html-to-pdf/307 PDF Metamorphosis .Net https://www.nuget.org/packages/sautinsoft.pdfmetamorphosis/ $539 - $1078 - https://www.sautinsoft.com/products/pdf-metamorphosis/order.php https://www.sautinsoft.com/products/pdf-metamorphosis/convert-html-to-pdf-dotnet-csharp.php HtmlRenderer.PdfSharp https://www.nuget.org/packages/HtmlRenderer.PdfSharp/1.5.1-beta1 BSD-UNSPECIFIED License PuppeteerSharp https://www.puppeteersharp.com/examples/index.html MIT License https://github.com/kblok/puppeteer-sharp EO.Pdf https://www.nuget.org/packages/EO.Pdf/ $799 - https://www.essentialobjects.com/Purchase.aspx?f=3 WnvHtmlToPdf_x64 https://www.nuget.org/packages/WnvHtmlToPdf_x64/ $750 - $1600 - http://www.winnovative-software.com/Buy.aspx demo - http://www.winnovative-software.com/demo/default.aspx IronPdf https://www.nuget.org/packages/IronPdf/ $399 - $1599 - https://ironpdf.com/licensing/ https://ironpdf.com/examples/using-html-to-create-a-pdf/ Spire.PDF https://www.nuget.org/packages/Spire.PDF/ Free (up to 10 pages) $599 - $1799 - https://www.e-iceblue.com/Buy/Spire.PDF.html https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Convert-HTML-to-PDF-Customize-HTML-to-PDF-Conversion-by-Yourself.html Aspose.Html https://www.nuget.org/packages/Aspose.Html/ $599 - $1797 - https://purchase.aspose.com/pricing/html/net https://docs.aspose.com/html/net/html-to-pdf-conversion/ EvoPDF https://www.nuget.org/packages/EvoPDF/ $450 - $1200 - http://www.evopdf.com/buy.aspx ExpertPdfHtmlToPdf https://www.nuget.org/packages/ExpertPdfHtmlToPdf/ $550 - $1200 - https://www.html-to-pdf.net/Pricing.aspx Zetpdf https://zetpdf.com $299 - $599 - https://zetpdf.com/pricing/ Is not a well know or supported library - ZetPDF - Does anyone know the background of this Product? PDFtron https://www.pdftron.com/documentation/samples/cs/HTML2PDFTes $4000/year - https://www.pdftron.com/licensing/ WkHtmlToXSharp https://github.com/pruiz/WkHtmlToXSharp Free Concurrent conversion is implemented as processing queue. SelectPDF https://www.nuget.org/packages/Select.HtmlToPdf/ Free (up to 5 pages) $499 - $799 - https://selectpdf.com/pricing/ https://selectpdf.com/pdf-library-for-net/

如果上面的选项都帮不了你,你可以搜索NuGet包: https://www.nuget.org/packages?q=html+pdf

PDFmyURL最近也发布了一个。net组件,用于网页/ HTML到PDF的转换。它有一个非常友好的用户界面,例如:

PDFmyURL pdf = new PDFmyURL("yourlicensekey");
pdf.ConvertURL("http://www.example.com", Application.StartupPath + @"\example.pdf");

文档:PDFmyURL .NET组件文档

免责声明:我为拥有PDFmyURL的公司工作

尝试这个PDF Duo . net转换组件将HTML从ASP转换为PDF。NET应用程序,而不使用额外的dll。

您可以传递HTML字符串或文件或流来生成PDF。 使用下面的代码(示例c#):

string file_html = @"K:\hdoc.html";   
string file_pdf = @"K:\new.pdf";   
try   
{   
    DuoDimension.HtmlToPdf conv = new DuoDimension.HtmlToPdf();   
    conv.OpenHTML(file_html);   
    conv.SavePDF(file_pdf);   
    textBox4.Text = "C# Example: Converting succeeded";   
}   

Info + c# /VB的例子,你可以在:http://www.duodimension.com/html_pdf_asp.net/component_html_pdf.aspx找到

在c#中转换HTML到PDF使用ABCpdf。

ABCpdf可以使用Gecko或Trident呈现引擎,因此您的HTML表看起来与FireFox和Internet Explorer中的相同。

在www.abcpdfeditor.com上有一个ABCpdf的在线演示。您可以使用它来检查您的表将如何首先呈现,而不需要下载和安装软件。

为了渲染整个网页,你需要AddImageUrl或AddImageHtml函数。但如果你想做的只是添加HTML样式的文本,那么你可以尝试AddHtml函数,如下所示:

Doc theDoc = new Doc();
theDoc.FontSize = 72;
theDoc.AddHtml("<b>Some HTML styled text</b>");
theDoc.Save(Server.MapPath("docaddhtml.pdf"));
theDoc.Clear();

ABCpdf是一个商业软件,但是标准版通常可以在特别优惠下免费获得。