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Convert HTML string to PDF file and open/download that PDF file in browser

I need to convert the HTML String to generate a PDF file , and open/download that same PDF file on the browser.

I have tried following code , but it didnt work well.

public void CreatePDF1()


string MyDir = @“c:\temp\Test11”;

string fileName = MyDir + " EC.htm";

// Open the stream.

Stream stream = File.OpenRead(fileName);

LoadOptions loadOptions = new LoadOptions();

loadOptions.BaseUri = MyDir;


string str2 = “PDF_” + DateTime.Now.ToString().Replace(’:’, ‘_’).Replace(’/’, ‘-’) + “.pdf”;

Aspose.Pdf.Document doc2 = new Aspose.Pdf.Document(fileName);

doc2.Save(stream, Aspose.Pdf.SaveFormat.Pdf);

stream.Position = 0;


I get the followign error:
<span style=“font-size:11.0pt;font-family:“Calibri”,“sans-serif”;
“Times New Roman”;mso-ansi-language:EN-US;mso-fareast-language:EN-US;
mso-bidi-language:AR-SA”>Startxref not found

Please Help

Hi Vishal,

Thanks for your inquiry. Please use DOM approach to convert HTML to PDF, save output document in stream and send document to browser. Please check following code snippet for the purpose. Hopefully it will help you to accomplish the task.

// Specify the The base path/url for
the html file which serves as images database

String basePath = "C:/temp/";

MemoryStream stream = new MemoryStream();

HtmlLoadOptions htmloptions = new HtmlLoadOptions(basePath);

// use the new conversion engine

htmloptions.UseNewConversionEngine = true;

// load HTML file

Document doc = new Document("input.html", htmloptions);

// Save HTML file



//Specify the document type.

Response.ContentType = "application/pdf";

Response.AddHeader("content-disposition", "inline; filename=ConvertedDoc.pdf");

byte[] bytes = stream.GetBuffer();






Please feel free to contact us for any further assistance.

Best Regards,

Hi ,
Thanks for your reply…
But I dont want to save the file in any location in as mentioned below.

String basePath = “C:/temp/”;

I just want to return the MemoryStream object.


Hi Vishal,

Thanks for your feedback. Please note basePath is not used to save but reading the input HTML file. Please note HtmlLoadOptions() constructor with path string parameter is used if your input HTML file has some external resources etc. images or CSS files etc.

Moreover, if you only want to use html string to create a PDF file. Then you may use HtmlFragment object for the purpose. Please check following documentation link for the purpose.

Please feel free to contact us for any further assistance.

Best Regards,