Html String to RTF Formatted String

[Relatics]

Hi,

I want to convert a piece of HTML (as a string) to a RTF formatted string.

Something like this:

String aContentAsHtml = @"some text";
String aContentAsRtf = [aspose method].ConvertString(aContentAsHtml, SaveFormat.Rtf);

My case is in fact a bit similar to this one: https://forum.aspose.com/t/convert-html-string-to-rtf-string/114845

But i don’t want to save the output directly to a RTF file, just convert the HTML from string to string.

Is this possible?

Thanks,

Martín.

[alexey.noskov]

Hi Martin,

Thanks for your request. In your case, you can save RTF to stream and then extract RTF string from this stream. Code will look like this:

private static string GetRtfString(string html)
{
    string rtfString = "";
    // Create a document and insert HTML into it.
    DocumentBuilder builder = new DocumentBuilder();
    builder.InsertHtml(html);
    // Save document to stream as RTF and get RTF string.
    using (MemoryStream rtfStream = new MemoryStream())
    {
        builder.Document.Save(rtfStream, SaveFormat.Rtf);
        byte[] rtfBytes = rtfStream.ToArray();
        rtfString = Encoding.UTF8.GetString(rtfBytes);
    }
    return rtfString;
}

Hope this helps.

Best regards,

[Relatics]

Thanks for your help Alexey. It’s exactly what I was looking for.

As I was using the above code with a evaluation version of Aspose.Words another question was raised. I hope you can answer this one too as it is a weird thing to explain.

Sometimes, my converted HTML code to RTF format causes the RTF Document to show weird signs/symbols of some kind. Example:

UPDATE ONGEVEER EEN UUR GELEDEN

Also, text colors don’t always show up as I expect. Are these things caused by possible limitations of the evaluation version of doesn’t Aspose.Words fully support HTML formatting when converting it to RTF?

Thanks in advance,
Martín.

[alexey.noskov]

Hi Martín,

Thanks for your request. Could you please attach your source HTML and output RTF here? We will check the issue and provide you more information.

Best regards,

[Relatics]

Hi again,

It turns out that Altova Stylevision (which I use to generate the RTF file with an XML/XSL and all translated RTF pieces) causes the problems with the fonts and colors.

Thanks for your time though!

Martín.

[alexey.noskov]

Hi Martín,

Please let us know if you need more assistance, we are always glad to help you.

Best regards,