Math Formula Is Missing when Converting PPTX to SVG in C#

We have an application that converts PPTX files to SVG files.

If we have a MathFormula in our PPTX file and try to convert this file to SVG, the MathFormula is completely missing. In an old version of Aspose.Slides.NET (17.6.0) it was part of the output.

Our pptx looks like this:
image.png (39,1 KB)

The output svg file looks like this (Aspose.Slides.NET 22.2.0 and also 24.9.0):
image.png (23,5 KB)

The result svg with Aspose.Slides.NET 17.6.0 looks like this:
image.png (30,2 KB)

I have written a test method to easily create the SVG file:

[TestMethod]
[DeploymentItem(Dir + "MergerCoreTestPPTXinWord.pptx")]
public void TryPptxToSvgTest()
{
    var pptxBytes = File.ReadAllBytes("MergerCoreTestPPTXinWord.pptx");

    Presentation presentation;
    using (var pptxStream = new MemoryStream(pptxBytes))
    {
        presentation = new Presentation(pptxStream);
    }

    string svg = string.Empty;
    using (var stream = new MemoryStream())
    {
        presentation.Slides[0].WriteAsSvg(stream);
        stream.Flush();
        var svgBytes = stream.ToArray();
        svg = Encoding.UTF8.GetString(svgBytes);
    }

    File.WriteAllText("Result_SVG.svg", svg);
}

Here the pptx File

MergerCoreTestPPTXinWord.zip (34,5 KB)

@jschur,
Thank you for describing the issue. It will take me some time to check the problem. I will get back to you soon.

@jschur,
Thank you for your patience. I’ve reproduced the problem with missing math formulas when converting the slide from the PowerPoint presentation to an SVG image.

We have opened the following new ticket(s) in our internal issue tracking system and will deliver their fixes according to the terms mentioned in Free Support Policies.

Issue ID(s): SLIDESNET-44722

You can obtain Paid Support Services if you need support on a priority basis, along with the direct access to our Paid Support management team.