تبدیل PPSX به SVG از طریق C#

using (Presentation pres = new Presentation("template.ppsx"))
{
    for (var index = 0; index < pres.Slides.Count; index++)
    {
        ISlide slide = pres.Slides[index];

        using (FileStream fileStream = new FileStream($"slide-{index}.svg", FileMode.Create, FileAccess.Write))
        {
            slide.WriteAsSvg(fileStream);   
        }
    }
}