How to Convert PPTX to Markdown using C#. For more details: https://kb.aspose.com/slides/net/how-to-convert-pptx-to-markdown-using-csharp/

How to Convert PPTX to Markdown using C#.cs

using System;
using Aspose.Slides;
using Aspose.Slides.Export;

namespace TestSlides
{
    public class PresentationToMd
    {
        public static void ConvertToMD()
        {
            String path = @"/KnowledgeBase/TestData/";

            // Setting the license for the product to convert a presentation to MD
            License SlideToMdLicense = new License();
            SlideToMdLicense.SetLicense(path + "Conholdate.Total.Product.Family.lic");

            // Load the source presentation file to convert to MD file
            using (Presentation presToMd = new Presentation(path + "Source.pptx"))
            {
                MarkdownSaveOptions markdownSaveOptions = new MarkdownSaveOptions
                {
                    ShowHiddenSlides = true,
                    ShowSlideNumber = true,
                    Flavor = Flavor.Github,
                    ExportType = MarkdownExportType.Sequential,
                    NewLineType = NewLineType.Windows
                };

                // Save the slides 1 to 3 as MD on the disk
                presToMd.Save("Exported.md", new[] { 1, 2, 3}, SaveFormat.Md, markdownSaveOptions);
            }
        }
    }
}