Programmatic .NET Implementation: Convert PPT to PNG Using C# SDK

convert_ppt_to_png_complete_code_example.cs

using System;
using System.IO;
using Aspose.Slides;
using Aspose.Slides.Export;
using System.Drawing.Imaging;

class PptToPngConverter
{
    static void Main()
    {
        // Set up license (replace with your actual license file)
        var license = new License();
        license.SetLicense("Conholdate.Total.lic");

        string inputPath = "sample.pptx";
        string outputDir = "output";

        // Ensure output directory exists
        Directory.CreateDirectory(outputDir);

        try
        {
            using (Presentation pres = new Presentation(inputPath))
            {
                int slideCount = pres.Slides.Count;
                Console.WriteLine($"Found {slideCount} slide(s). Starting conversion...");

                for (int i = 0; i < slideCount; i++)
                {
                    // 2x scaling for ~150 DPI; adjust as needed
                    using (var bitmap = pres.Slides[i].GetThumbnail(2, 2))
                    {
                        string outPath = Path.Combine(outputDir, $"slide_{i + 1}.png");
                        bitmap.Save(outPath, ImageFormat.Png);
                        Console.WriteLine($"Slide {i + 1} saved to {outPath}");
                    }
                }
            }

            Console.WriteLine("All slides converted successfully.");
        }
        catch (Exception ex)
        {
            Console.Error.WriteLine($"Conversion failed: {ex.Message}");
        }
    }
}