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 System.Drawing.Imaging;

namespace PptToPngConverter
{
    class Program
    {
        static void Main(string[] args)
        {
            // Paths (adjust as needed)
            string inputPath = "sample.pptx";
            string outputDir = "output";

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

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

                    // Convert each slide to PNG with 300 DPI
                    for (int i = 0; i < slideCount; i++)
                    {
                        ISlide slide = presentation.Slides[i];
                        using (var bitmap = slide.GetThumbnail(300, 300))
                        {
                            string outPath = Path.Combine(outputDir, $"slide_{i + 1}.png");
                            bitmap.Save(outPath, ImageFormat.Png);
                            Console.WriteLine($"Saved slide {i + 1} to {outPath}");
                        }
                    }
                }

                Console.WriteLine("All slides have been converted successfully.");
            }
            catch (Exception ex)
            {
                Console.Error.WriteLine($"Error during PPT to PNG conversion: {ex.Message}");
            }
        }
    }
}