Convert PowerPoint to PNG using C#

readme.md

Learn how to convert PowerPoint presentations to PNG images in C#: https://blog.aspose.com/2021/09/01/convert-powerpoint-to-png-in-csharp/

powerpoint-to-png.cs

// Load PowerPoint presentation
using (Presentation pres = new Presentation("presentation.pptx"))
{
    // User defined dimension
    int desiredX = 1200;
    int desiredY = 800;

    // Getting scaled value of X and Y
    float ScaleX = (float)(1.0 / pres.SlideSize.Size.Width) * desiredX;
    float ScaleY = (float)(1.0 / pres.SlideSize.Size.Height) * desiredY;

    foreach (ISlide sld in pres.Slides)
    {
        // Create a full scale image
        Bitmap bmp = sld.GetThumbnail(ScaleX, ScaleY);

        // Save the image to disk in PNG format
        bmp.Save(String.Format("slide_{0}.png", sld.SlideNumber), System.Drawing.Imaging.ImageFormat.Png);
    }
}