Convert PowerPoint to JPG in C# - Aspose.Slides for .NET

Convert-PPT-to-JPG-Customized-Scaling.cs

using (Presentation pres = new Presentation("PowerPoint-Presentation.pptx"))
{
	// Define dimensions
	int desiredX = 1200;
	int desiredY = 800;
	// Get scaled values 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 JPEG format
		bmp.Save(string.Format("Slide_{0}.jpg", sld.SlideNumber), System.Drawing.Imaging.ImageFormat.Jpeg);
	}
}

Convert-PPT-to-JPG.cs

using (Presentation pres = new Presentation("PowerPoint-Presentation.ppt"))
{
	foreach (ISlide sld in pres.Slides)
	{
		// Create a full scale image
		Bitmap bmp = sld.GetThumbnail(1f, 1f);

		// Save the image to disk in JPEG format
		bmp.Save(string.Format("Slide_{0}.jpg", sld.SlideNumber), System.Drawing.Imaging.ImageFormat.Jpeg);
	}
}