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My program should convert a ppt slide into an image file and it does. The only thing that bothers me is the blank PowerPoint window that opens and closes again (with sound). Is it possible to perform this conversion without opening this window?

What I have tried:

if (Path.GetExtension(file).Contains("ppt"))
                        PPT.Application pptApp = new PPT.Application();
                        pptApp.Visible = MsoTriState.msoTrue;
                        PPT.Presentation pptPr = pptApp.Presentations.Open(file, MsoTriState.msoFalse, MsoTriState.msoFalse, MsoTriState.msoFalse);
                        pptPr.Slides[1].Export(ImagePath + Path.GetFileNameWithoutExtension(file) + ".png", "png");
wilford.ramsey 28-Jun-17 7:51am
You can use this C# or VB.NET library for PowerPoint to accomplish that with the following code:

var presentation = PresentationDocument.Load("Sample.ppt", new PptLoadOptions());
presentation.Save("Sample.png", new ImageSaveOptions(ImageSaveFormat.Png));

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