static void Main(string[] args) { PdfDocument pdfDoc = new PdfDocument(); string fileName = args[1]; pdfDoc.Info.Title = fileName; //Getting files from directory string dir = args[0]; foreach (string i in Directory.GetFiles(dir, "*.jpg")) { pdfDoc.AddImagePage(i); } fileName = @"D:\" + fileName; pdfDoc.Save(fileName); Process.Start(fileName); }