public static void ConvertInRequest()
{
string format = ExportFormat.Ppt.ToString(); //PPTX PPSX PPT PPS ODP PDF XPS PS PCL
string inputFilePath = "D:/inputFile/convertInRequest.pptx";
System.IO.Stream document = new FileStream(inputFilePath, FileMode.Open);
string password = null;
var response = generalApi.ConvertInRequest(format, document, password);
document.Close();
}