Problem with PDFCreator

I am trying to automatically save a sales order to a specified location on my hard drive and I want to do it from inside the report (I have a reason for doing this). The problem is I get one big NOTHING. The file isn't there! Here is the code that I have in OnPostTrigger:

CLEAR(PDFCreatorOption);
CLEAR(PDFCreator);
CLEAR(PDFCreatorError);

FileDirectory := 'C:\';
FileName := 'example1.pdf';

IF ISCLEAR(PDFCreator) THEN
  CREATE(PDFCreator);
IF ISCLEAR(PDFCreatorError) THEN
  CREATE(PDFCreatorError);

PDFCreatorError := PDFCreator.cError;

IF PDFCreator.cStart('/NoProcessingAtStartup',TRUE) = FALSE THEN
     ERROR('Status: Error[' + FORMAT(PDFCreatorError.Number) + ']: ' + PDFCreatorError.Description);

IF ISCLEAR(PDFCreatorOption) THEN
  CREATE(PDFCreatorOption);
PDFCreatorOption := PDFCreator.cOptions;

PDFCreatorOption.UseAutosave := 1;
PDFCreatorOption.UseAutosaveDirectory := 1;
PDFCreatorOption.AutosaveDirectory := FileDirectory;
PDFCreatorOption.AutosaveFormat := 0; 
PDFCreatorOption.AutosaveFilename := FileName;

PDFCreator.cOptions := PDFCreatorOption;
PDFCreator.cSaveOptions(PDFCreatorOption);
PDFCreator.cClearCache();
DefaultPrinter := PDFCreator.cDefaultPrinter;
PDFCreator.cDefaultPrinter := 'PDFCreator';
PDFCreator.cPrinterStop := FALSE;

SLEEP(15000);

PDFCreator.cPrinterStop := TRUE;
PDFCreator.cDefaultPrinter := DefaultPrinter;
PDFCreator.cClose;
CLEAR(PDFCreator);

I have ordered the report to sleep for 15 seconds (15000 miliseconds) and wait for the .PDF file to be created, but I still get nothing. It simply doesn't create the file. I have only one Invoice and I think 15 seconds is more than enough for PDFCreator to create a file. I succeeded saving the file but I had to first initialize the PDFCreator printer from a codeunit, then RUNMODAL the report (also from codeunit) without starting the ReqWindow like this:

REPORT.RUNMODAL(ReportSelection."Report ID",FALSE,TRUE,SalesHeader);

I don't want to do it like this! I have a reason for not doing something like this and I want the code inside the report! I want it to create a .PDF file every time I preview/print the report...even from Object Designer. The user also needs to filter the report, use the request form before printing etc.

Thanks for helping me!