Disabling PDF export for specific reports

Hi,

Is there a way to disable exporting report in a particular format for specific reports? I have 3 reports and I want to disable PDF export for only one of them. I searched and found someone had suggested using the report name in the ExportReportDialogFragment.jsp to decide which export format options to show. But I do not prefer that since this solution is not extensible. I would prefer to program something in the report that would indicate that this report cannot be exported to PDF.

I see in the ExportReportDialogFragment.jsp, ParameterAccessor.supportedFormats is used to decide what export options to show to the user. Is there a way I can set ParameterAccessor.supportedFormats to specific values in a report to suggest which formats that report supports?

Thanks,
Aparna