Export Application PDF Dialog box is small

Hello Experts,

I have enabled "Export to PDF" feature in Design Studio dashboard and used below code to achieve this functionality.

PDF.exportApplication();

When I tried to export dashboard to PDF, the following dialog box is popped up to select some options like size, orientation etc, but the dialog box is small in size with very small vertical scroll bar.  You can notice that Portrait drop down (2nd dropdown box) is not fully visible in the below screenshot. How to increase the size of this dialog box or scorll bar so that Portrait dropdown ibox is fully visible.

I have created this dashboard for iPad in Design Studio 1.5. I have searched this issue in SCN but I did not get any information on it.

Thanks for your help in advance!

Regards,

Satyam