Could not convert DWG to PDF

Hi support,
I could not convert DWG to PDF. The output pdf file is just blank.
Could you take a look on my code to see what is wrong?
Sdk_Aspose.7z (1.0 KB)

Thanks
Tuan

Hello, @tuanlam
Your code is correct at first glance. May you kindly provide your input file so we will be able to reproduce it on our side?