Batch Printing PDF Only Prints Half Page

Hi,

Recently every time I batch print A3 drawings in landscapes in pdf the drawing comes out with half of the page gone. 

It is as if the batch print is printing in A4 portrait cutting of the other half of the page.

I am not sure what is going on because normal printing works fine as it is and I have checked my print configurations.

Please let me know if there is a solution to this.

Thank you for helping.