We're using Box sign to obtain manager authorization for bill payment.  In Sign, I selected the invoice and then added the signature page.  While the signing process worked fine, Box separated the pages into two separate files - one file for the invoice and one for the signature page.  I need to upload both pages, as ONE file, to Bll.com.

Why did it separate the signature request into two separate files and how I can stop that from happening or work around it?