Print documents (sale, purchase, payment) on the V8

Hello everyone,

I come once again to ask for your help.
I have a customer who wants to use an app only to view the issued documents (sales documents, purchase documents and settlement documents).
I already have the table with the list, which I wanted, it was with a DoubleClick to be able to print in PDF the document in question.
This system is already running on the V9 with the following code:

BSO.Commercial Sales.ImpressDocument (DOC Type, Series, CInt (NumDoc), Branch, 1, DocImp, False)

But in the case of the V8, the "PrintDocument" option does not exist, does anyone know how I can do it?