Write onto a document

Hi,

I am trying to replicate the steps indicated in the following note:

https://support.docuware.com/en-us/knowledgebase/article/KBA-36216

But only run ok if I execute the form.  
I would like to start from a document created by DocuWare Printer, use the indexes to fill in the merge form. But I think I'm not doing something right by following the note

Any Idea?

Dear Pedro Jimenez! It looks like the Community cannot answer your question. That's why we have opened a Support Request with the Number SR-191401-H8Z3S for you. A Software Support Specialist will contact you directly to follow up. We will update this thread with the solution as soon as we have resolved the Support Request. With best regards, DocuWare Support Team

Dear Pedro Jimenez,

as written within the Support Request, the solution in this case is to execute the Forms by hand. DocuWare Printer is creating a fixed PDF, but the Workflow can only write onto a PDF created by Forms.
The way described within the KBA is a possible way to get index information from one PDF to another, but the Printer as well as the Form has to be triggered by hand.
With best regards,

Dominik Bittner