Opening a Document from Attachment Pane for Auto-Filling Task

Hello Experts,

No one responded to my previous post, so I'm posting again to seek a response.

I have a MASTER PDF with text fields, and I would like to auto-fill template PDF documents using an action button. Currently, I have been able to achieve this to some extent, as the auto-filling function is working fine. However, I would like to make some changes.

Currently, I have to place the "Target Documents" in a specific folder location and I also have to mention in the script like this:

var targetDocPath = "E:/Fili/Document1.pdf";
var targetPDF = app.openDoc(targetDocPath);

What I want to do is attach the target/template documents to the master PDF in the Attachment Pane and I would like the script to detect the target document (through checkbox selection) from the attachments in the Attachment Pane and Open document and Fill it out.

This way, I won't have to manage multiple PDF files separately, and the Master PDF will become an all in one solution.

So, my question is: Is it possible to open a document from the attachment pane and perform this auto-filling function?

I hope you understand what I'm trying to achieve. 🙂

Thank you.