Attach files for API Integration

Hi guys!
Can someone help me with this?
I need to create an order and attach a PDF document that needs to be linked to that order.
This is initially not a problem.
But when I try to send it via integromat to another system, I can’t seem to locate the PDF file to send.

I think can not send files, in this case, an option would be Google Drive I guess, but how could I use it as storage and at the same time synchronize it with that field or column?

I hope I have explained well, I leave an example to evaluate it.

Integromat should be able to pull that file and give you the long blob link (unencrypted). Take that and have integromat download the file using the HTTP module “Get File” and then push that to your other system.

Set “value format” as “rich”