So I took Duy's automation one step further and included the pdf itself in an airtable, so it is easy to reference for the client. All they need to do is click on it and no hunting around in their google drive.
Here are the codes that need pasted into the Edit fields and Airtable nodes:
Edit fields node: {{ [{"url":$json.webContentLink }] }}
Airtable node: {{ $json.attachments }}
Any questions just shout or if you want the blueprint let me know below.