How to attach different PDF of form submissions to the Notification and response email

It's also possible to attach submission pdf's to the notification and response e-mails.

Is it possible to attach *different* pdf's to the outgoing response and notification e-mails, based on either which e-mail is being sent, or based on information submitted in the form, in the same way it's possible to edit the response/notification e-mail bodies?

I understand I can go to the Submissions view, and customize the pdf, but I don't believe that specifically addresses what I'm after.

If it is the submission PDF only, I am afraid you cannot do it using different version of the submission PDF of the form.

You are correct that the customize PDF is the only version that will be used in all the PDF submission attachment of the form. So it is one PDF only.

The option that will allow you to attached different PDF document to different email is the 'manually attached' file in Emails.

User guide: How-to-Attach-a-File-to-Autoresponder-Emails

You can create conditional email that will be sent base on answers on the form. The different email can have then different attached file(PDF)

User guide: How-to-Send-Email-Based-on-User-s-Answer

Hope this help. Let us know if you need further assistance.