Automatic Information PDF sent to submitter of form



Apologies if this is answered somewhere already, but I was having a hard time finding exactly what I was after.

I have a form I am sending out for applicants to submit.
Is there a way for these applicants to automatically receive a PDF document after submitting the form?

Currently in workflow automation I have it set to "Trigger when email field is changed → Send to contact in field 'Email' ". However, this only allows for an unformatted message to be emailed.

For the purpose of this application, the applicants will need a PDF that has technical images, so the text field is not enough.

If there is something I am missing, or a cleaver work around, I would greatly appreciate the feedback.

Thank you