By default the headers, text fields are not included in the notification emails. You'll be able to add only the fields from the form to the notifications. However, the email composer is a full editor that allows to you to insert graphics, create tables, etc. The headers or text on your JotForm can be copied and pasted here in the email content.
You may also want to refer to the following guide that the submission can be included with the text and headers.
So that you can place a PDF link on your email notification as well.
Hope this information helps. Please let us know if you need any further assistance.