Hi Adam
There are quite a lot of posts on this site that discuss different ways of creating a downloadable pdf - and also ways of creating an email.
Personally, my initial thoughts would be to create a simple pdf template then capture the learner's thoughts through a text entry box and add a JavaScript trigger using the pdf-lib JavaScript library to 'fill in' the pdf template. This is remarkably simple even if your JavaScript isn't so good.
Once you have created the completed pdf file you can then offer it to the learner for them to download and allow them to email it to the instructor.... OR, I would use another JavaScript library like EmailJS that is an intermediary email service to send the email with your pdf as an attachment (which is possible with EmailJS). There is, however, a small charge for using intermediary services.
The argument for using an intermediary service is discussed here:
