email the user a copy of the document

And to email them a copy of it once its signed as well as a copy email to me.

You can create a PDF document of the submission and attach it to the email notification (that you'll receive) and the autoresponder email (that your users will receive).

However, you should an email field to the form. In that way, the form will know where to send the autoresponder.

Here's another video guide for your reference: http://tiny.cc/48l0tz

As you can see, I have removed the FULL NAME, ADDRESS, and EMAIL fields into the PDF document, so only the texts and the signature will be shown.

Please try signing this form, add your email, and you shall receive a copy of the PDF: https://form.jotform.com/202957345379972?clientName%5Bfirst%5D=John&clientName%5Blast%5D=Smith&clientAddress%5Baddr_line1%5D=111%20Pine%20Street&clientAddress%5Baddr_line2%5D=Suite%201815&clientAddress%5Bcity%5D=San%20Francisco&clientAddress%5Bstate%5D=CA&clientAddress%5Bpostal%5D=94111