I have a Formie form on my site where users can request a white paper. After filling in the form, their browser opens the PDF in a separate tab. I also want to send the user a confirmation email with a clickable link in it that points to the white paper PDF. The Formie email content editor has no 'insert hyperlink' tool. How do you embed a hyperlink in a Formie notification email?
You can write the text in another Rich Text Editor (for example CK or Redactor) and then Copy & Paste the formatted text including the link. Or you write the html file, open it in the browser and copy the Rich Text there and paste it in the Formie editor.
Formie will not strip it out (at the time of this writing).
The best way is probably to create custom email templates so you can add the link directly in the twig template: https://verbb.io/craft-plugins/formie/docs/template-guides/email-templates
I believe they provide a "Copy Templates" feature, so it should be as simple as cloning the default templates and tweaking the code a bit.