Thanks for your comment! Now, we have fixed the issue.
FYI, still a glitch: email form for pdf doesn't work right on mobile Safari for me---the cursor shows up in strange places unrelated to the form fields, have to click in random places to go from editing the name field to the email field.
Thanks for your comment. We are going to look into it.
The 'send me the PDF' pop-up can not be closed on my iPhone. Had to close the page.