On an iPad, can I "markup and reply" to two PDFS in the same email?

If someone sends me an email containing a PDF attachment (or a JPG, or another image format...) I know that, on an iPad, I can markup the attachment and then send the marked-up document in a reply to the sender. But what if the email contains *two* PDFs? Is there a way to mark up the first, return to the original email, mark up the second, then send a reply containing both marked-up documents?