Terry, I didn't notice anything special when I printed out my copy. I'd be leery too! I try to keep up with stuff but I don't have the correct app to open up supplemental text for my audio books either, think I'm using a basic adobe reader option but not sure.
Here's the link I used from the Intro --
https://quiltville.com/pdf/IndigoWay_Intro_full.pdf
Maybe see if it still has the prompt for you.