The Neocatechumenal Way fiercely guards this practice because the medium is the message. A PDF is anonymous, identical for everyone, and deletable. A handwritten notebook is unique, scarred by your own failures, and physically present on your shelf as a witness against and for you.
If you download a file titled “Mamotreto.pdf,” what you likely have is one of two things: mamotreto cammino neocatecumenale pdf