It's a common joke in the papercraft community: 'Can I fold my Kindle?' While you obviously cannot fold the screen of a digital tablet, digital technology plays an indispensable role in modern book folding.
Digital Patterns & Screen Folding
In the past, templates had to be printed out, wasting paper and ink. Today, most book folding artists prop a tablet or phone next to their physical book. They scroll through the digital pattern PDF or use interactive web tools to mark pages, saving paper and making the hobby cleaner.