In most cases, you don't need to print the e-tickets Rail Ninja sends you as a PDF file, but you must have your ticket with you in some form during the trip. That can be a printed e-ticket or a downloaded version on your phone, tablet, or another device, ready to show the car attendant or conductor when asked. Your tickets arrive by e-mail as PDF attachments, and if you use the Rail Ninja app, your issued tickets are securely stored in the app and available offline, so you can open them even without an internet connection. Mobile tickets reduce the need to print, and many operators allow PDF tickets on mobile devices. Some railway operators, however, require physical tickets for specific journeys, so always read the instructions on your ticket. We still recommend printing your e-tickets when you can, because it's convenient to have all your train information at hand. If you decide to print, do it before your trip, since it usually isn't possible to print your ticket at European train stations. Before you go, check
what your car/seat number is and plan
how to find your train station.