To print your iDTGV ticket you just have to go to the My travels space with your travel references (file number + e-mail address that you used for the reservation, or file number + surname + first name of the passenger).
Once identified, you should click on the "I print my tickets" button, then specify the information relating to the passenger(s) if you did not do so during the reservation (surname, first name and date of birth).
The only thing left for you to do is to click on the link Print to produce a PDF file for each ticket, and print each ticket in an A4 format.
Click here to book your iDTGV ticket
Les utilisateurs ayant consulte cette reponse ont egalement consulte :
iDTGV, Élu Service Client de l'Année 2012