I have booked a rail ticket for travel next week using Northern , i usually choose the option to collect them from the ticket machine, however i have mistakenly selected the e ticket option (i was obviously not paying attention!) and so they were e mailed to me. As i am unable to print them i opened the PDF for the tickets and have taken a photo of the QR code that represented each ticket from my computer. Would this mean my tickets QR codes can be scanned by the conductor by just showing him/her the photos i took? and if not could i go to a Northern ticket office to see if they can issue them ? any help would be appreciated, i am not tech savvy to say the least!!