KoorTickets only concerns itself with creating and sending e-tickets with QR codes. It is up to the organiser whether or not to allow you to share the e-ticket with someone else.
From a technical point of view, it is perfectly possible to forward the e-ticket - or a copy thereof. This can sometimes even be very useful: if you have bought both a ticket for yourself and for a companion in one purchase, you can keep one copy of the PDF that you received by email and send a copy to your companion. Because two tickets have been purchased, the QR code can be scanned twice before it becomes inactive. So no problem if you and your companion do not arrive at the event at the same time: simply have the same QR code scanned once, for 1 ticket each. Because that’s how the iPhone scanner works: at the start of the event, the organiser scans the QR code, and with each scan the number of products to which the QR code entitles you (admission, booklets, t-shirts, etc.) is reduced. That is, with every scan you will receive (one of) the products you have purchased, until the QR code is 'exhausted'. KoorTickets does not accept any responsibility for whether or not the organiser has correctly provided the purchased products (see also our general terms and conditions).