Photoshop or any other image editor could be used, with a little extra work, to produce the fake flight tickets » . They don't have a PNR code and can't be verified on the airline website. It is risky to use a fake flight ticket as proof of return or even to apply for a visa because fake tickets are easy to spot. In order to pass immigration control or file for a visa, you have to buy a forged ticket with a verified PNR. You may get a fake flight ticket » for just INR350/$5, in 10 minutes.