Photoshop or any other image editor can also be used, with a little more work, to make the fictitious airline tickets. They don't have a PNR code and can't be verified on the airline website. It is risky to use a fake plane ticket as proof of return or even to apply for a visa because fake tickets are easy to spot.

If you want to go through immigration and apply for a visa, you have to buy a fake ticket with a verifiable PNR.

You may get a dummy ticket for just $10, in ten minutes.

Purchase at https://dummyticket.services/  immediately.