If you don't see the print button, then the app probably doesn't have AirPrint support. The easiest way to save these locally is to add these documents to iCloud Drive or just email them to yourself.
If you don't know if the app supports AirPrint, just see if you are able to follow these steps: If the app you are printing from supports AirPrint, then follow these steps. How to print from iPhone, iPad, or iPod touch using AirPrintĪ lot depends on the app. Here are the different ways you can print any document to pdf from your iOS device. If you open these on your iPhone or iPad, printing them to pdf is an easy way to save them for reference. Quite a few times you might get an email with a ticket or have it on a website. You can just carry a PDF of your ticket on a smartphone and a physical copy of a photo ID to enter. Thankfully in many situations, such as when you're trying to show your tickets to enter an airport, soft copies of documents are accepted. Much as everyone wants paper to become obsolete, it just stubbornly refuses to go away from our lives.