If you want to print a 4x6 photo from your iPhone, there are a few different ways to go about it. The first option is to use the Photos app on your iPhone. Open the Photos app and select the photo you want to print. Tap the Share button in the bottom left corner of the screen and select Print from the list of options. You can also use Apple’s AirPrint feature to print photos from your iPhone. Open the Photos app and select the photo you want to print. Tap AirPrint in the bottom left corner of the screen and select Print from the list of options. The final option is to use an external printer connected to your computer. Open iTunes on your computer and connect your iPhone to it using a USB cable. Select Photos in iTunes’ File menu and choose Export Photo(s). In the Export Photo(s) window, choose 4x6 as one of the resolution options and click Save. ..