Tap Format. That's it. If you're working on Photos on Mac, just select Photos, then select the file. (If you're working on Photos on your iPhone, just select Files, then select the file.) How to Convert Images into PDFs on Your iPhone and iPad 5 Dec 2024 — Open the Photos app and swipe one photo to the left. You'll see two options, “Create PDF” or “Save PDF.” Select Create PDF, so you can convert your PDF image into an image you can print.