Tap Print. How to Convert a Picture to PDF on an iPhone 10 5. Tap on the image.6. Tap the small print button at the bottom of the screen. This will bring up the Share Sheet. Tap on the Share Sheet, then select “Print”.7. Tap OK to save your photo.8. Tap the share-button at the bottom of the screen. How to Convert a Photo to PDF on iPhone 11. Tap the Share button at the bottom of the screen. Tap Create New File. How to Convert a Picture to PDF on iPhone 12. When you tap on Photo in the menu bar, choose iPhone to choose the photos you want to convert. Tap Edit. Tap the Photos tab. Tap Photos. Tap the photo.