Article in English: Tap the Photos app icon, which resembles a multicolored pinwheel on a white background. Tap the album from which you want to select your photo, then tap the photo that you want to turn into a PDF. The photo will open.  You may first have to tap the Albums tab in the bottom-right corner of the screen. If you want to select multiple photos, tap Select in the top-right corner of the screen, then tap each photo that you want to select. It's in the bottom-left corner of the screen. A pop-up menu will appear. You'll find this printer-shaped icon in the bottom row of the menu. On the "Printer Options" page, zoom in on the preview at the bottom of the screen by pinching your fingers away from each other. This will open your selected picture(s) in a PDF preview. If your iPhone has 3D Touch, you can press down on the preview to open it in a new window and then press down harder to open the PDF preview. It's in the top-right corner of the screen. This will open a menu at the bottom of the screen. This folder-shaped icon is in the bottom row of the menu. Doing so will open a list of your Files app's available save locations. Tap the folder or location in which you want to save your PDF. If you select the On My iPhone location, you will then be able to select a folder (e.g., Numbers) on your iPhone. It's in the top-right corner of the screen. Your PDF will be saved in your selected locations.

Summary in Hindi:
फ़ोटोज़ खोलिए: कोई फ़ोटो चुनिये: "Share" आइकन पर टैप करिए: Print पीडीएफ़ व्यू को खोलिए: "Share" आइकन पर टैप करें: Save to Files सेव लोकेशन चुनिये: Add