On the Home screen, tap one of the 5 big cards: Scan with Camera, Sign a PDF, Password Protect, PDF Converter or Extract Text (OCR).
Tap Start and allow the camera when your phone asks. No camera? Tap Choose from gallery to use photos you already took.
Hold the phone flat above the page in good light and tap the round Capture button once per page. When all pages are taken, tap ✔ Done.
Check the small pages: ◀ ▶ move a page, ⟳ rotates it, ✕ deletes a bad page. Tap Add more pages if you missed one.
Pick a Clean-up style, keep Auto-crop to the paper ticked, then tap Start to build the PDF.
When you see Done!, tap Download. The new file is saved on your phone or computer.