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 Choose files and select all the files you need (you can select several at once).
Choose اردو + English.
Choose the Result: Text (copy and paste the words) or Searchable PDF (same pages, but you can search and select text).
Tap the big purple Start button and wait a few seconds.
The first time, the reading engine downloads once, so it can take a minute. Always check the text for mistakes, especially numbers and names.