Why would you need it?
Scan Position and Paste as FEN

ChessOCR is an android app that does it. There is also this PC program which makes an attempt at it, but is a little clunky:
ChessBoard Capture
https://sites.google.com/site/fredm/
I bought an Android tablet solely so that I could install ChessOCR. (I'm an Apple/Mac/iPhone/iPad person, but there's no similar chess-OCR app I could find there.) It works great!
To MSC157's question ("Why would you need it?"): I like to keep notes on my studying of books and positions in PGN files.
When I want to analyze positions in a book (e.g., Hendriks, "Move First, Think Later"), I quickly go through the book, using the ChessOCR app to capture each separate exercise position and convert each one into a separate PGN game where the position is defined by FEN. I then email the resulting large PGN file from the tablet to my Mac, where I import it into HIARCS Chess Explorer for Mac.

You could possibly set up an Android virtual machine with like virtualbox or something. Look up something called Blue Stacks (I think it is?). Not sure how well this would work, but maybe worth a try if you are desperate.

You can try https://chessvision.ai/ - we have a desktop extension, a mobile app, and a dedicated chess PDF reader so you should find the one that suit your needs the best
Does anyone know of any chess software that can scan a kindle page or a pdf page and automatically copy it as a FEN and then paste into Chessbase?