In sudokuvision_multithread3-version anglaise 4, save->html_sud_save allows you to create a .txt file of HTML-coded grids, which you can use to generate a QR code for each sudoku using the "DRPU Barcode Label Maker" software: https://www.drpusoftware.com/drpusoft/barcode-maker.html
On Android, scan the QR code, copy and paste into Quick Editor+, then save as .html, then open Google Files. Go to the folder containing the HTML sudoku file, then open it with HTML Viewer: you will get the sudoku grid.
Then take a screenshot and open it in FP sdraw; OR
After scanning the QR code, copy it into the app on Android: code editor https://play.google.com/store/apps/details?id=com.rhmsoft.code, then select HTML syntax, then run, then take a screenshot and open it in FP sdraw.
On iOS past the html code in JSitor,execute it and then take a screenshot of the grid and import it in a drawing app (memopad)
On Windows install the app "HTML playground".Scan the qrcode,copy the html code in this app and then run.