@AdrianMaire Ah, yes, so there are two approaches: (1) Use Okular to edit the PDF file, and then screen capture to JPG, (2) Screen capture PDF to JPG, then PhotoShop editing.

Progress report 2020sep11hkt1707.

Now that I found the LX-824HV LeWanSoul tests with Windows RealTerm using BusLink and TXS0104 OK, I am moving to Rpi4B and CuteCom and test the ReadVin command again. I found the test OK, with some teething problems. I am saving a record for later reference and troubleshooting. Next step is to use Thonny python to do everything, ie, no more terminal emulators RealTerm or CuteCom.

Jogging time. See you later. Cheers.

Wooww! Nice testing environment