Hi,
thank you very much for your prompt reaction and answer
Your example didn’t actually help me 
But I was able to pass the ReadPDF node successfully with lots of trials and errors
I have now another issue with the Dropbox node, but I believe that this is possibly a bug
The thing is that I have the following folder stricture in Dropbox
/Documents/Računi/2020 - računi/
You can see that folder names have my local characters (Latin literals)
When I try to upload a file to that folder, I get the following error
Is there some trick to use Latin characters in the folder names with Dropbox node?
Regards,
Igor