So I think I managed to fix the schwa in that Peking/Beijing rant. I managed to somewhat incompetently (somewhat? Completely!) follow John‘s instructions and get a couple of IPA fonts installed and kind of working.
As for making pdf files work properly, I dunno, next time I think I’ll just google it and get an HTML version. It should be possible to copy text straight out of a pdf file, but I’ve never managed to make it work for me.
So basically, yes, I am hopelessly incompetent. But I am slowly learning how to use fancy modern things like electric lights and bicycles.