in reply to
Re^2: print comma in superscript
in thread print comma in superscript
I believe those characters you are thinking of as superscripts
in the pdf document are actually just regular characters being
displayed in a different font and different baseline.
See this short discussion from stackoverflow.
So you won't be able to get all the information into the plain text,
instead you'll have to somehow encode the proper font
formatting to send along with the text. Presumably the 'font'
method in RTF::Writer might help do the job. But other monks may
have better ideas.