If you create a Word document, you can create a PDF of it. If
you create a spreadsheet, you can PDF it. If you create a JPG, you
can PDF it. PDF writers need an input from something else.
Effectively when you PDF, you print but to a file that PDF readers
can convert back. That is why PDF writers appear in your list of
pirnters.
RH generates a Word document, PDFs it and then trashes the
doc as you didn't want it. It is the only way it can be done.
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