Where and how do I install a TTF font?

["Nelson A. de Oliveira" <naoliv@gmail.com>]

(CC me on answers, please)

Hi!

I have a PDF (http://naoliv.googlepages.com/giap.pdf) that uses a
Bar25if font (http://naoliv.googlepages.com/Bar25if.ttf).

Installing it to a directory /usr/share/fonts/truetype/ttf-barcod25
and registering it with "defoma-font reregister-all
ttf-barcod25.hints" seems to work with Evince. But trying to open the
PDF with xpdf, acroread or trying to print it, it doesn't work (the
bar code font isn't displayed on them).

Do anybody knows what I have to do to have this font working on my
system, please?

Thank you very much!

Best regards,
Nelson