Podemos usar db2dvi, db2html, db2pdf, db2ps, db2rtf para pasar a dvi, html, pdf, ps, rtf
Podemos usar para docbook2dvi, docbook2man, docbook2ps, docbook2tex, docbook2txt, docbook2html, docbook2pdf, docbook2rtf para pasar a dvi, man, ps, latex, texto, html, pdf, rtf