[pdftex] mirrored output

[Antonio Carlos Ribeiro Nogueira]

Dear Cesar,

I am interested to mirror a pdf file using pdflatex. Did you have any 
answer about your question posted in the pdflatex mailing list?
I am needing to know how to do it because I am publishing a book in 
Industrial Ventilation in the University where I work. I am sorry for my 
poor english.
If you kind help me I would like to thanks in advantage.

Sincerely

Antonio Carlos Ribeiro Nogueira