line numbering in pdf

[Wolfgang Engelmann]

I would like to export a pdf file from lyx in which the lines are 
numbered for each page. Under User guide B12 is a description, which I, 
however, do not understand enough.

I wouldn't mind, as an alternative, to do the line numbering in the pdf 
file directly (which pdf reader? Okular? I use Debian.).

The reason is, that I would like to send the document to a coauthor for 
question, for which I should tell him where to look at.

Wolfgang