What about different formats of documentations?

Is it possible to provide docs not only in html but also in pdf or ps.gz formats to be printed for hard copy?

and/of If docs already exist in such formats how I can find it?

I am looking for pdf/ps format of http://www.opengl.org/developers/documentation/Direct/direct.html for first time.

thanks for help
my email: dima at tik dot perm dot ru