Changing font in LaTeX 

Newsgroups: comp.text.tex
> Now here is a question. Let say I have Type 1 font bookman. What would be a
> exact syntax to make all text in the document to be bookman?

What's do you mean by "I have Type 1 font bookman"? If you say that you have all the files at the right place, and that you have the bookman package, then

\usepackage{bookman}

That's all

Changing font in LaTeX 

> Another one, what if you want to have multiple fonts?
> How do you switch between them?

You have to do it by hand.

Once per installation, setup fonts ` tfm ` font tables (TeX & dvips). This can be a faff if you don't be careful. Try reading Hoenig (TeX Unbound), it did it for me.

Then in your document:

...
\def\rmdefault{pr3}
Hello world.
...
%%eof

Then if everthing is setup ok, you get it set in pr3 (Rotis Semi-Sans).

Simon Dales