encrypted printing with cups

[Grant]

> Your're right - there are no debug messages to denote
> if encryption really takes place. You probably need
> to use some network spy software ...
>
> Helge

I'm trying to print in an encrypted manner across the internet.  If I issue 'lpr file.pdf' from one machine to a machine across the internet running SSL cups, should the file be transmitted encrypted?  How can I put the cups server in SSL "mode"?

- Grant