Wow, it's more tricky than I thought.
Since it was easy to print by chapters(select chunks by book and configure the display to show no hyperlinks and footnotes, then move to next book, print, move, print, ...) and I thought it made little difference if I told other people how to do it or if I did all the dirty jobs and prepared a readily printable file. Especially when I thought the font was ugly and wanted to change it. But that COULD make a difference, hmm...
Also, even if Perseus content was in the public domain, from my position as a webmaster and website developer it's a no-no to redistribute other website's content without permission.
(that's why I deleted the original post from this thread)
And I'd have to respect that point, anyway.
I had seen a website that allowed no print, no right-mouse-button-menu(including copy, save, etc) by an unknown(to me) web technic. That kind of technic could quench the desire (like mine) to copy the content.
I'll have to tell those perseus people about it.