saving email into DMS

Gw 7.0.3 on NW65 (soon to be running on Linux though)--our partners are
would like to implement procedures to save email in the libraries just like
any other corresondence. Only option appears to be WP format, but that is
an edit-able file unfortunately, at least by the creator. Does GW 8 have
any capability to save as a pdf per chance? Are there any 3rd party tools
available to do so?