Attach pdf file to a mass email

I think the mass email is great! But I would like to attach a pdf to send out, for example, the churches newsletter. Right know I'm sending over multiple pictures of the newsletter and I think sending one pdf is much easier and looks cleaner to the members.

pdf or even an html option where we can drop something in and have it linked to other things!

Being able to attached PDF Documents would be vital to wanting to go ahead with using this software.