Offer a way to export an email newsletter to a PDF

I am going to start creating my monthly newsletters within the new bulk email system using a template.  Before this, I created the newsletter in a different publishing program, uploaded it to the File Repository, and then linked to it on our website, where I post the past year's worth of newsletters.  

Can there be a way to export the newsletter done in the new system to a PDF so I can continue to offer the option to look at past newsletters on our website?