A family of Microsoft word processing software products for creating web, email, and print documents.
Office 2007 doesnt natively have the ability to create pdf files (Office 2010 does) it relies on a plug-in
The OP said:
"I had stated that I ran the MS Saveaspdf addin but I didn't uninstall it first because I don't know where it is."
This is entirely possible if the add-on was pre-installed, as mine was.
The OP said:
"UPDATE: I found it, uninstalled it, installed it, and tried it... No Good."
The OP's issue is why it used to work and why it quit, and how to get it to work again. I have the same problem (2015) and generic comments on Office 207 aren't helpful.