History: I have only been at my current employment for a few months and was not able to learn how some of these documents were created from my predecessor.
After finally getting to the edit screen, if I preview the PDf, it displays some of the areas in different fonts. It even shows some serif fonts as sans-serif. I'm not sure why this would be happening. If I view the original document, this is not the case. None of the missing fonts is serif - they are all some version of TimesNewRoman except for a SymbolMT.
Any ideas why this would be happening?