Labels Move and Resize when Exporting Layout

[KevinTate]

Whenever I export a map layout to PDF for printing/sharing, my labels change. I have formatted them to my liking and locked movement of the labels. However, whenever I export no matter the file or settings I check, they always revert to a default. 

Wondering if anyone else has experienced this and if there is a workaround. See below for a before screenshot and the resulting pdf file. 

Thanks!