Wdym by that? As in translate the language? Because if so, I did find an article on best softwares for translating the language of a pdf. Granted, they also promoted their own software, but they did list quite a few other softwares.
Yeah, I think it's this one. I haven't looked into the softwares involved in the list nor smartcat themselves, so just be wary.
https://www.smartcat.com/blog/5-free-tools-to-translate-pdf-files