Continue following best practices to mitigate surveillance.
The slimy part of FISA has always been that the data it collects about overseas communications never sunsets. Moreover, Federal law enforcement officials used to be able to troll through the data without a lot of oversight. In 2020 and 2021, there were 270 thousand questionable uses of the data by the FBI looking for dirt — not on foreigners (who are fair game apparently) — but on citizens. The furor over that is what fueled the failed opposition to re-authorization, which succeeded primarily because the FBI insists that the data provides early-warning of terrorists plots and that [the FBI] promises to play fair in the future by digging for dirt only on terrorists here and abroad.
I'm mystified that poppler-utils is not a viable option. Of course the *.pdf file would have to include the text itself, but many do.