No just the data folder itself only contains the documents, but as file FILE00001.pdf

I do this with pg_dumpall and rclone. Once a day I export the database with pg_dumpall like this :

docker exec -i paperless pg_dumpall -c -U paperless > /backup/datenbank/homeserver-postgrescontainer-`date +%d.%m.%Y`.sql

And then I copy this file and the data folder encrypted to a secure cloud (Hetzner Storagebox)

More info

Rclone and Read more about Postgresbackup