Publish
A book has a draft and a live version. Publish creates a version and points the public book at it. The live book changes only when you publish. Uploading a new PDF does not replace the live book until you publish that draft.
The publish control is not pictured here. The live book address is:
https://flip.infuze.partners/{org}/{book}Anything that is not that published version stays private to people who can read the book in the library.