On November 11, 2017, Apple finishes the review of version 11.1.1 of PDF Notes S and it became Ready For Sale.
On November 10, 2017, I uploaded version 11.1.1 of PDF Notes S to App Store
App Store https://itunes.apple.com/app/id961336139
This version has fixed bugs. This version does not save edits. It will be available in the future version.