Making documentation from 1 source.
Multiple types of output:
App - PDF - Printed manual
The App runs on phone / tablet / computer.
Some of the many advantages of documentation as an App:
In the past, a printed Manual was a must. However, nowadays it's not always required to have all Operating Instructions in printed form.
Check the "Blue Guide" on the implementation of EU product rules (32nd page, Footnote 100)