Interoperability Rules to achieve Document Freedom

To celebrate Document Freedom Day, I have written a short white paper about interoperability. It starts with a short synopsis of the evolution of document exchanges since the days of the printed file, and ends with four basic rules to improve interoperability to achieve document freedom.

As usual, the Hybrid PDF can be accessed by every PDF reader, and can be opened as a regular ODT file by LibreOffice users. Another advantage of free software, which should at least raise a question in the mind of proprietary software users.