This method of storing metadata is robust since as long as the content of the document is available, the metadata will also be available, even to the point of printing the document, then scanning it and performing OCR on it.

Furthermore, the actual Visual-Meta contains instructions for how to implement it, in plain English language, which will allow any developer to integrate Visual-Meta import or export, now, and in hundreds or thousands of years in the future. Full Visual-Meta Example Including Intro Text