Earlier quoted context omitted.
That's huge though, you need to know you will be able to open your documents in a decade or more.
I don’t understand your position at all. If you want to open your documents in a decade or more, redesigning a “cleaner” PDF would only make that less likely. If you want something cleaner than PDF, then XPS is already here. I don’t understand what scenario we’d have where designing a completely new format would give us better software support. So, the reason I’d see for designing a new format is if neither XPS nor P…
I don't think there is a solution, PDF is with us for the foreseeable future. That doesn't mean I like it as a format or can't point out the problems with it.