This is mostly accurate, however it is an idealization to suggest that you can accept and not corrupt all of the ill-formed documents. This is in principle imp

This is mostly accurate, however it is an idealization to suggest that you can accept and not corrupt all of the ill-formed documents. This is in principle impossible. If it turns out that there is a widespread problem with many kinds of document that no longer work properly, I’ll be more inclined to say Apple is at fault. But as it stands, it just seems like ABBY has been producing bad PDFs.