Quote:
For example, it is reportedly possible to write PDFs which display different content in different operating systems, browsers or PDF readers…
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I knew this already, as I’ve come across PDFs that display nothing but “you must download Adobe Reader to view this document.” :\
PDF is not actually a bad format, but Adobe keeps adding more and more crap to justify every new release of their software. Scripting, embedding, and all that garbage are what open the security holes. Maybe it’s time to start rejecting documents that don’t follow the sane
PDF/A subset.