On 6 June 2010 00:37, Maciej Piechotka
PDF is not just simplified, compressed encoding of PostScript. Or at least - LaTeX have some features PDF-only.
For example PDF can have hyper-links (both to local and external content). It can be scripted in JavaScript (don't ask me why) and can have form (OK. So I can fill them and print probably).
The form stuff is also for online submission, and the javascript allows editing of what is possible. For example (requires Adobe Reader plugin, which I don't have and thus haven't seen it myself) this form (I believe) auto-fills in some details and saves a copy online, etc.: https://forms.australia.gov.au/forms/aec/Electoral%20enrolment/
Regards
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