The problem is: PDF was made for
output, for viewing and/or printing, but
not for editing. PDF is basically Postscript, which is a printer language.
In theory, you can grab informations from PDF files (as long as permissions allow it, or you need to use something else than Windows...
) and this seems to be a question that is very "popular" in Taiwan's "academic" world. (I really don't know why...
)
But since it was never meant to be used that way, you will lose a lot of formatting and other informations. So, just forget it.
I don't know about the current status of Chinese OCR, but OCR for alphabet languages (English, Spanish, German...) can also handle PDF these days, so maybe that could be a (expensive?) solution for you...
--
"I am at a rough estimate, thirty billion times more intelligent than you. Let me give you an example. Think of a number, any number."
"Er, five."
"Wrong! You see?"
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