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Getting PDF metadata


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I have found some info on manipulating PDF documents here http://www.php.net/manual/en/ref.pdf.php and elsewhere, but I can't get exactly what I need.


What's the easiest way to get metadata (author, title, keywords, etc.) from a PDF document? Basically I want the opposite of



Is there an easy "get info" function somewhere?

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Yeah, I saw that. Was hoping for something more built-in.

Well, do you just want to know if it's a PDF file? Because it's kind of hard to check that without having a program that can read PDF files and then give the okay if it's a PDF file following the "standards" or whatever.


If you just want a quick look at the file, you could read the first 4 letters of the file. It should say: %PDF

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