Inserting/Updating XMP in a PDF?
Question
How can I insert/update some XMP metadata into a PDF file preferably using java ?
Solution
Have a look at pdfmark from CrossRef.
OTHER TIPS
I found that the PDFBox library can be used to insert or extract those data. See http://plindenbaum.blogspot.com/2010/07/pdfbox-insertextract-metadata-frominto.html
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