Mengedit metadata .pdf di Ubuntu

Installing PDFTK:

sudo apt-get install pdftk

Edit Existing Meta-Data:

pdftk book.pdf dump_data output report.txt

You can then edit the data in report.txt which we can later upload back to the pdf. The text file will contain key value pairs like:

InfoKey: Title
InfoValue: Coders At Work
InfoKey: Author
InfoValue: Peter Seivel
InfoKey: Subject
InfoValue: Programming 

Update PDF Meta-Data:

pdftk book.pdf update_info report.txt output bookcopy.pdf

sumber: http://jkwiens.com/2010/01/04/changing-pdf-metadata-on-ubuntu/