Hello poj, Thanks for your response. When I run your code, I got output like this,

(
  "ModDate",
  pack("H*","4a7878cbbb7bff8a4b3b937b7fe3d5e12664278a100905"),
  "Subject",
  "L\27}\xCB\xBBs\xE2\x89JN\xFDz\x7F\xE4",
  "CreationDate",
  pack("H*","4a7878cbbb75ff87493a92737eedd6ed51"),
  "Producer",
  pack("H*","4f213894e923bb9f3d62d13e23b889b179742683101717f1abd548ddd
+a263b6365d
adb6e92"),
  "Title",
  pack("H*","4c372697ee36a6d1593c927a7bf9d3e74e7433e96c1971b4bfd35f8eb
+7063b696ed
dc77288250087"),
  "Author",
  pack("H*","572d2194ec23b8de594ece2f29a097bd687450c252494da3acce5392f
+9"),
)

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When I extracted the xmp meta file in xml format using this module, it is completely having junk characters. When I open the document properties, it is showing the modified data clearly. Any Idea?