What did you find? There's nothing that interesting that I could see.

  8.\ Technical\ Barriers\ to\ Trade\ Chapter.pdf 
  Title:          TTP TBT Chapter Text - Jan 2015
  Author:         LESLIE, Susannah (TND)
  Creator:        Acrobat PDFMaker 11 for Word
  Producer:       Adobe PDF Library 11.0
  CreationDate:   Wed Nov  4 19:59:17 2015
  ModDate:        Wed Nov  4 19:59:40 2015
  Tagged:         yes
  Form:           none
  Pages:          38
  Encrypted:      no
  Page size:      595.32 x 841.92 pts (A4) (rotated 0 degrees)
  File size:      201868 bytes
  Optimized:      yes
  PDF version:    1.5

  13.\ Telecommunications\ Chapter.pdf 
  Title:          Legal Scrub Telecommunications NZ Review
  Subject:        
  Keywords:       
  Author:         
  Creator:        Acrobat PDFMaker 11 for Word
  Producer:       Adobe PDF Library 11.0
  CreationDate:   Wed Nov  4 20:02:38 2015
  ModDate:        Wed Nov  4 20:02:54 2015
  Tagged:         yes
  Form:           none
  Pages:          22
  Encrypted:      no
  Page size:      612 x 792 pts (letter) (rotated 0 degrees)
  File size:      127798 bytes
  Optimized:      yes
  PDF version:    1.5

What did you find? Or what can be in it?

Maybe the file was stolen from phewitso:s computer? Or someone who actually knew what they were doing and adjusted the metadata.

using pdftk, I see little more than author's name, chapter/bookmark titles, and dates. Anything else in there?