Metadata - your files talk for you

http://www.wefightcensorship.org/article/metadata-your-files-talk-youhtml.html

Publisher:  We fight censorship
Year Published:  2013  
Resource Type:  Article
Cx Number:  CX15058

Few Internet users are aware that many file formats contain hidden data, or metadata. Text processing files or PDFs are likely to contain the name of the author, the date and time of the creation of the file, and often even part of its editing history.

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