If it "... was not saved in any way ..." then what do you have to work with? Are you attempting to learn from a printed sheet of paper's provenance? If a printed sheet is all you have, you won't learn much. If you have a file, try the Word document's "metadata". An Internet query for "word metadata" will yield lots of articles about the information stored with a Word document. You don't need a special tool to reveal the "hidden" information; it's not really "hiding". See the document's properties (right-click Word document, choose properties) "Details" tab. Or get a special tool if you'll be doing bulk documents. "Metadata" is the fifty dollar word for "things in the Word document that people neglect to review."

If it "... was not saved in any way ..." then what do you have to work with? Are you attempting to learn from a printed sheet of paper's provenance? If a printed sheet is all you have, you won't learn much. If you have a file, try the Word document's "metadata". An Internet query for "word metadata" will yield lots of articles about the information stored with a Word document. You don't need a special tool to reveal the "hidden" information; it's not really "hiding". See the document's properties (right-click Word document, choose properties) "Details" tab. Or get a special tool if you'll be doing bulk documents. "Metadata" is the fifty dollar word for "things in the Word document that people neglect to review."