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How to Check a PDF's Metadata in Acrobat, Windows, macOS and the Command Line

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A PDF stores its metadata in two places: the Info dictionary and an XMP packet, and a file may contain either or both. Tools such as Acrobat, browsers, Windows and macOS each reveal a different subset of this information, so they can show conflicting results for the same file. Acrobat's Document Properties dialog displays the basic fields, and a paid version can also expose the XMP packet through Additional Metadata. Chrome offers a quick alternative listing title, author, dates and producer, while Windows Explorer and macOS Get Info often show only file-system dates rather than the dates embedded in the document.

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