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The Info dictionary often holds the author's name (usually the operating system or Office username), the software used, and creation and modification timestamps. XMP metadata can add document IDs, revision history, and application details, and filled form field values are shown too. If you're about to publish or share the file, run Remove Metadata afterward.

The Info dictionary is the older set of fixed fields: Title, Author, Subject, Keywords, Creator, Producer, and dates. XMP is an XML block with namespaces such as Dublin Core, xmp, and pdf, and it can hold far more. The two are meant to agree but often don't, which is why the tool shows both.

PDF dates are stored as strings like D:20240101120000Z. The tool converts them to a readable date in your local time zone, so the hour can differ from a viewer that shows the raw value or uses a different zone.

Look at the Creator field (the application that made the original document, such as Word or InDesign) and the Producer field (the library that wrote the PDF, such as Acrobat Distiller or a PDF engine). The XMP section usually repeats them as xmp:CreatorTool and pdf:Producer.

The Interactive Form Fields section lists each field name with its current value, or Not Set when empty, which is a quick way to check what data a filled form contains before sending it.

The Copy Metadata as JSON button puts the Info dictionary fields on your clipboard as a JSON object. The XMP tree and form field values are displayed on the page but aren't included in the copied JSON.

This tool is read-only. Use Edit Metadata to change the title, author, keywords, and dates, or Remove Metadata to strip everything before publishing.

No. The file is parsed by pdf.js in your browser as soon as you select it, and nothing is transmitted, so you can inspect a sensitive document before deciding where it goes.