View PDF metadata hidden inside any document.

PDF metadata is information stored inside a PDF that describes the document rather than forming part of its visible content. It typically includes the title, author, subject, keywords, the application that created the original document (Creator), the software that produced the PDF (Producer), creation and modification dates, and a Trapped flag used in professional printing. PDFs can also carry an XMP packet — an XML block with the same kind of information — and arbitrary custom properties.

Metadata leaks more than most people expect. A PDF exported from a work laptop can reveal your full name, your employer's software licences, internal file paths, and the exact time you wrote it. Before publishing a document, sending it to a client, submitting it anonymously, or filing it as a record, it's worth checking what's in there. Editing is equally useful in the other direction — accurate titles and authors make documents searchable and look professional in a document management system.

No. Metadata sits in a separate part of the file structure — the document Info dictionary and, optionally, an XMP packet. Editing it does not touch the pages, text, images, or layout that a reader sees. This is why you can correct a document's author without re-exporting it from the original application.

The Info dictionary is the original, simple key/value metadata store built into the PDF format. XMP (Extensible Metadata Platform) is a newer XML-based standard that can hold richer, structured metadata and is often written by Adobe software. Many PDFs contain both, and the two can disagree. This tool shows you the Info dictionary as editable fields and displays the XMP packet, and the “Remove all metadata” action clears both.

Windows Explorer, macOS Finder, and most desktop search tools cache document properties in an index that doesn't refresh immediately. The saved PDF itself is correct — open it in a PDF reader and check its document properties to confirm. The cached entry usually updates on its own, or you can rename the file to force a re-index.

Only if the PDF is not encrypted in a way that blocks reading its structure. The tool attempts to read protected files and will tell you if it can't. For fully encrypted documents, remove the password in your PDF reader first, then edit the metadata here.

That usually means the file is encrypted with a password, or its internal structure is damaged. Try opening it in a PDF reader and re-saving or printing it to a new PDF, then load that copy. If the file opens nowhere, it is likely corrupted rather than unsupported.

Some PDF software rewrites the Producer field to identify itself whenever a file is saved. This tool deliberately preserves whatever you type, including an empty value, so the field reflects your intent rather than the editor's name.