PDF Metadata Viewer

Runs in browser PDF Analysis & Repair

Lists title, author, subject, keywords, creator, producer and dates, any custom properties, and every XMP entry as readers see it, then tells you which fields identify a person or a system before you share the file.

Privacy: Processed locally in your browser. Your file is not uploaded.

What is inside a PDF file, and what does repairing one do?

A PDF is a header naming its version, a body of numbered objects (pages, fonts, images, streams), a cross-reference table that records where each object starts, and a trailer pointing at the catalogue and the metadata. Metadata lives in the Info dictionary (title, author, dates, producer) and, since PDF 1.4, in an XMP stream; fonts are embedded whole, subsetted or only referenced by name. A viewer that cannot find an object walks the file to rebuild the cross-reference table — repair does the same and writes the rebuilt table, which fixes most "damaged file" errors without touching the pages.

How to use PDF Metadata Viewer

  1. Drop a PDF.
  2. Click "Show metadata".
  3. Review the Info fields, the XMP table and the privacy note.

PDF Metadata Viewer features

  • All standard Info fields and custom properties
  • Full XMP packet flattened as key/value pairs
  • Dates shown human-readable and raw
  • Privacy read-out of identifying fields
  • Copy or download the list
  • Local processing

PDF Metadata Viewer example

What a CV reveals

Input:

cv.pdf

Output:

Author: "M. Amen", Creator: "Microsoft® Word for Microsoft 365", xmpMM:DocumentID: uuid:…; privacy note lists Author, Creator, Producer, XMP

Frequently asked questions about PDF Metadata Viewer

What is the difference between Info and XMP?

Info is the classic dictionary of a few fields; XMP is an XML packet that can hold the same fields plus much more (edit history, identifiers, rights). Readers usually prefer XMP when both exist.

Can metadata reveal who wrote the document?

Often: the author field, the creating application and user names in XMP identifiers are common. The privacy note lists the identifying fields found.

Can I export the metadata?

Yes — the flattened XMP list can be copied or downloaded as a text file.

Is my PDF uploaded to a server?

No. The file is opened and processed by your browser with WebAssembly and JavaScript; nothing is sent to Mutqan Soft or anyone else. Close the tab and the file is gone. Downloading the result needs a free account — no subscription, no payment.

Can I use it on a password-protected PDF?

Yes, if you know the password: the file list asks for it once and every operation then works on the decrypted pages. The output is saved without a password unless you protect it again.

Technical notes

The Info dictionary is read through pdf-lib (UTF-16 and PDFDocEncoding strings decoded), the XMP packet through pdf.js’s metadata parser which flattens namespaces into dotted keys (dc:creator, xmp:CreateDate, pdf:Producer, xmpMM:DocumentID…).

References