Edit PDF Metadata

Set or clear the title, author, subject, and keywords stored inside your PDF.

Drop a PDF to edit its metadata

or click to browse

Choose File
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Metadata Updated

How to edit PDF metadata

  1. Upload a PDF. The existing title, author, subject, and keywords are loaded into the form (blank if the PDF has none).
  2. Edit the fields. Leaving a field blank clears that property from the document — useful when a template has stale author info.
  3. Click Apply Metadata. pdf-lib writes the new values into the PDF's Info dictionary and resets Producer / Creator to "AllPDF.tools".

Why metadata matters

Every PDF stores an invisible set of properties — title, author, the software that produced it, creation date. They show up in file managers, in document management systems, and when you search "author:alice" in a PDF archive. If you download a template someone else built, those fields may still say their name — embarrassing when the client opens properties and sees the wrong firm. Stripping or rewriting metadata takes a second and avoids that.

Frequently asked

Does this remove hidden tracking data?

It clears the standard Info dictionary. Truly hidden data (XMP metadata blocks, embedded JavaScript, invisible form fields) is not scrubbed — use Flatten PDF on top if you need a really clean output.

Can I batch-update many PDFs at once?

Not today — this page processes one file at a time. Batch metadata is on our roadmap.

What format for keywords?

Comma-separated, like invoice, q4, 2026. Search tools split on commas and index each term separately.

Do dates get updated?

ModDate (modification date) is set to now automatically when you save. CreationDate is preserved unchanged — that is the convention so you can still see the document's original age.

Privacy: Metadata reading and writing run locally with pdf-lib. The file never leaves your device, and no metadata is logged on our side.