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MixTool

PDF metadata editor

See and change the hidden properties of a PDF — title, author, subject, keywords and more — or strip them out entirely.

  • Files never leave your device
  • Free · no sign-up
  • Works on phone and desktop
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What PDF metadata is and why it matters

Every PDF carries hidden information: a title, the author's name, the app that created it, creation and modification dates and sometimes keywords. This metadata shows up in PDF readers under *File → Properties*, in browser tabs and in search engines that index PDFs.

Use this editor to give documents a proper title (instead of “Microsoft Word - final_v3.docx”), correct the author, add keywords for search, or remove all metadata before sharing a file publicly so it doesn't reveal names, software or dates.

How to edit PDF properties

  1. 1

    Open the PDF

    Current values are loaded into the form.

  2. 2

    Edit the fields

    Change title, author, subject, keywords, creator or producer.

  3. 3

    Save or wipe

    Press Save properties, or Remove all metadata for privacy.

  4. 4

    Download

    Save the updated PDF; pages are untouched.

Key features

  • All standard fields

    Title, author, subject, keywords, creator and producer.

  • See existing values

    Current metadata and dates are shown before you edit.

  • One-click privacy clean

    Wipes identifying fields and dates, including the XMP metadata block.

  • Private

    Editing happens in your browser; the file isn't uploaded.

Common uses

  • Publishing PDFs online: A clear title improves how the file appears in Google results and browser tabs.
  • Sharing anonymously: Remove your name and software details before sending a document.
  • Organising archives: Add consistent titles and keywords to company documents.

Tips and good to know

  • Search engines often use the PDF title as the result title — make it descriptive.
  • Removing metadata doesn't remove names written inside the pages themselves.

Frequently asked questions

What is PDF metadata?

Information stored inside the file about the document — title, author, subject, keywords, the creating app and dates — separate from the visible pages.

Does editing metadata change my document?

No. Only the properties change; every page stays exactly the same.

How do I remove personal information from a PDF?

Press Remove all metadata. The title, author, subject, keywords, app names and dates are cleared.

Is my PDF uploaded?

No. The properties are edited in your browser.