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PDF Metadata Editor

View and edit PDF title, author, subject, keywords, creator and producer, keep XMP in sync, or strip all metadata before sharing. Runs in your browser.

Choosing a file shows its current properties. Edits apply to every file you select.
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Every PDF carries hidden properties: a title shown in the browser tab and in search results, the author name, the software that created it, keywords and dates. They often leak more than intended — a colleague's name, an old project title, the program you used. This editor shows the current values, lets you change or delete each one, keeps the newer XMP metadata in step, and can strip everything before you publish a file.

How to use this tool

  1. Choose a PDF: its current properties appear in the table.
  2. Type new values in the fields you want to change; leave a field blank to keep it, or enter a single "-" to delete it.
  3. Tick "Remove all metadata" instead if you want a clean file for sharing.
  4. Press Calculate, check the "Saved file" column and download the PDF.

Formula

Info dictionary: /Title /Author /Subject /Keywords /Creator /Producer /CreationDate /ModDate ↔ XMP: dc:title, dc:creator, dc:description, pdf:Keywords + dc:subject, xmp:CreatorTool, pdf:Producer

PDFs can store properties twice: in the classic Info dictionary and in an XML (XMP) packet. Adobe Acrobat prefers XMP when both exist, so changing only the Info dictionary can leave the old title visible. When a file has XMP, this tool edits the matching XMP entries too, keeping any other XMP data such as PDF/A identification.

Example

A contract exported from a word processor shows Title "Draft v3 – internal" and Author "j.smith". Entering Title: Service Agreement 2026 and Author: - saves a file whose Title is "Service Agreement 2026" and which has no author, in both the Info dictionary and the XMP packet. The page content and file layout are unchanged.

What "Remove all metadata" removes

The document Info dictionary (title, author, dates, creator and producer), the document XMP packet, XMP packets attached to pages or images, and PieceInfo application data, which programs such as Illustrator use to store private editing data. The removed objects are dropped from the file, not just unlinked. The page content, fonts and links stay the same.

Frequently asked questions

Why does Acrobat still show the old title?

If you edited the file elsewhere, its XMP packet may still hold the old value. This tool updates XMP together with the Info dictionary, so both agree.

Can I edit an encrypted PDF?

No. Remove the password or restrictions first, because changing an encrypted file would require re-encrypting it.

Are my files uploaded?

No. The PDF is read and saved entirely in your browser.

Last updated:

Cite or embed this tool
APA

kakaoCalc. (2026, November 8). PDF Metadata Editor. https://kakao.mobile/tools/pdf-metadata-editor/

MLA

“PDF Metadata Editor.” kakaoCalc, 8 Nov. 2026, kakao.mobile/tools/pdf-metadata-editor/.

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