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PDF Metadata Editor

Read and update PDF document metadata privately in your browser.

Privacy: your files never leave your device. All processing happens locally in your browser.

How to use

  1. 1.Choose a PDF file from your device and review the detected document information.
  2. 2.Edit the title, author, subject, keywords, creator, producer, or valid dates you want to change.
  3. 3.Save the metadata and download the separate PDF copy, then verify it in your preferred viewer.

About PDF Metadata Editor

PDF Metadata Editor lets you inspect and update the document information stored inside a PDF without sending the file to a server. Choose a PDF from your device and the tool reads common entries such as title, author, subject, keywords, creator, producer, creation date, and modification date. Change the entries you need, then download a separately named PDF. The original file remains unchanged, so you can compare the result before sharing it. This is useful when a document needs a clearer title in a file viewer, a corrected byline before delivery, more useful search keywords for an internal archive, or a consistent creator label across a set of reports. The processing happens in this browser, which makes the tool suitable for routine local document cleanup when privacy matters.

PDF metadata is document information, not the visible words printed on a page. Editing a title does not redraw a cover page, change a heading, alter the filename, remove hidden content, or redact personal information. Likewise, replacing the author field does not prove authorship or create a signature. Use a dedicated redaction workflow if confidential text, annotations, attachments, or page content must be removed. This tool is intentionally narrow: it writes standard information entries and leaves page artwork, form fields, bookmarks, links, and passwords alone. However, saving any changed PDF can invalidate an existing digital signature, even though the visible page artwork is unchanged. Keep the original signed file and use a signature-aware workflow whenever signature validity matters.

Text entries can be cleared deliberately. If a title, author, subject, keywords, creator, or producer box is empty when you save, the downloaded copy receives an empty value for that field. Keywords are entered as a comma-separated value and are preserved in the saved document-information entry. Dates are handled more cautiously. Enter dates in the YYYY-MM-DD format and the tool validates the actual calendar date, including leap years, before it saves. A blank date is treated as leave unchanged, rather than as a request to remove a date entry, because standard PDF date removal is not a dependable public operation in this local workflow. Review date changes carefully if a recipient relies on document timestamps.

Some PDF viewers display only a subset of these fields, and different viewers can label the same information differently. For example, a viewer may prioritize the title over the filename, while an archive system may read keywords but never display producer information. Open the downloaded copy in the viewer or system that matters to you and confirm the entries there. PDFs with malformed metadata, unusual vendor extensions, password protection, or damage may not load. The tool rejects protected or unreadable files safely instead of trying to bypass protection. It also does not promise to repair a damaged document or normalize every vendor-specific field.

A practical workflow is simple: keep the original, inspect the entries, update only the fields you can verify, save a new copy, and check that copy in the destination viewer. For recurring work, use a predictable title and creator convention so people can recognize documents in browser tabs, downloads, and internal search results. If you only need to change the visible filename, rename the file in your operating system instead. If you need to add page numbers, rotate a scan, make form fields permanent, add a visible watermark, or merge documents, use the corresponding PDF tool. PDF Metadata Editor keeps the operation local and focused, giving you a clean download without changing the pages themselves.

Methodology & sources

The tool loads a standard PDF with pdf-lib in the browser, reads its common document-information entries, validates edited calendar dates strictly, writes the selected text and keyword values, then saves a separate local copy. Blank text values are written as empty entries; blank dates preserve the source date. Protected or unreadable PDFs are not bypassed.

Frequently asked questions

Does editing metadata change the visible PDF pages?
No. This tool changes standard document information only. It does not alter page text, images, annotations, or the filename.
Can I clear the title or author?
Yes. Leave a text field empty and save. The downloaded PDF will receive an empty value for that text entry.
Why is a date rejected?
Dates must be real calendar dates in YYYY-MM-DD format. The tool checks the format and leap years before saving.
Are my files uploaded?
No. The selected PDF is read and saved locally in your browser, and the original file is not overwritten.

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