PDF Metadata Editor guide
Read and update a PDF’s title, author, subject, and keyword fields without uploading the document.
What this tool does
The PDF Metadata Editor opens a readable PDF and loads four standard document-information fields: title, author, subject, and keywords. You can revise those values and download a newly saved PDF. Keywords are entered as a comma-separated list and stored as separate keyword items.
Metadata is information about a document, not the visible content printed on its pages. PDF viewers, operating systems, search tools, accessibility workflows, archives, and document-management systems may display or index these fields. Updating a title field does not change a heading drawn on page one, and changing author metadata does not prove who created or approved the document.
The save operation also updates the modification date. It does not intentionally erase every other metadata location. PDFs can contain XMP packets, attachments, annotations, form data, comments, revision information, embedded-file metadata, and application-specific values beyond the four editable fields shown here.
How to use it
- Select one readable PDF.
- Wait for existing document information and page count to load.
- Review and edit title, author, subject, and comma-separated keywords.
- Select Save metadata to PDF.
- Download the output and inspect its properties in the intended PDF viewer.
To clear a displayed field, leave it empty before saving. Keep keyword phrases concise and relevant to the document rather than adding unrelated search terms.
Benefits
- Reads existing standard PDF information fields
- Updates four useful descriptive properties
- Converts comma-separated keywords into a PDF keyword list
- Preserves page content while saving a revised document
- Keeps the file on the current device
Privacy, signatures, and records
Editing metadata is not a complete sanitization or anonymity process. If a document contains personal, confidential, location, revision, attachment, or hidden-layer data, use a specialized inspection and redaction workflow. Deleting an author string does not guarantee that the author cannot be identified elsewhere.
Saving changes can invalidate or alter the status of digital signatures because the PDF bytes have changed. Keep the untouched original for contracts, official records, signed files, archival material, and any workflow where provenance matters.
Practical notice: Metadata fields are descriptive and user-editable. They are not proof of authorship, authenticity, ownership, approval, or legal status.