PDF Metadata Editor
Edit a PDF's title, author, and subject metadata in your browser. No upload, no watermark.
Built with pdf-lib (MIT), self-hosted.
How to use this tool
- Choose a PDF — existing metadata is pre-filled.
- Edit the title, author, or subject.
- Click Save Metadata & Download.
Edit a PDF's title, author, and subject metadata in your browser. No upload, no watermark.
How it works
Every PDF file contains an information dictionary that stores metadata such as the document title, author name, subject, and keywords. This metadata is separate from the visible page content and is used by PDF viewers, operating system search indexes, and document management systems to categorize and find files.
The PDF Metadata Editor reads this dictionary from your uploaded PDF, displays the current values, lets you edit them, and writes a new PDF with the updated metadata. No file is sent to a server -- all editing happens in your browser.
Editing metadata is useful for correcting an automatically generated title, removing an author name before sharing a document publicly, or adding keywords to improve discoverability in a document management system. The page content of the PDF is completely unchanged.
Worked example
Fix an incorrect title before sharing a PDF
- Upload the PDF whose title currently shows as the original filename or a generic string.
- Clear the Title field and type the correct document title.
- Update the Author field with the correct name if needed.
- Click Save and download the updated PDF.
A PDF with corrected metadata that displays the right title in the viewer title bar and in file search results.
Common mistakes to avoid
- Expecting that changing the Title field also renames the file on disk -- they are completely independent.
- Clearing the Author field and assuming all personal information is removed -- other metadata like Creator or XMP properties may still contain identifying information.
- Using this tool on a password-protected PDF without removing the password first -- encrypted PDFs may block metadata editing.
Key terms
- PDF information dictionary
- A metadata structure inside a PDF file that stores properties like Title, Author, Subject, Keywords, Creator, and Producer.
- Document title
- The Title metadata field, often shown in the browser tab or PDF viewer title bar. Different from the filename.
- Creator vs. Producer
- Creator is the application that generated the original document (e.g., Microsoft Word); Producer is the software that converted it to PDF.
Frequently asked questions
- What metadata can I edit?
- Title, author, and subject. These appear in PDF readers and document properties.