Edit PDF Metadata (Free, Private, No Upload)
Every PDF contains hidden metadata fields that store information like the document title, author name, subject, keywords, creation date, and software used to generate the file. While often overlooked, this metadata plays a crucial role in document organization, search engine optimization, and professional presentation. This tool lets you view and modify all standard PDF metadata fields completely offline, processing everything directly in your browser without ever uploading files to a server. Simply load your document, review the existing metadata, make any changes you need, and save the updated file in seconds. Because all operations happen locally on your device, confidential documents like legal contracts, financial reports, medical records, or proprietary business files remain completely private and secure. The tool is particularly valuable when you need to clean up metadata before publishing documents publicly, ensuring no sensitive author names or internal company information leaks out. It's also essential for fixing incorrectly scanned documents that show garbled metadata, adding proper keywords to improve document discoverability in digital archives or content management systems, standardizing author information across corporate document libraries, updating outdated titles or subjects when repurposing existing files, or preparing academic papers with properly formatted metadata for institutional repositories. Students can use it to add their names and course information to assignments, researchers can ensure their publications contain accurate authorship details, and businesses can maintain consistent branding by embedding company names in document properties. The metadata editor supports all standard PDF fields including title, author, subject, keywords, creator application, producer, creation date, and modification date, making it a comprehensive solution for professional document management without the need for expensive desktop software or risky cloud uploads.
- Click Choose PDF and open your file.
- Edit the metadata fields shown in the form.
- Press Save PDF to download the updated document.
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FAQ
Is it private?
Yes, this tool processes everything directly in your web browser using JavaScript, which means your PDF files never get uploaded to any server or cloud service. All metadata editing operations happen on your local device, ensuring complete privacy for sensitive documents like confidential business contracts, personal financial records, or proprietary research papers.
What metadata fields can I change?
You can edit all standard PDF metadata fields including title, author, subject, keywords, creator application, producer, creation date, and modification date. These fields appear in document properties dialogs across all PDF readers and are indexed by search engines and content management systems, making proper metadata crucial for document organization and discoverability.
Does it alter the document content?
No, only the hidden metadata fields embedded in the PDF structure are updated while all visible pages, text, images, fonts, and formatting remain completely unchanged. This makes it safe to update metadata on finalized documents without any risk of corrupting the actual content or requiring re-approval of the document body.
Are there size limits?
The tool works for most PDF files regardless of page count, with practical limits determined by your device's available memory rather than arbitrary file size restrictions. Most modern computers can easily handle documents with hundreds of pages, while very large files exceeding several hundred megabytes may require more RAM.
Does it work on mobile?
Yes, the metadata editor works in modern mobile browsers on both iOS and Android devices, allowing you to view and edit PDF properties on smartphones and tablets. While the interface is optimized for desktop use, mobile users can successfully update metadata fields using touch input on any reasonably sized screen.