PDF Metadata Editor
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Document Properties
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Best Free PDF Metadata Editor Online
Welcome to the ultimate privacy and document management tool. Our PDF Metadata Editor allows you to instantly view, modify, or completely wipe hidden tracking information embedded within your PDF files. Operating entirely client-side, this tool ensures your sensitive documents never leave your computer.
What is PDF Metadata?
Whenever you create or edit a PDF using software like Microsoft Word, Adobe Acrobat, or Google Docs, the software automatically embeds hidden information into the file's dictionary. This metadata can include:
- The exact date and time the file was created and modified.
- The name of the author (often pulled directly from your computer's user account).
- The specific application and operating system used to generate the document.
While useful for internal archiving, sharing this metadata publicly can pose privacy risks.
🔒 Absolute Privacy
Zero server uploads. We utilize the powerful pdf-lib JavaScript engine to parse and rewrite your document's metadata dictionary locally in your RAM.
🧹 1-Click Sanitization
Protect your anonymity before distributing files. Simply hit the Clear All button to wipe the Title, Author, Subject, and Creator fields instantly.
📈 SEO Optimization
Uploading PDFs to your website? Search engines index PDF metadata. Use this tool to inject keyword-rich Titles and Subjects to help your documents rank higher in Google.
How to Edit or Remove PDF Properties
- Upload File: Drag your `.pdf` document into the secure upload zone above to load the reader.
- Review & Edit: The tool will instantly populate the form with any existing metadata hidden in the file. Type in the boxes to edit, or click Clear All to sanitize.
- Export Document: Click Save Metadata. The script will write the new dictionary into the binary file and generate a fresh PDF for you to download.
Frequently Asked Questions (FAQ)
Can this tool change the Creation Date?
To ensure standard file integrity and compliance, this tool allows you to edit the descriptive metadata (Author, Title, Creator). However, whenever you save the new file, the Modification Date is automatically updated to the current time to reflect the changes accurately.
Will changing metadata affect my document's text or layout?
No. Metadata is stored in a separate dictionary layer within the PDF architecture. Editing or wiping these fields has absolutely zero impact on the visual text, images, fonts, or layouts of your pages.
Are there file size limits?
Because the processing relies on your device's hardware instead of cloud servers, there are no artificial limits. You can edit the metadata of massive documents instantly without waiting for long upload times.