PDF Metadata Editor
View and edit document descriptors (Title, Author, Subject, Keywords) 100% locally.
How to use this tool
Step 1: Upload PDF
Choose the PDF file whose metadata you want to view or edit.
Step 2: Update Fields
Modify the title, author, keywords, or creator fields.
Step 3: Save Metadata
Click save to apply the new metadata tags.
Step 4: Download
Save the updated PDF locally.
Frequently Asked Questions
What is PDF metadata?
Metadata consists of background properties stored inside a PDF file, such as the document title, author name, creation date, and creator application.
Is editing metadata secure?
Yes, the metadata is rewritten directly inside browser memory, making it highly secure and private.
Are my PDF files uploaded to any server?
No. Your PDF files are processed entirely in your web browser using WebAssembly. Your files never leave your device.
Is there a limit on the file size or page count?
No. Since the processing runs locally on your computer, there are no hard limits enforced by our server. It only depends on your system's memory (RAM).
Is this PDF tool completely free?
Yes, all PDF tools on Zaeyon are 100% free with no limits, no registration, and no ads or watermarks.
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Why Zaeyon?
Private, free, and browser-based — no account, no uploads, no compromises.
Zero Uploads
Your files never leave your device. All processing happens locally in your browser memory — nothing is sent to any server.
100% Free Forever
No subscriptions, no hidden fees, no daily limits. Every tool on Zaeyon is permanently free to use without an account.
Instant & Powerful
Powered by WebAssembly — the same low-level technology used in native apps — so processing is fast even for large files.
Works Offline
Once the page loads, the WebAssembly engine runs entirely on your device. No internet connection needed to process files.
Works Everywhere
No software installation required. Runs directly in your browser on Windows, Mac, Linux, iOS, and Android.