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Edit Metadata

Document

Inspect and modify hidden PDF document info dictionary properties, author profiles, keywords, and dates securely client-side.

Initializing local sandbox workspace...

Preparing in-browser processing modules. Zero network uploads.

✨ What would you like to do next?

Chain your actions. Forward this completed file directly to another local tool without re-uploading:

PDF Merger

Combine multiple PDFs into one.

PDF Splitter

Extract pages from a PDF document.

Local File Encryptor

AES-GCM password-encrypt files.

100% Client-Side PDF Rewrites

Metadata replacements and injects occur on your device. Your PDF documents are never sent over the network.

Data Leak Protection

Prevent corporate details, creator handles, and editing histories from being exposed in public document distributions.

Free & Fast Execution

Inspect and update PDF configurations instantly. Works on high-volume documents local-side.

Supported Formats:.pdf100% Secure Local Execution

How to Edit PDF Document Metadata

Modify metadata tags inside your PDF in three simple steps.

1

Upload document: Drag and drop your PDF file into the upload box or select a file locally.

2

Adjust tags: Modify Title, Author, Subject, Keywords, Creator, Producer, and Date values.

3

Save and download: Click Save & Download to write the updated attributes and download the modified PDF copy.

Frequently Asked Questions

Clear answers to common questions about metadata editing and privacy.

Is my uploaded file sent to any server for metadata editing?
What is the difference between Creator, Camera, and GPS metadata?
How should I format GPS coordinates?
What does 'Generate Privacy Safe Copy' do?
Does editing metadata degrade file quality?

What is PDF Metadata & Why Should You Edit It?

PDF metadata consists of document dictionary keys describing the file structure, creation context, and searchable details. The metadata includes fields like document Title, Author, Subject, Keywords, Creator (the software that generated the content), Producer (the PDF library/converter used), and Creation/Modification timestamps.

Editing PDF metadata is essential for professional document indexing, aligning searchable metadata with updated document versions, correcting wrong timestamps, or applying correct licensing/producer attributes.

How PDF Metadata Can Leak Sensitive Corporate Information

If left unmodified, PDF document properties can expose sensitive corporate information. Author names reveal individual employee IDs or system usernames. Creator and Producer tags reveal internal software systems and exact versions used, exposing potential software vulnerabilities.

Timestamps show the precise hours work was performed, and keywords can reveal internal codes or project names. By purging or updating these fields before publishing, you protect corporate infrastructure and operational privacy.

Client-Side Safe Editing with pdf-lib

FlexiFile rewrites your PDF documents using `pdf-lib` fully client-side. The file is read directly in the local sandbox memory and its document dictionaries are reconstructed safely.

Because your file never leaves your browser, this method eliminates server-side security vulnerabilities. It complies with security guidelines, keeps documents strictly private, and guarantees immediate processing times.

Best Practices for Sanitizing Documents Before Distribution

To sanitize documents before public distribution, apply the following steps:

  • Audit attributes: Review standard PDF fields before sharing.
  • Normalize fields: Set general Title and Subject details, and replace employee names with general corporate handles.
  • Clear timestamps or align dates: Reset creation dates or normalize them to clean dates.
  • Strip excess keywords: Ensure internal tags and project tags are removed.