Bulk PDF Metadata Editor
Update the title, author, subject, keywords, and creator application metadata across multiple PDFs at once. Set a global value for the whole batch, then override individual files as needed. Download each updated PDF separately or as a ZIP archive — fully client-side, no uploads, no signup required.
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Why Use Our Bulk PDF Metadata Editor?
Global Fields — One Edit for All
Set title, author, subject, keywords, and creator application once in the global panel and apply those values to every PDF in the batch — no need to edit each file individually.
Per-File Overrides
Toggle any file to "Override" mode and set its own independent metadata values — perfect when most files share the same author but a few need different titles or subjects.
Existing Metadata Pre-Loaded
The bulk PDF metadata editor reads each file's current metadata as soon as it is added, pre-populating fields so you can see what is already there and only change what you need.
100% Private — No Server Upload
Every file is processed entirely inside your browser using pdf-lib. Your documents never leave your device and are never sent to any external server or third-party service.
When to Use the Bulk PDF Metadata Editor
Corporate Document Standardisation
When a company rebrands or a team name changes, use the bulk PDF metadata editor to update the author and creator fields across hundreds of policy documents, reports, and contracts in one batch.
Publishing & Ebook Production
Publishers preparing multiple chapter PDFs or companion documents can bulk-set the author, publisher, and subject fields so every file in a series carries consistent, search-indexable metadata.
Academic & Research Paper Batches
Researchers submitting multiple PDFs to a repository can bulk-apply institutional author names, subject classifications, and keywords to ensure all files meet submission metadata requirements.
Document Management System Imports
Before bulk-uploading PDFs to SharePoint, Confluence, or an ECM system, enrich the metadata so documents appear correctly in search results and are auto-classified by subject or department.
Archive Digitisation Cleanup
Scanned legacy documents often have no metadata at all. Use the bulk PDF metadata editor to add author, date context via the subject field, and keywords before long-term archival storage.
Legal & Compliance Batch Labeling
Law firms and compliance teams can tag batches of case documents with matter numbers, client names in the subject field, and firm name in the author field — preparing them for eDiscovery or filing.
Understanding PDF Metadata
What is PDF Metadata?
PDF metadata is structured information stored inside the PDF file itself that describes the document without being part of its visible content. The PDF specification (ISO 32000) defines a Document Information Dictionary with standard fields: Title, Author, Subject, Keywords, Creator (the authoring application), and Producer (the PDF conversion software). These fields are indexed by desktop search tools (Spotlight, Windows Search), document management systems, and library catalogues — making them critical for discoverability, compliance, and professional document presentation.
How Our Bulk PDF Metadata Editor Works
- Upload PDFs:Drop one or more PDF files onto the upload zone. The bulk PDF metadata editor immediately reads each file's existing metadata and pre-populates the per-file fields so you can see what is already stored.
- Set Metadata:Fill in the global panel to apply the same values to every file. Expand any file row and switch it to “Override” mode to give it independent values. Global fields left blank inherit from each file's existing metadata; per-file overrides take full precedence.
- Apply & Download:Click “Apply to N PDFs” to process the whole queue sequentially. Download each updated PDF individually or click Download All ZIP to get every file in one archive.
What Gets Updated in Each PDF
- Title: The document title shown in browser tab bars, PDF viewers, and search results — one of the most important fields for discoverability.
- Author: The person or organisation that created the content — widely indexed by search engines and document management systems.
- Subject: A brief description or classification of the document — used for category tagging in enterprise content management platforms.
- Keywords: Comma-separated search terms — help desktop search tools and repository systems surface the document in relevant queries.
Privacy, Security & Availability
The entire bulk PDF metadata editing process runs 100% client-side in your browser using pdf-lib. Your PDF files never leave your device and are never transmitted to any server. The modification date is automatically updated to the time of processing. This tool is completely free, requires no signup, and has no file size or count limits beyond your device's available memory.
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Frequently Asked Questions About Bulk PDF Metadata Editor
A bulk PDF metadata editor lets you update the title, author, subject, keywords, and creator fields in multiple PDF files at once. Our free bulk PDF metadata editor runs entirely in your browser, so your files never leave your device.
The bulk PDF metadata editor supports the five most important standard fields: Title, Author, Subject, Keywords, and Creator Application. The modification date is automatically updated to the current date and time when each file is processed.
Global values apply to every file in the queue that has "Global" mode active. Per-file overrides let you set completely independent metadata for a specific file — useful when most files share the same author but a few need different titles or subjects. Any field left blank in the global panel falls back to the file's existing metadata.
No. Metadata is stored separately from the page content. The bulk PDF metadata editor only updates the Document Information Dictionary — all text, images, fonts, vector graphics, and formatting remain completely unchanged.
Completely. All processing happens inside your local browser using pdf-lib. Your PDF files are never uploaded to any server, never stored in the cloud, and never shared with any third party. Your documents stay on your device throughout.
Yes. For files using global mode, any global field left blank falls back to the file's existing metadata. For files in override mode, fields you leave blank are cleared. You can see the effective values for each file by expanding its row in the queue.
Once processing is complete, click the "Download All ZIP" button in the action bar. This packages all successfully processed PDFs into a single ZIP archive with each file named after its original plus "-metadata" to distinguish it from the source.
Yes. Failed files show a "Failed" badge and display the error message. Click "Apply to N PDFs" again to retry — only pending and failed files are reprocessed. Successfully completed files are skipped.
Yes, completely free. No signup, no subscription, no watermarks on outputs, and no file size limits. The bulk PDF metadata editor runs entirely in your browser — no server costs, no hidden tiers.