View hidden PDF metadata including author, creation date, and more. Free browser-based PDF metadata viewer. No uploads. Free, private, in-browser.
Every PDF carries invisible information beyond what appears on the pages. Document properties include details about creation, authorship, software used, and modification history. This metadata viewer extracts and displays these hidden fields, giving you insight into the document's origins and attributes.
Metadata fields serve different purposes and originate from various sources:
Title: The document's formal title, which may differ from the filename. Set either automatically by creation software or manually by the author.
Author: The person or organization credited with creating the document. Often pulled from software registration or user account settings.
Subject: A brief description of the document's topic or purpose. Rarely populated automatically, usually set intentionally.
Keywords: Tags or descriptors intended to aid searchability. Useful for document management systems that index by metadata.
Creator: The application that generated the original content—Microsoft Word, Adobe InDesign, Google Docs, or other software.
Producer: The software that rendered or converted the final PDF—Adobe Acrobat, browser print function, or PDF libraries.
Dates: Creation date records when the PDF was first generated. Modification date updates with each save.
Document verification: Legal and academic contexts often require confirmation of document authenticity. Metadata can corroborate claims about when and by whom a document was created, though it can be modified and shouldn't be sole proof.
Privacy auditing: Before sharing documents publicly, reviewing metadata prevents inadvertent disclosure of personal information. Author fields might contain real names, usernames, or organization identifiers you'd prefer not to share.
Troubleshooting compatibility: When PDFs display incorrectly or cause application crashes, knowing the creation software helps identify compatibility issues. A PDF from one application may require specific handling in another.
Content management: Organizations indexing large document repositories use metadata for categorization. Understanding what fields are populated helps inform filing and retrieval strategies.
Forensic analysis: In investigative contexts, metadata provides circumstantial evidence about document history. Discrepancies between claimed creation dates and metadata dates can indicate modifications.
The tool loads your PDF using the pdf-lib JavaScript library. This library parses the document structure and accesses the information dictionary where metadata resides. Standard PDF properties map to accessor methods that retrieve title, author, subject, keywords, creator, producer, and date values.
Processing occurs entirely within your browser. The file loads into memory as an ArrayBuffer, parses through JavaScript, and displays extracted values. No data transmits to external servers at any point.
Not all PDFs contain complete metadata. Several factors affect what's available:
Creation software: Some applications populate metadata thoroughly; others ignore it entirely. Web-based PDF generators often produce minimal metadata.
Document type: Scanned documents converted to PDF typically lack meaningful metadata beyond basic file information.
Intentional omission: Authors may deliberately clear metadata for privacy before distribution.
File age: Older PDFs from early software versions may have limited metadata structures.
Documents you're analyzing may contain confidential content. Files are processed locally in the browser whenever possible and are not stored on our servers. This architecture makes the tool suitable for sensitive documents where confidentiality is essential.
Legal professionals verifying document origins. Researchers validating source materials. Privacy-conscious users auditing files before publication. IT administrators diagnosing PDF compatibility issues. Publishers checking metadata completeness before release. Archivists cataloging document collections.
For additional PDF operations, our PDF Compress tool reduces file sizes, Merge PDF combines multiple documents, and Remove PDF Password handles permission restrictions.
Common metadata includes title, author, subject, keywords, creator application, producer software, creation date, modification date, and page count. Not all PDFs contain all fields.
Metadata helps verify document authorship, check creation dates for legal purposes, identify creation software for troubleshooting, and audit files for privacy before sharing publicly.
This tool only reads and displays metadata. Editing requires a dedicated PDF editor that can modify document properties.
No. The viewer runs entirely in your browser. Your document stays on your device and nothing is sent to any server.
Some PDFs have minimal or no metadata. This is common with scanned documents, older files, or PDFs from applications that don't populate metadata fields.
Yes. Author names, computer usernames, software registrations, and organization names can appear in metadata. This is why checking metadata before public sharing is advisable.
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