PDF metadata is descriptive information embedded inside a PDF file that is not part of the visible page content. It includes properties like the document title, author, creation date, keywords, and application information. Some PDFs also contain richer metadata in XML-based XMP format, and interactive forms may expose field names, types, and default values.
Metadata serves multiple purposes: document management systems use it for indexing and search, operating systems display it in file properties, search engines use it for ranking web-hosted PDFs, and print production workflows rely on XMP for color profiles and rights management.
Example: A PDF might display as "Annual_Report.pdf" in your file manager, but its internal metadata could reveal the Title as "FY2024 Annual Financial Report," the Author as "Acme Corporation Finance Department," and XMP data showing it was created in Adobe InDesign with a CMYK color profile.
This tool inspects three distinct metadata layers inside a PDF:
The Document Information Dictionary is the original PDF metadata format defined in the PDF specification. It contains a flat set of key-value string properties:
| Field | Description | Example |
|---|---|---|
| Title | Document title | Q3 2025 Financial Report |
| Author | Document creator | Jane Smith |
| Subject | Topic or purpose | Quarterly analysis |
| Keywords | Comma-separated search terms | finance, Q3, 2025 |
| Creator | Authoring application | Microsoft Word 2021 |
| Producer | PDF generation tool | Adobe Acrobat PDF Library |
| CreationDate | Original creation timestamp | D:20250115093000+05'30' |
| ModDate | Last modification timestamp | D:20250602144500+05'30' |
Additional custom keys may also be present (e.g., custom fields added by other tools).
XMP is an ISO standard (ISO 16684) for embedding structured, XML-based metadata in files. It was developed by Adobe and is widely used in creative and publishing workflows. XMP can contain:
Dublin Core — Title, Creator, Description, Date, Format, Language
IPTC — Copyright, credit line, location, category (used in photojournalism)
Color profiles — CMYK/RGB information for print production
Rights management — Usage terms, copyright notices
Custom schemas — Organization-specific metadata structures
XMP data is displayed with hierarchical indentation to show the XML tree structure.
If a PDF contains an interactive form (AcroForm), this section reveals:
Field names — Internal identifiers used to reference each field
Field types — Text input, checkbox, radio button, dropdown, signature field
Default values — Pre-filled values in the form fields
Field flags — Read-only, required, multiline properties
This is useful for developers building PDF form automation, QA teams verifying form structure, or users checking what data a PDF form collects before filling it out.
| Aspect | Info Dictionary | XMP Metadata | Form Fields |
|---|---|---|---|
| Format | Flat key-value strings | Hierarchical XML | Structured field objects |
| Standard fields | Title, Author, Subject, Keywords, Creator, Producer, Dates | Dublin Core, IPTC, color profiles, rights | Field name, type, value, flags |
| Scope | Basic document info | Rich, extensible metadata | Interactive form data |
| Always present | Usually yes | Often yes (Adobe tools add it) | Only in PDFs with forms |
| Used by | File explorers, search engines | Creative tools, DAM systems, print workflows | Form automation, QA |
| Feature | Description |
|---|---|
| Info Dictionary inspection | View all standard and custom metadata fields from the Document Information Dictionary |
| XMP metadata inspection | Parse and display XMP XML data with hierarchical indentation |
| Interactive form field inspection | List all form field names, types, and values in AcroForm PDFs |
| Empty state feedback | Clear messages when a metadata section has no data (e.g., "- No XMP metadata found -") |
| Client-side processing | All inspection happens in your browser using pdf-lib and pdf.js. Files are never uploaded to any server |
| No registration | Use immediately, no account or email needed |
| Free | No cost, no watermarks, no file limits |
Drag and drop a PDF file onto the upload area, or click to browse your device. The tool accepts any .pdf file.
Click the "View Metadata" button. The tool reads the PDF's metadata in your browser and displays the results in three sections: Info Dictionary, Interactive Form Fields, and XMP Metadata.
Each section displays its findings as key-value pairs:
Info Dictionary — Shows all standard metadata fields (Title, Author, Subject, etc.) and any custom fields
Interactive Form Fields — Lists form field names and their current values (only appears if the PDF contains a form)
XMP Metadata — Displays the parsed XML structure with indented hierarchy showing namespaces and nested properties
If any section contains no data, a clear message indicates the absence.
Privacy auditing: Before sharing a PDF externally, inspect its metadata to check for personal information (author name, email, creation dates, software used) that you may want to remove.
Digital forensics: Examine PDF metadata to verify document provenance, creation timeline, authorship claims, or software fingerprints in legal or investigative contexts.
Print production verification: Check XMP color profiles, resolution metadata, and output intents to confirm a PDF meets print production requirements before sending to a print shop.
Form field analysis: Developers building PDF form automation can inspect field names and types to understand the form structure before writing automation scripts.
Document management: Catalog and verify metadata consistency across a document library (standardized titles, authors, keywords) for searchability in DAM systems.
SEO auditing: Check Title and Keywords metadata on web-hosted PDFs to ensure search engines have accurate information for indexing and ranking.
No data is transmitted to any server. No files are stored or logged. The PDF content remains on your device.
Upload your PDF and click "View Metadata." The tool displays three sections: Info Dictionary (standard properties), Interactive Form Fields (if present), and XMP Metadata (XML properties).
The Info Dictionary is the original PDF metadata format with standard fields like Title and Author. XMP (Extensible Metadata Platform) is an XML-based ISO standard that can contain richer, structured metadata including Dublin Core, IPTC, color profiles, and custom schemas. Many PDFs contain both.
These are fillable form elements in a PDF (text inputs, checkboxes, dropdowns, signature fields). The tool lists their internal names, types, and current values. Only PDFs with forms will show data in this section.
Yes. Completely free with no registration, no watermarks, and no file limits.
All metadata inspection happens locally in your web browser. Your PDF is never uploaded to any server. No data leaves your device.
XMP stands for Extensible Metadata Platform. It is an ISO standard (ISO 16684) originally developed by Adobe for embedding structured metadata in files, including PDFs, images, and videos.
If the author included their name in the metadata, it will appear in the Author field of the Info Dictionary and possibly in the XMP Creator field. However, metadata can be empty or modified, so it is not a guaranteed identifier.
Not all PDFs include XMP data. PDFs created with basic tools may only have Info Dictionary fields. XMP metadata is more common in PDFs created by Adobe products, creative applications, and document management systems.
Yes. The Interactive Form Fields section lists all field names and types. This is useful for understanding what data a form collects, or for developers writing form automation scripts.
Operating systems may display a mix of Info Dictionary data and filesystem properties (file size, filesystem dates). The tool shows only the metadata embedded inside the PDF itself.
The original file is never modified. The tool reads metadata for display only. Your file remains unchanged.
Yes. The tool works in any modern web browser on desktop, tablet, or mobile devices.