Last updated
Viewing PDF Metadata
Open a PDF and the editor displays all embedded metadata:
File: quarterly-report-q1-2024.pdf
Standard Metadata:
Title: (empty)
Author: jsmith
Subject: (empty)
Keywords: (empty)
Creator: Microsoft Word 16.0
Producer: Adobe PDF Library 23.1
Created: 2024-03-15T09:22:11+00:00
Modified: 2024-03-17T14:30:00+00:00
Custom Properties:
Company: Contoso Ltd
Manager: Jane Doe
Template: Normal.dotm
RevisionNum: 12
AppVersion: 16.0000
The empty Title and Subject fields mean this PDF won't be properly identified in document management systems or search results. The Author field reveals an internal username.
Editing Metadata for Professional Distribution
Updating metadata before sharing externally:
Before:
Title: (empty)
Author: jsmith
Subject: (empty)
Keywords: (empty)
After editing:
Title: Q1 2024 Financial Report — Contoso Ltd
Author: Finance Department
Subject: Quarterly financial results for Q1 2024
Keywords: quarterly report, financial results, Q1 2024, revenue, earnings
Benefits:
✓ Appears correctly in document management systems
✓ Search engines index the keywords
✓ Screen readers announce the correct title
✓ No internal username exposed
Removing Sensitive Metadata Before Sharing
Stripping information that reveals internal details:
Metadata to remove before external distribution:
Creator: Microsoft Word 16.0 → Remove (reveals software)
Company: Contoso Ltd → Remove (may be confidential)
Manager: Jane Doe → Remove (reveals employee name)
Template: Normal.dotm → Remove (internal file path)
RevisionNum: 12 → Remove (reveals edit history)
AppVersion: 16.0000 → Remove (reveals software version)
After removal:
Title: Q1 2024 Financial Report
Author: Finance Department
Subject: Quarterly financial results
Keywords: quarterly report, Q1 2024
Created: 2024-03-15
Modified: 2024-03-17
Correcting Incorrect Dates
Fixing metadata dates that don't reflect the actual document date:
Problem: PDF was created from a template, inheriting old dates
Created: 2019-06-01 (template creation date — wrong)
Modified: 2024-03-17 (correct)
Fix:
Created: 2024-03-15 (actual document creation date)
Modified: 2024-03-17 (last edit date — correct)
PDF date format (internal):
D:20240315092211+00'00'
(D: prefix, YYYYMMDDHHMMSS, timezone offset)
Keywords for Document Discoverability
Best practices for the keywords field:
Poor keywords (too generic):
Keywords: report, document, 2024
Good keywords (specific and useful):
Keywords: Q1 2024, financial report, revenue, EBITDA,
quarterly earnings, Contoso Ltd, fiscal year 2024,
investor relations, annual report
For technical documentation:
Keywords: API documentation, REST API, authentication,
OAuth 2.0, endpoints, v2.1, developer guide
For legal documents:
Keywords: contract, service agreement, SaaS,
terms of service, liability, indemnification
XMP Metadata Synchronization
Modern PDFs contain both PDF dictionary metadata and XMP metadata:
PDF Dictionary (traditional):
/Title (Q1 2024 Financial Report)
/Author (Finance Department)
/Subject (Quarterly results)
XMP Metadata (XML-based):
<dc:title>Q1 2024 Financial Report</dc:title>
<dc:creator>Finance Department</dc:creator>
<dc:description>Quarterly results</dc:description>
<xmp:CreateDate>2024-03-15T09:22:11Z</xmp:CreateDate>
The editor updates both simultaneously to keep them in sync.
Inconsistent metadata between the two formats can cause issues
in some document management systems.
Accessibility — Title Metadata
The Title field is critical for screen reader users:
Without title metadata:
Screen reader announces: "quarterly-report-q1-2024.pdf"
(the filename — not helpful)
With title metadata:
Screen reader announces: "Q1 2024 Financial Report — Contoso Ltd"
(the actual document title — much more useful)
PDF/UA (Universal Accessibility) standard requires:
✓ Title metadata must be set
✓ Language must be specified
✓ Document structure must be tagged
Bulk Metadata Update
Updating metadata across multiple PDFs in a batch:
Batch update — 12 monthly reports:
Common fields to set for all:
Author: Finance Department
Creator: (remove)
Company: (remove)
Per-file fields (from CSV):
File Title Keywords
report-jan-2024.pdf January 2024 Report january, Q1 2024
report-feb-2024.pdf February 2024 Report february, Q1 2024
report-mar-2024.pdf March 2024 Report march, Q1 2024
...
Result: All 12 files updated with correct metadata in one operation.