Removing Metadata from Word Documents & PDFs
What Metadata Is and Why It Matters
Common Metadata Found in Files Microsoft Word Documents (.docx)
PDF Files:
How to Remove Metadata in Microsoft Word
Option 1: Use the Document Inspector (Windows desktop version)
- Open the document in Word.
- Click File → Info.
- In the right-hand panel, click Check for Issues → Inspect Document.
- In the Document Inspector window, check all the boxes (especially Comments, Revisions, Versions, and Annotations).
- Click Inspect.
- Review the results, then click Remove All next to each category you want to delete.
- Click Close, then Save As to create a clean version for sharing.
Option 2: For Word on Mac
- Open your document.
- From the Tools menu, select Protect Document.
- Check the box labeled Remove personal information from this file on save.
- Save the document. This strips identifying metadata automatically.
Option 3: Manual Cleanup (All Versions)
- Accept or reject all tracked changes.
- Delete all comments (Review → Delete → Delete All Comments in Document).
- Ensure “Author” and “Company” fields in File → Info → Properties → Advanced Properties → Summary are blank.
- Save the cleaned file as a new copy.
How to Remove Metadata from PDFs Using Adobe Acrobat
- Open the PDF.
- Go to File → Properties → Description and clear all fields.
- Then go to Tools → Redact → Remove Hidden Information.
- Check all boxes (comments, metadata, file attachments, etc.) and click Remove.
- Save the sanitized version under a new file name.
Removing Metadata from Google Docs (Before Downloading as Word Files)
When downloaded as Word (.docx) files, Google Docs can retain:
- Document owner name and email address
- Revision and comment history
- “Last edited by” details
- Internal sharing permissions
Best Practices Before Downloading Option 1: Create a Clean Copy
- Click File → Make a copy in Google Docs.
- In the new copy: o Delete all comments and suggestions (Tools → Review suggested edits → Accept all). o Remove all collaborators (Share → Remove access). o Ensure your name/email are removed from the document title and content.
- Download as Microsoft Word (.docx).
- Open the file in Word and run the Document Inspector (see Section 3 above).
Option 2: Export as PDF
- Click File → Download → PDF Document (.pdf).
- Most collaborative metadata will be stripped automatically.
- Use Adobe Acrobat’s “Remove Hidden Information” or BleachBit/ExifTool for a final clean.
For Highly Sensitive Documents
- Avoid personal names or internal links in content or comments.
- Use a neutral, non-personal account (e.g., admin@organization.org) as the file owner.
- Rename files generically before sharing (e.g., Policy_Guidelines_CLEAN.docx).
- After download, recheck metadata in Word before distribution.
Automation for Google Workspace Admins
- Disable “Show editors” in version history for shared links.
- Set default link-sharing to “Restricted” or “Anyone with the link (Viewer).”
- Use Google Workspace DLP rules to flag documents with personal data before export.
Organizational Best Practices
- Always inspect documents before sharing. Make this part of your publication or communication workflow.
- Never rely on “print to PDF” alone. Some metadata can survive that process.
- Store original versions securely on encrypted storage like Tresorit, not in email threads or shared folders.
- Train all staff on why metadata matters as part of regular cybersecurity and privacy awareness.
When in Doubt
If a file contains sensitive content (e.g., internal strategy, donor data, or legal documents), sanitize it twice — once in its native format and again after conversion to PDF. For highly sensitive reports, share only through encrypted channels like Tresorit or Signal.