How do I remove hidden metadata from a PowerPoint file?

Use DeckMedic's Metadata Wiper. It physically edits the docProps/core.xml and docProps/app.xml files inside the PPTX ZIP to blank the author name, last modified by, company, subject, keywords, total editing time, and revision number. The file looks identical when opened in PowerPoint — only the metadata is gone.

Can people see hidden slides I've hidden in PowerPoint?

Yes. Anyone who opens your PPTX can right-click in the Slide Panel and select Show Slide to instantly reveal all hidden slides. The Hidden Slide Killer permanently removes the slide XML, media, and relationship entries so nothing remains to reveal.

Is the Stealth and Scrub Suite free to use?

All four tools are free with no account required. Files are processed locally in your browser using Web Workers. No data leaves your device.

Stealth and Scrub Suite — Free PPTX Privacy and Compliance Toolkit

Stealth & Scrub Suite
PPTX Privacy, Security & Compliance

Before you share any PowerPoint deck, four invisible risks remain in the file: author metadata that reveals who made it, hidden slides anyone can unhide, PII buried in speaker notes, and placeholder text that signals an unfinished draft. This suite eliminates all four — in your browser, with zero upload.

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Zero upload

Files never leave your device

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In-browser

No install, no account

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GDPR-safe

No data processor required

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Free

4 tools, no paywalls

The Problem

✗ Metadata in docProps/custom.xml exposes the real author and AI tool session IDs — any recipient can check File → Info → Properties in seconds

✗ Hidden slides contain internal commentary — any PowerPoint user can right-click → Unhide and read everything you left behind

✗ Speaker notes accumulate emails, phone numbers, and client names invisibly — every shared deck sends that data to every recipient

✗ Lorem ipsum, TBD, and [INSERT] placeholders reach clients — immediately signalling an unreviewed, incomplete deck

The Fix

✓ Metadata Wiper strips all author, company, and AI session identifiers from custom.xml — clean file, zero attribution

✓ Hidden Slide Killer permanently deletes hidden slides and their content — not just hides them again

✓ PII Scrubber scans every notes field for emails, phone numbers, and credit card patterns and removes them

✓ Lorem Hunter finds and flags every placeholder text instance before the deck leaves your machine

4 independent tools — run each in any order

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Tool 1

Metadata Wiper

Removes "Author: Copilot", real names, company info, AI session IDs, and custom properties that betray who actually made the deck.

Author Wipe Edit Time Randomizer Custom Props Delete

Launch Tool

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Tool 2

Hidden Slide Killer

Slides hidden with show="0" are still fully present in the file. Anyone can right-click and Unhide. This tool physically deletes them from the ZIP — permanently.

Detects all hidden slides Physical deletion Notes also removed

Launch Tool

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Tool 3

PII & Comment Scrubber

Regex-scans every speaker notes slide for emails, phone numbers, and credit card numbers. Replaces them with [REDACTED]. Also removes internal comment files.

Email Redaction Phone Redaction Comment Removal

Launch Tool

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Tool 4

Lorem Ipsum Hunter

Scans every slide for forgotten placeholder text — Lorem ipsum, TBD, TK, [INSERT …], DRAFT markers. Shows you exactly which slide and which text so you can fix it.

Read-only scan Actual text shown Export QC report

Launch Tool

The Problem

The Fix

4 independent tools — run each in any order

Metadata Wiper

Hidden Slide Killer

PII & Comment Scrubber

Lorem Ipsum Hunter

Other DeckMedic suites