Remove metadata from PowerPoint presentations

PPTX information beyond the slides

A PPTX package can carry author fields, custom properties, review comments and speaker notes beyond the slides. Media, embedded objects, relationships and timing structures also need assessment. Inspect the file report as well as the visible slides; the ordinary slideshow view does not establish that those parts contain no private information.

• Presentation core/extended/custom properties
• Comment authors, review comments and speaker notes
• Media/embeddings, relationships, signatures and animation/timing structures

PPTX content changes during processing

The supported path processes assessed presentation properties and privacy-bearing package data, then checks the output independently. Comment authors and comments are removed, and speaker-note text is cleared. Timing, animation or transition content can also be removed. Review those content and behaviour changes before deciding whether the output is suitable for disclosure.

Retained slide and package structures

Supported slide content and package structures must pass reconciliation and independent checks before the result can be relied on. This does not promise that notes, embedded objects or slideshow behaviour remain unchanged. Inspect the slides and test the presentation you intend to use, then compare any changes with the processing report.

• Supported slide content.
• Package structures that pass reconciliation and independent checks.

PPTX scope and review requirements

Speaker notes can contain substantive advice, and clearing them changes content rather than only authorship fields. Processing can also remove animation, timing and transitions. This page's PPTX scope does not extend to PPT or macro-enabled presentations. Keep the original and review the processed slides and behaviour before circulation.

• Speaker-note text is cleared, and review comments and authors are removed.
• Timing, animation and transition content can be removed, so presentation behaviour may change.
• The supported scope is PPTX; PPT and PPTM do not inherit it.
• Every embedded media object or signature is not guaranteed to be preserved or supported.