Remove PowerPoint metadata

Presentations are sent to clients, investors, conferences and journalists, forwarded onwards, and posted as downloads. They are also the Office file most often built from an internal template, which means the properties name the organisation, the department and frequently the individual.

The editing time field is worth a thought before sending a pitch deck: it reports, cumulatively, how many minutes the file has been open for editing since it was created.

Speaker notes. They are slide content, they survive, and they are visible to anyone who opens the file rather than only presents it — which is the most common accidental disclosure in a shared deck.

The same applies to slides hidden from the presentation, to objects moved off the edge of the canvas, and to images cropped in PowerPoint, which keeps the whole original picture and merely displays part of it. Cropping is not deletion, and a metadata cleaner cannot tell the difference.

Every deck built from a corporate template records that template’s name, and those names are rarely neutral: they carry the organisation, often a department, sometimes a campaign or a client. A deck sent to an investor that announces it was made from `ACME_Partner_Pitch_v4.potx` has said something nobody intended it to say.

That field is cleared here along with the author and the company. It is worth knowing which one it was, because it is the one people are most surprised by — the author field they think to check, the template they do not.

A spreadsheet pasted into a slide as a linked or embedded object is not a picture of a spreadsheet — the workbook is inside the presentation, with all of its own sheets, its own formulas and its own properties. Double-clicking it in PowerPoint opens the real thing.

This tool clears the deck’s properties, not the properties of files embedded within it. If a slide contains an embedded workbook or document, treat it as a separate file that also needs checking, or paste it as an image instead — which is the version that actually contains only what is visible.

Exporting to PDF is often the better answer for a deck leaving the building, and for reasons that have nothing to do with metadata: it fixes the fonts, it stops the recipient editing it, and it cannot open in presenter mode and reveal the notes.

It is not automatically cleaner, though. A PDF exported from PowerPoint carries its own document properties, and those frequently inherit the author from the source. If you take that route, clean the PDF afterwards on the PDF page rather than assuming the export dropped anything.

The notes pane is part of the slide content, not part of the document properties, so nothing on this page removes it. A deck sent with the notes intact carries whatever was written to be said out loud — including the reminders nobody intended an external reader to see.

They are also easy to miss, because the normal view puts them below the fold and the presenter view is the only place they look important. Before a deck leaves the building it is worth switching to the notes view once and reading down the pack, which is faster than it sounds and catches what no automatic step can judge.

Hiding a slide keeps it in the file and skips it during the show. It is the standard way to park a backup slide, an older version of a chart or the internal numbers behind a public figure, and it is invisible to anyone who only ever presses play.

Anyone who opens the deck rather than presenting it sees the hidden slides greyed out in the sidebar, one click from being read. If a slide is genuinely not for the recipient, deleting it is the only version of that decision the file can enforce.