Advanced Exporter for PowerPoint
AI-assisted project. This codebase was created with Claude (Anthropic), directed and
reviewed by a human author. Every format has been exported from a real deck inside
PowerPoint for Mac and checked with independent tools; PowerPoint for Windows and on the web
haven't been tried yet. See Status.
PowerPoint will save a deck as a PDF, a picture per slide or a video, and it asks you
remarkably little about any of them. This add-in does all of those with the options left in
(size, resolution, quality, slide range, letterboxing) and then carries on into the formats
PowerPoint never got round to: a self-contained HTML5 presentation, reveal.js, LaTeX Beamer,
Markdown and Marp, handouts and notes pages, a deck flattened to pictures for a playback machine
that hasn't got your fonts, and a few more.
It's an Office task-pane add-in, so the same thing runs in PowerPoint for Mac, Windows and the
web. PowerPoint draws every slide itself, at exactly the size each format asks for; the add-in
reads the rest (notes, hidden slides, transitions, links, video) out of the deck. Everything
happens in the pane. Nothing is uploaded.
The project page has the download
and the user guide. The add-in is hosted at https://pptx-exporter-addin.stoatworks-labs.com,
which has the install steps.
| Group | Formats |
|---|
| Images | PNG, JPEG, WebP, AVIF, TIFF (one per slide or multi-page; LZW, Deflate or PackBits), BMP, TGA, GIF, SVG with clickable links, contact sheet |
| Documents | PowerPoint's vector PDF (trimmed to a range or split per slide), picture PDF (keeps hidden slides and links), handouts 1/2/3/4/6/9 to a page, notes pages, Word notes document, OpenDocument |
| Web | HTML5 presentation with transitions, presenter view, links and the deck's own video; reveal.js; a scrolling page |
| Video | MP4 (H.264, HEVC, AV1) and WebM (VP9, VP8, AV1) with the deck's timings and captions from the notes; animated GIF; the deck's own video and sound files in a .zip (Video bundle) |
| Text | LaTeX Beamer (the slides as drawn, or rebuilt as editable LaTeX) or a LaTeX article with notes; Markdown, Marp, Pandoc/Quarto; an outline PowerPoint reads back in (RTF), OPML or text; speaker notes; CSV; JSON |
| PowerPoint | A copy as PPTX, PPSX or POTX, trimmed and cleaned (notes, comments, hidden slides, names); one file per slide; a flattened picture deck |
Every option for every format is in the user guide.
Download
v0.2.0 — prebuilt for macOS and Windows. Pick your platform:
Also in this release:
All builds, checksums and release notes: github.com/stoatworks-labs/pptx-exporter-addin/releases.
The Windows builds are unsigned, so SmartScreen warns once.
Status
- Mac: checked. On PowerPoint for Mac 16.112.3 (macOS 26.4.1, 2026-10-20), a nine-slide
test deck with a hidden slide, sections, a table, a picture, links, transitions, notes in four
scripts and an embedded video went through every format at once, inside PowerPoint, in 15.7
seconds. Every file was checked with something other than the add-in (see
Testing), and PowerPoint and Word opened the generated Office files without a
repair prompt.
- Video bundle and media notes: checked on Mac, released in v0.2.0. Exported inside PowerPoint for
Mac 16.112.3 from a 460 MB deck of video (with PNG and HTML5): the files came out of
PowerPoint's own copy of the deck byte for byte, stored, and ffprobe reads them. That size is
near the pane's limit: it reached about 7 GB, and the first attempt, before reading the deck
into one buffer and letting the old copy go first, wedged WKWebView at 2.7 GB.
- Windows: the installer works; the formats aren't checked there. The Setup.exe was run on
a Windows PC with desktop PowerPoint on 2026-11-08 and PowerPoint picked the add-in up. The
formats haven't been run through one by one there as they were on the Mac.
- The web: untested. It's in the manifest's host list, but nothing here has run it.
- Hosted at https://pptx-exporter-addin.stoatworks-labs.com since 2026-10-20. The
production build was checked under its own CSP in a Chromium browser, then loaded in
PowerPoint for Mac from the production manifest, where it opened and exported. The
every-format run above used the dev build from
localhost.
Install
Run the installer for your machine. Each one adds Advanced Exporter to PowerPoint for your user
account only, with no admin password, and needs PowerPoint closed.
This is the beginning of the README. Read the rest at the original. Read the full README ↗
