PPTX creation, editing, and analysis

Overview

A user may ask you to create, edit, or analyze the contents of a .pptx file. A .pptx file is essentially a ZIP archive containing XML files and other resources that you can read or edit. You have different tools and workflows available for different tasks.

Prerequisites

Python dependencies are resolved automatically by uv run — scripts declare them in PEP 723 headers. The workflows below also rely on:

• Node.js packages — if node_modules/ is missing, run npm install in this skill directory once. This installs pptxgenjs and playwright, which drives Chromium/Chrome for HTML rendering (on macOS it uses system Chrome; elsewhere run npx playwright install chromium once if no browser is present). It also installs sharp, react, react-dom, and react-icons — html2pptx.js does not use these itself; they are provided for scripts you write during the html2pptx workflow (icon and gradient rasterization, see html2pptx.md)
• LibreOffice (brew install --cask libreoffice) and poppler (brew install poppler) — converting presentations to PDF/images for thumbnails and visual validation (soffice, pdftoppm)

Reading and analyzing content

Text extraction

If you just need to read the text contents of a presentation, you should convert the document to markdown: