Individual skill

html2pptx

Convert a rendered HTML page (especially A0 conference posters) into a native PowerPoint .pptx with editable text + native shapes — NOT a PNG-in-slide. Walks the live DOM via headless chromium, extracts BLOCK-level text containers (p/h1-h6/li/td) as TextBoxes with inline <strong>/<em> as mixed-style Runs, <img> as Picture with object-fit:contain respected (plus white-tile decoration under transparent-PNG logos), CSS ::before/::after generated content (e.g. 'So what →' callouts) as inherited-style runs, SVG via cairosvg rasterization, decorative <div>/<section> with bg/border/gradient/box-shadow as Rectangle/RoundedRect with matching fill (solid + linear-gradient + outer shadow). All CSS colors (including color-mix/oklab/color()) normalized via canvas. CSS hyphens:auto becomes OOXML soft hyphens via pyphen. CSS line-height absolute Pt for paragraph spacing. Native OOXML bullets with hanging indent. Optional Claude-vision fidelity auditor runs by default (toggle with `--no-vision-audit`); diffs HTML truth vs PPT render → structured 12-category issue report. Supports both direct API (`ANTHROPIC_AUTH_TOKEN`) and base-URL proxy (`ANTHROPIC_BASE_URL`) auth. Targets ~95% visual fidelity with web fonts installed. TRIGGER when user asks: 'HTML to PPT', 'poster to PowerPoint', 'editable PPT from HTML', 'pptx from html', '1:1 PPT clone', or wants an HTML render shipped as an editable .pptx for a non-developer collaborator.

ResearchStudio-Reel/skills/paper2poster/html2pptx/SKILL.md

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Sep 21, 2026
License
MIT

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# html2pptx

Convert a rendered HTML page → native PowerPoint .pptx with **editable shapes** (not a PNG-in-slide).

## When to use

- "Convert this HTML poster to PPT."
- "I need an editable PowerPoint version of my HTML page."
- "1:1 PPT clone of poster.html — fonts/colors/layout."
- "Hand off the poster to a non-developer in PPT."

## When NOT to use

- Need a flat PNG slide → use `paper2poster/demo/presentation/posters.pptx`.