A converter that turns a rendered HTML page into an editable PowerPoint presentation, keeping text as text boxes and graphics as shapes or pictures where possible.

Use it for conference posters and other HTML layouts that need to be handed off or edited in PowerPoint.

It provides an editable slide version of an HTML design instead of placing a single uneditable screenshot on a slide.

html2pptx — Skill by microsoft

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add skills/microsoft/researchstudio/html2pptx

Any agent

npx skills add microsoft/ResearchStudio --skill html2pptx

Clone the repo

git clone --depth 1 https://github.com/microsoft/ResearchStudio

Made for: Claude Code, Codex.

Per session 345 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 6,380 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 2 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5	$0.00345	$0.06380
Opus 5	$0.00172	$0.03190
Sonnet 5	$0.00069	$0.01276
Haiku 4.5	$0.00034	$0.00638

Measured yesterday against content hash d1b60fc030e5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

html2pptx scanned grade B with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

The scan reads SKILL.md. This mod also ships 11 executable files (__init__.py, scripts/__init__.py, scripts/auto_correct_loop.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo apt install libreoffice-impress

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -sL "https://github.com/rsms/inter/releases/download/v4.0/Inter-4.0.zip" -o Inter.zip

ResearchStudio-Reel/skills/paper2poster/html2pptx/SKILL.md · 349 lines

How it starts

The opening of the file, as written. The whole thing — 349 lines — stays where its author put it; the contents beside it link to each section on GitHub.

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.
HTML uses heavy JS animations / video → those don't translate to PPT shapes.
Math-heavy KaTeX content → math gets rasterized fallback (loses equation editability).

Setup (one-time)

1. Python deps

pip install python-pptx playwright pdf2image lxml Pillow pyphen cairosvg
playwright install chromium     # ~110MB headless browser

2. soffice (for verification)

# Linux:
sudo apt install libreoffice-impress
# Mac:
brew install --cask libreoffice

3. Web fonts — CRITICAL for fidelity (Read GOTCHAS.md)

Default = Arial → you can skip this whole section. Since the paper2poster Arial default, posters render in Arial (or another PPT-safe family: Calibri, Aptos, Cambria, Times New Roman, Verdana, Georgia, Trebuchet MS). Those are pre-installed on every Mac + Windows PowerPoint, so you do not need the font installs below and the .pptx is portable without embedding. The Inter / Source Serif 4 / JetBrains Mono setup below applies only when the poster was rendered with the optional Inter webfont override.

Without Inter / Source Serif 4 / JetBrains Mono installed, soffice falls back to DejaVu Sans (Linux) or Helvetica (Mac) — character widths change, text wraps differently, all positions cascade-shift.

Linux:

# Download static-weight TTFs (variable fonts register under wrong family name)
mkdir -p /tmp/fonts-dl && cd /tmp/fonts-dl
curl -sL "https://github.com/rsms/inter/releases/download/v4.0/Inter-4.0.zip" -o Inter.zip
curl -sL "https://github.com/adobe-fonts/source-serif/releases/download/4.005R/source-serif-4.005_Desktop.zip" -o SourceSerif4.zip
curl -sL "https://github.com/JetBrains/JetBrainsMono/releases/download/v2.304/JetBrainsMono-2.304.zip" -o JetBrainsMono.zip
unzip -qo Inter.zip -d Inter/
unzip -qo SourceSerif4.zip -d SourceSerif4/
unzip -qo JetBrainsMono.zip -d JetBrainsMono/

mkdir -p ~/.local/share/fonts
cp Inter/extras/ttf/Inter-{Regular,Medium,SemiBold,Bold,Italic,SemiBoldItalic,BoldItalic}.ttf ~/.local/share/fonts/
cp SourceSerif4/source-serif-4.005_Desktop/TTF/SourceSerif4-{Regular,Semibold,Bold,It,SemiboldIt,BoldIt}.ttf ~/.local/share/fonts/
cp JetBrainsMono/fonts/ttf/JetBrainsMono-{Regular,Medium,Bold,Italic,BoldItalic}.ttf ~/.local/share/fonts/
fc-cache -f ~/.local/share/fonts/

# Verify: fc-match MUST return the font itself, not a fallback
fc-match "Inter" "Source Serif 4" "JetBrains Mono"

Read the full file on GitHub · 349 lines

Files

What ships with it

16 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

yesterday First seen · 349 lines · 345 tokens per session scan B d1b60fc030e5

Subscribe to this mod's changes

html2pptx is a skill published in the GitHub repository microsoft/ResearchStudio (2,579 stars, last pushed 2d ago), licensed MIT. It adds 345 tokens to every session and 6,380 once invoked, about $0.0017 per session on Opus 5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Documents Research Writing and docs blog-generation idea-generation poster-generation presentation researchstudio-idea researchstudio-reel

ppt-master

AI-driven presentation workflow for generating editable PPTX decks and slides, reconstructing page visuals, creating reusable Brand/Style/Layout/Deck workspaces, filling native PPTX templates, and enhancing finished PPTX files. Use when the user asks to create, generate, reconstruct, regenerate, beautify, redesign…

hugohe3/ppt-master · 108 tokens

slidev

Create and present web-based slidedecks for developers using Slidev with Markdown, Vue components, code highlighting, animations, and interactive features. Use when building technical presentations, conference talks, code walkthroughs, teaching materials, or developer decks.

slidevjs/slidev · 51 tokens

html2pptx

Getting it into your agent

What it costs to keep this loaded

Grade B, and why

Asks for rootmediumPrivilege escalation

Makes network callslowCapability

How it starts

html2pptx

When to use

When NOT to use

Setup (one-time)

1. Python deps

2. soffice (for verification)

3. Web fonts — CRITICAL for fidelity (Read GOTCHAS.md)

What ships with it

What this file has done since we first saw it

Other skills, from other repositories

ppt-master

slidev

guizang-ppt-skill

Presentation Skills Index

fin-arch-diagram

impress-presentations