Thumbnail Of Pptx

Community

pamelafox

thumbnail-of-pptx

Capture a thumbnail image of a slide from a OneDrive/Office presentation link. Opens the PowerPoint web viewer in a headless browser and screenshots the slide canvas, producing a clean 16:9 image with no viewer chrome. Works even when the PPTX is not downloadable (e.g. personal OneDrive shares), since it screenshots the rendered slide rather than converting the file. USE FOR: make a thumbnail from a PPTX, screenshot a slide, title-slide image, OneDrive slide thumbnail, talk thumbnail from slides.

Overview

Publisher	pamelafox
Repository	`presentation-skills`
Skill name	`thumbnail-of-pptx`
Stars	129
Forks	23
Bundled files	1
License	MIT
Links	Skill source Repository

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
1 bundled files
Scripts, templates, and references the model can read while it works. Files are read-only and never executed.
Open source
Published by pamelafox on GitHub. Read the source before you install it.

Installation

Install the Thumbnail Of Pptx AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/pamelafox/presentation-skills/tree/main/.agents/skills/thumbnail-of-pptx
Enable the skill in any chat where you want it available.

Store

Installed

Skills

Add skills

Import one or more skills from a public GitHub folder or a local .skill or .zip archive, or SKILL.md file.

From GitHub URLFrom .skill, .zip, or SKILL.md

GitHub repo or folder

https://github.com/pamelafox/presentation-skills/tree/main/.agents/skills/thumbnail-of-pptx

Points to a single skill folder, or any folder that contains multiple skills. Public repos only.

CancelContinue

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/pamelafox/presentation-skills.git /tmp/presentation-skills
mkdir -p .claude/skills
cp -r /tmp/presentation-skills/.agents/skills/thumbnail-of-pptx .claude/skills/thumbnail-of-pptx

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Thumbnail Of Pptx in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Thumbnail Of Pptx on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Thumbnail Of Pptx is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Thumbnail of a PPTX slide

Run the thumbnail_of_pptx.py script to capture a slide thumbnail from a OneDrive/Office presentation link:

bash
uv run .agents/skills/thumbnail-of-pptx/thumbnail_of_pptx.py <url> <output_path>

Arguments

url (required): A OneDrive sharing link, or an aka.ms short link that redirects to one (e.g. https://aka.ms/my-talk-slides). The link must open the Office Online / PowerPoint web viewer.
output_path (required): Path to write the PNG thumbnail (e.g. thumbnail.png). Parent directories are created if needed.
--slide N (optional): 1-based slide number to capture. Defaults to 1, the title slide.
--scale N (optional): Device scale factor for a crisper image. Defaults to 2.
--wait MS (optional): Milliseconds to wait for the slide to render before screenshotting. Defaults to 9000. Increase for large decks or slow networks.

Outputs

A single PNG image of the requested slide, cropped to the slide canvas (roughly 16:9, no PowerPoint viewer UI).

Prerequisites

Playwright browsers must be installed:

bash
uv run playwright install chromium

How it works

Launches headless Chromium and navigates to the URL (following aka.ms redirects to the real OneDrive viewer).
Waits for the network to go idle, then waits a fixed delay for the Office Online viewer to stream in and paint the slide.
Locates the viewer iframe (named wacIframe, with a fallback that finds any frame containing a <canvas>).
Optionally advances to slide N by focusing the canvas and pressing the right-arrow key.
Element-screenshots the slide <canvas> so the output contains only the slide, not the surrounding viewer chrome.

Notes

This is complementary to fetch-slides: use fetch-slides when you need the full deck as a PDF (requires LibreOffice for PPTX), and this skill when you just want a lightweight thumbnail image of one slide and the file may not be downloadable.
Because it relies on the public web viewer, the sharing link must be viewable by anyone with the link.

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

thumbnail_of_pptx.py5 KB

Frequently asked questions

What does the Thumbnail Of Pptx AI skill do?

Why use Thumbnail Of Pptx on TypingMind?

Because you install it once and use it with any model. Thumbnail Of Pptx is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Thumbnail Of Pptx in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/pamelafox/presentation-skills/tree/main/.agents/skills/thumbnail-of-pptx. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Thumbnail Of Pptx?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Thumbnail Of Pptx?

As many as you like. As long as a model supports skills, you can use Thumbnail Of Pptx with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Thumbnail Of Pptx AI skill free?

Yes. It is published on GitHub by pamelafox under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Thumbnail of a PPTX slide

Arguments

Outputs

Prerequisites

How it works

Notes

Bundled files

Frequently asked questions

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