Hasasasa/html-to-editable-pptx

Última actividad de origen registrada: 7 de julio de 2026 a las 09:55

Catálogo de SkillsMP actualizado: 12 de noviembre de 2026 a las 12:52

skills recopiladas: 1

Estrellas en GitHub: 94
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<h1 align="center"><b>HTML-TO-PPTX</b></h1> <p align="center"> <a href="https://www.python.org/"><img src="https://img.shields.io/badge/Python-3.10%2B-3776AB?logo=python&logoColor=white" alt="Python"></a> <a href="LICENSE"><img src="https://img.shields.io/badge/License-MIT-yellow.svg" alt="License: MIT"></a> <a href="#manual-usage-without-claude-code"><img src="https://img.shields.io/badge/Platform-Windows%20%7C%20macOS%20%7C%20Linux-lightgrey" alt="Platform"></a> <a href="SKILL.md"><img src="https://img.shields.io/badge/Claude%20Code-skill-D97757" alt="Claude Code skill"></a> </p> <p align="center"><sub>📖 <b>English</b> ｜ <a href="README.zh-CN.md">中文</a></sub></p> Convert HTML slide decks into editable `.pptx`: text stays as native PowerPoint textboxes, fonts are subset on demand, complex CSS decorations fall back to local snapshots, and HTML/PPT side-by-side audit material is generated for review. <table align="center"> <tr> <td width="50%"><img src="assets/compare/yanshi2_html_grid.png" alt="Original HTML rendering"></td> <td width="50%"><img src="assets/compare/yanshi2_ours_grid.png" alt="html-to-pptx output rendered in PowerPoint"></td> </tr> <tr> <td align="center"><sub><b>Original HTML</b></sub></td> <td align="center"><sub><b>html-to-pptx output, opened in PowerPoint</b></sub></td> </tr> </table> <p align="center"><sub>Text stays as editable vectors; complex decorations are rasterized locally.</sub></p> ## Why this exists HTML is a great medium for slide decks — layout, typography, animation, and complex visuals are all more flexible than in PowerPoint. But delivery often requires `.pptx`, and most "HTML → PPT" tools flatten each page into a single image, leaving text uneditable, unsearchable, and pixelated when zoomed. html-to-pptx avoids the "whole-page screenshot" route. It decomposes HTML into objects PowerPoint understands: text becomes editable textboxes; simple geometry becomes native shapes / lines; effects PPT can't express natively (gradients, shadows, filters, blend modes) are snapshotted locally and placed as a decoration layer behind the vector text. The result: the output stays close to the HTML source while remaining searchable, editable, and rescalable in PowerPoint / WPS — not a stack of immutable images. ## Gets better with use Each install keeps a private `references/lessons-learned.md` — seeded once from the committed template, then gitignored. When the audit loop turns up a generalizable HTML anti-pattern or OOXML boundary, the fix recipe gets appended there. Every subsequent convert re-reads the file, so decks sharing traits with ones you've already audited tend to land cleaner on the first pass. The local copy is never overwritten by upstream — `git pull` updates the template, not your accumulated notes. ## What it handles Supports single-file HTML decks from [beautiful-html-templates](https://github.com/zarazhangrui/beautiful-html-templates) / [guizang-ppt-skill](https://github.com/op7418/guizang-ppt-skill) / Reveal.js / hand-written decks / browser fullscreen pages, with automatic slide detection. CSS → PPT routing: | HTML element / CSS | What it becomes in PPT | |---|---| | Text, rich text, color, size, tracking, line-height, alignment | Editable textboxes — searchable and scalable | | Background color, border, border-radius, lines | Native OOXML geometry | | `gradient`, `box-shadow`, `filter`, `backdrop-filter`, `mix-blend-mode`, complex transforms | Local snapshot underlay; text still drawn on top as vector | | SVG, images, canvas | Embedded directly | | Google Fonts | Subset by characters actually used; CJK content auto-seeds Noto Sans SC / Noto Serif SC | For the full CSS coverage matrix, see [references/supported-css.md](references/supported-css.md). ## Quick start (Claude Code) ### Install In a Claude Code session, just hand Claude the repo URL: ```text Install this skill for me: https://github.com/Hasasasa/claude-skill-html-to-pptx ``` Claude will `git clone` it into the right skills directory for your platform (macOS / Linux: `~/.claude/skills/`; Windows: `%USERPROFILE%\.claude\skills\`) and walk you through installing Python 3.10+, Playwright, and dependencies. System-level steps will still ask for your confirmation. ### Use After install, ask in plain language: ```text Convert D:\path\to\deck.html to pptx ``` Full skill invocation rules, audit mode, and fix discipline are in [SKILL.md](SKILL.md). ## Manual usage (without Claude Code) If you're not using Claude Code, clone the repo and run the CLI directly. ### Install Requires Python 3.10+ and pip. ```bash git clone https://github.com/Hasasasa/claude-skill-html-to-pptx.git cd claude-skill-html-to-pptx pip install -r requirements.txt python -m playwright install chromium ``` The visual audit step renders `.pptx` to PNG. Either of the following works: - Windows + Office - LibreOffice `requirements.txt` already includes `pywin32` (Windows-only) and `pdf2image`. For the LibreOffice route, you also need LibreOffice installed on the system; on Windows, `pdf2image` typically needs Poppler too. The `.pptx` itself still generates without a renderer — only the HTML/PPT side-by-side audit images are skipped. ### Run ```bash python convert.py path/to/deck.html ``` Output goes to `path/to/deck.pptx` next to the input. On first run, a working copy at `path/to/deck.audited.html` is created automatically; all subsequent audit fixes modify this copy, leaving the original HTML untouched. Common flags: | Flag | What it does | |---|---| | `--out <path>` | Custom output `.pptx` path | | `--keep-screenshots` | Keep per-slide HTML reference screenshots and measurement files | | `--install-user-fonts` | Install non-CJK fonts into the user font directory so WPS / PowerPoint COM can render them | | `--no-embed-fonts` | Skip font embedding — smaller file but may fall back to system fonts on other machines | | `--no-preflight` | Skip the Stage 1 risk pre-scan | | `--no-verify` | Skip the Stage 5a structural self-check | | `--no-visual-audit` | Skip the Stage 5b visual audit material generation | | `--only-slides 2,7,12` | Re-run only the listed slides (incremental mode for audit iteration) | | `--cleanup` | Clean up audit / measurement / preflight intermediate artifacts | ### Tests Regression tests cover OOXML invariants (assemble), font-resolver caching semantics, and browser-based measure/discovery checkpoints (auto-skipped if Playwright/Chromium is unavailable): ```bash python -m pytest tests -q ``` ## More demos Each pair: HTML rendering on the left, html-to-pptx output (rendered in PowerPoint) on the right. ### Signal <table align="center"> <tr> <td width="50%"><img src="assets/compare/yanshi1_html_grid.png" alt="Signal HTML rendering"></td> <td width="50%"><img src="assets/compare/yanshi1_ours_grid.png" alt="Signal PPT output"></td> </tr> <tr> <td align="center"><sub><b>HTML</b></sub></td> <td align="center"><sub><b>html-to-pptx output</b></sub></td> </tr> </table> ### Market Outlook <table align="center"> <tr> <td width="50%"><img src="assets/compare/blue_html_grid.png" alt="Market Outlook HTML rendering"></td> <td width="50%"><img src="assets/compare/blue_ours_grid.png" alt="Market Outlook PPT output"></td> </tr> <tr> <td align="center"><sub><b>HTML</b></sub></td> <td align="center"><sub><b>html-to-pptx output</b></sub></td> </tr> </table> ### OpenClaw — Human-AI Collaboration Framework <table align="center"> <tr> <td width="50%"><img src="assets/compare/openclaw_html_grid.png" alt="OpenClaw HTML rendering"></td> <td width="50%"><img src="assets/compare/openclaw_ours_grid.png" alt="OpenClaw PPT output"></td> </tr> <tr> <td align="center"><sub><b>HTML</b></sub></td> <td align="center"><sub><b>html-to-pptx output</b></sub></td> </tr> </table> ### 8-Bit Orbit <table align="center"> <tr> <td width="50%"><img src="assets/compare/8bit_html_grid.png" alt="8-Bit Orbit HTML rendering"></td> <td width="50%"><img src="assets/compare/8bit_ours_grid.png" alt="8-Bit Orbit PPT output"></td> </tr> <tr> <td align="center"><sub><b>HTML</b></sub></td> <td align="center"><sub><b>html-to-pptx output</b></sub></td> </tr> </table> ### Apex Group (Bold Poster) <table align="center"> <tr> <td width="50%"><img src="assets/compare/bold_html_grid.png" alt="Bold Poster HTML rendering"></td> <td width="50%"><img src="assets/compare/bold_ours_grid.png" alt="Bold Poster PPT output"></td> </tr> <tr> <td align="center"><sub><b>HTML</b></sub></td> <td align="center"><sub><b>html-to-pptx output</b></sub></td> </tr> </table> ### Broadside <table align="center"> <tr> <td width="50%"><img src="assets/compare/broadside_html_grid.png" alt="Broadside HTML rendering"></td> <td width="50%"><img src="assets/compare/broadside_ours_grid.png" alt="Broadside PPT output"></td> </tr> <tr> <td align="center"><sub><b>HTML</b></sub></td> <td align="center"><sub><b>html-to-pptx output</b></sub></td> </tr> </table> ## Pipeline ```text [1 preflight] -> [2 measure] -> [3 assemble] -> [4 embed fonts] -> [5a self check] -> [5b visual audit] preflight.py measure.py assemble.py embed_fonts.py self_check.py visual_audit.py ``` - `preflight`: scan for high-risk HTML/CSS patterns. - `measure`: probe the DOM with Playwright, extracting text, shape, media, and decoration records. - `assemble`: write OOXML — textbox / shape / media / snapshot. - `embed_fonts`: subset and embed fonts by characters actually used. - `self_check`: scan PPTX for structural risks and call the renderer to export per-slide PNGs. - `visual_audit`: generate HTML/PPT side-by-side images, contact sheet, audit index, and the review prompt. ## Design principles | Principle | What it means | |---|---| | Vector-first | Text and simple geometry stay as native PPT objects — editable, searchable, scalable | | Local fallback | Only complex decorations go through the snapshot channel — no whole-page rasterization | | Portable fonts | Google Fonts auto-resolved and subset-embedded to reduce cross-machine drift | | Auditable | Per-slide HTML/PPT comparison material lets visual issues be located and iterated | | Source-preserving | A `.audited.html` working copy is created automatically; the original HTML is never modified | ## Further reading - [SKILL.md](SKILL.md): Claude Code skill invocation rules, audit mode, fix discipline. - [references/methodology.md](references/methodology.md): the five-step pipeline and anti-assumption checklist. - [references/supported-css.md](references/supported-css.md): CSS-to-PPT routing coverage matrix. - [references/lessons-learned.md.example](references/lessons-learned.md.example): historical issues, HTML anti-patterns, and OOXML boundaries.

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html-to-pptx

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当用户想把 HTML 幻灯片转成 .pptx 时触发——"HTML 转 PPT"、"网页幻灯片转 pptx"、"把这个 deck 转成 ppt"、"给同事一份 ppt 副本"、"汇报不方便放浏览器"、给了 .html 路径 + 提到 ppt/pptx/演示/幻灯片。保留矢量文字可编辑、字体按需嵌入、复杂装饰自动走截图兜底；不依赖 reveal.js / 自写 deck 等具体框架。

Idioma del texto original: chino

2026-07-07

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