Use this skill any time a .pptx file is involved in any way — as input, output, or both. This includes: creating slide decks, pitch decks, or presentations; reading, parsing, or extracting text from any .pptx file (even if the extracted content will be used elsewhere, like in an email or summary); editing, modifying, or updating existing presentations; combining or splitting slide files; working with templates, layouts, speaker notes, or comments. Trigger whenever the user mentions \"deck,\" ...
Scanned 9/8/2026
Install to Claude Code
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---
name: pptx
description: "Use this skill any time a .pptx file is involved in any way — as input, output, or both. This includes: creating slide decks, pitch decks, or presentations; reading, parsing, or extracting text from any .pptx file (even if the extracted content will be used elsewhere, like in an email or summary); editing, modifying, or updating existing presentations; combining or splitting slide files; working with templates, layouts, speaker notes, or comments. Trigger whenever the user mentions \"deck,\" \"slides,\" \"presentation,\" or references a .pptx filename, regardless of what they plan to do with the content afterward. If a .pptx file needs to be opened, created, or touched, use this skill."
license: Proprietary. LICENSE.txt has complete terms
---
# PPTX Skill
## Quick Reference
| Task | Guide |
|------|-------|
| Read/analyze content | `python -m markitdown presentation.pptx` |
| Edit or create from template | Read [editing.md](editing.md) |
| Create from scratch | Read [pptxgenjs.md](pptxgenjs.md) |
---
## Reading Content
```bash
# Text extraction
python -m markitdown presentation.pptx
# Visual overview
python scripts/thumbnail.py presentation.pptx
# Raw XML
python scripts/office/unpack.py presentation.pptx unpacked/
```
---
## Editing Workflow
**Read [editing.md](editing.md) for full details.**
1. Analyze template with `thumbnail.py`
2. Unpack → manipulate slides → edit content → clean → pack
---
## Creating from Scratch
**Read [pptxgenjs.md](pptxgenjs.md) for full details.**
Use when no template or reference presentation is available.
---
## Design Ideas
**Não crie slides entediantes.** Bullets simples em fundo branco não impressionam ninguém. Considere ideias desta lista para cada slide.
### Before Starting
- **Pick a bold, content-informed color palette**: A paleta deve se sentir projetada PARA ESTE tópico. Se você pudesse trocar suas cores em uma apresentação completamente diferente e ainda funcionasse, você não fez escolhas específicas o suficiente.
- **Dominance over equality**: Uma cor deve dominar (60-70% de peso visual), com 1-2 tons de apoio e um accent agudo. Nunca dê a todas as cores peso igual.
- **Dark/light contrast**: Fundos escuros para slides de título + conclusão, fundos claros para conteúdo (estrutura de "sanduíche"). Ou se comprometa com escuro em toda a apresentação para uma sensação premium.
- **Commit to a visual motif**: Escolha UM elemento distintivo e repita-o — molduras de imagem arredondadas, ícones em círculos coloridos, bordas grossas de um lado. Mantenha-o em todos os slides.
### Color Palettes
Escolha cores que combinem com seu tópico — não use padrão genérico azul. Use estas paletas como inspiração:
| Theme | Primary | Secondary | Accent |
|-------|---------|-----------|--------|
| **Midnight Executive** | `1E2761` (navy) | `CADCFC` (ice blue) | `FFFFFF` (white) |
| **Forest & Moss** | `2C5F2D` (forest) | `97BC62` (moss) | `F5F5F5` (cream) |
| **Coral Energy** | `F96167` (coral) | `F9E795` (gold) | `2F3C7E` (navy) |
| **Warm Terracotta** | `B85042` (terracotta) | `E7E8D1` (sand) | `A7BEAE` (sage) |
| **Ocean Gradient** | `065A82` (deep blue) | `1C7293` (teal) | `21295C` (midnight) |
| **Charcoal Minimal** | `36454F` (charcoal) | `F2F2F2` (off-white) | `212121` (black) |
| **Teal Trust** | `028090` (teal) | `00A896` (seafoam) | `02C39A` (mint) |
| **Berry & Cream** | `6D2E46` (berry) | `A26769` (dusty rose) | `ECE2D0` (cream) |
| **Sage Calm** | `84B59F` (sage) | `69A297` (eucalyptus) | `50808E` (slate) |
| **Cherry Bold** | `990011` (cherry) | `FCF6F5` (off-white) | `2F3C7E` (navy) |
### For Each Slide
**Every slide needs a visual element** — image, chart, icon, or shape. Text-only slides are forgettable.
**Layout options:**
- Two-column (text left, illustration on right)
- Icon + text rows (icon in colored circle, bold header, description below)
- 2x2 or 2x3 grid (image on one side, grid of content blocks on other)
- Half-bleed image (full left or right side) with content overlay
**Data display:**
- Large stat callouts (big numbers 60-72pt with small labels below)
- Comparison columns (before/after, pros/cons, side-by-side options)
- Timeline or process flow (numbered steps, arrows)
**Visual polish:**
- Icons in small colored circles next to section headers
- Italic accent text for key stats or taglines
### Typography
**Choose an interesting font pairing** — don't default to Arial. Pick a header font with personality and pair it with a clean body font.
| Header Font | Body Font |
|-------------|-----------|
| Georgia | Calibri |
| Arial Black | Arial |
| Calibri | Calibri Light |
| Cambria | Calibri |
| Trebuchet MS | Calibri |
| Impact | Arial |
| Palatino | Garamond |
| Consolas | Calibri |
| Element | Size |
|---------|------|
| Slide title | 36-44pt bold |
| Section header | 20-24pt bold |
| Body text | 14-16pt |
| Captions | 10-12pt muted |
### Spacing
- 0.5" minimum margins
- 0.3-0.5" between content blocks
- Leave breathing room—don't fill every inch
### Avoid (Common Mistakes)
- **Não repita o mesmo layout** — varie colunas, cards e callouts entre slides
- **Não centralize corpo de texto** — alinhe à esquerda parágrafos e listas; centralize apenas títulos
- **Não economize em contraste de tamanho** — títulos precisam de 36pt+ para se destacar de 14-16pt de corpo
- **Não use azul como padrão** — escolha cores que reflitam o tópico específico
- **Não misture espaçamento aleatoriamente** — escolha gaps de 0.3" ou 0.5" e use consistentemente
- **Não estile um slide e deixe o resto simples** — se comprometa completamente ou mantenha simplicidade em toda a apresentação
- **Não crie slides apenas com texto** — adicione imagens, ícones, gráficos ou elementos visuais; evite título simples + bullets
- **Não esqueça padding em caixas de texto** — ao alinhar linhas ou formas com bordas de texto, defina `margin: 0` na caixa de texto ou compense a forma para levar em conta o padding
- **Não use elementos com baixo contraste** — ícones E texto precisam de contraste forte contra o fundo; evite texto claro em fundos claros ou texto escuro em fundos escuros
- **NUNCA use linhas de accent sob títulos** — estas são marca registrada de slides gerados por IA; use espaço em branco ou cor de fundo em vez disso
---
## QA (Required)
**Assuma que há problemas. Seu trabalho é encontrá-los.**
Sua primeira renderização quase nunca está correta. Aborde QA como uma caça a bugs, não como etapa de confirmação. Se você encontrou zero problemas na primeira inspeção, você não estava procurando com atenção suficiente.
### Content QA
```bash
python -m markitdown output.pptx
```
Verifique conteúdo faltando, erros de digitação, ordem errada.
**When using templates, check for leftover placeholder text:**
```bash
python -m markitdown output.pptx | grep -iE "xxxx|lorem|ipsum|this.*(page|slide).*layout"
```
Se grep retornar resultados, corrija-os antes de declarar sucesso.
### Visual QA
**⚠️ USE SUBAGENTS** — even for 2-3 slides. You've been staring at the code and will see what you expect, not what's there. Subagents have fresh eyes.
Convert slides to images (see [Converting to Images](#converting-to-images)), then use this prompt:
```
Visually inspect these slides. Assume there are issues — find them.
Look for:
- Overlapping elements (text through shapes, lines through words, stacked elements)
- Text overflow or cut off at edges/box boundaries
- Decorative lines positioned for single-line text but title wrapped to two lines
- Source citations or footers colliding with content above
- Elements too close (< 0.3" gaps) or cards/sections nearly touching
- Uneven gaps (large empty area in one place, cramped in another)
- Insufficient margin from slide edges (< 0.5")
- Columns or similar elements not aligned consistently
- Low-contrast text (e.g., light gray text on cream-colored background)
- Low-contrast icons (e.g., dark icons on dark backgrounds without a contrasting circle)
- Text boxes too narrow causing excessive wrapping
- Leftover placeholder content
For each slide, list issues or areas of concern, even if minor.
Read and analyze these images:
1. /path/to/slide-01.jpg (Expected: [brief description])
2. /path/to/slide-02.jpg (Expected: [brief description])
Report ALL issues found, including minor ones.
```
### Verification Loop
1. Generate slides → Convert to images → Inspect
2. **List issues found** (if none found, look again more critically)
3. Fix issues
4. **Re-verify affected slides** — one fix often creates another problem
5. Repeat until a full pass reveals no new issues
**Do not declare success until you've completed at least one fix-and-verify cycle.**
---
## Converting to Images
Convert presentations to individual slide images for visual inspection:
```bash
python scripts/office/soffice.py --headless --convert-to pdf output.pptx
pdftoppm -jpeg -r 150 output.pdf slide
```
This creates `slide-01.jpg`, `slide-02.jpg`, etc.
To re-render specific slides after fixes:
```bash
pdftoppm -jpeg -r 150 -f N -l N output.pdf slide-fixed
```
---
## Dependencies
- `pip install "markitdown[pptx]"` - text extraction
- `pip install Pillow` - thumbnail grids
- `npm install -g pptxgenjs` - creating from scratch
- LibreOffice (`soffice`) - PDF conversion (auto-configured for sandboxed environments via `scripts/office/soffice.py`)
- Poppler (`pdftoppm`) - PDF to imagesIs this your skill, or is something wrong with this listing? Request removal or report an issue. Author removals are honored within 72 hours.
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