pptx

# PPTX Skill ## Quick Reference | Task | Guide | |------|-------| | Read/analyze content | `python -m markitdown presentation.pptx` | | Edit or create from template | Read [references/editing.md](references/editing.md) and [references/ooxml.md](references/ooxml.md) | | Create from scratch (HTML) | Read [references/html2pptx.md](references/html2pptx.md) | | Create from scratch (PptxGenJS) | Read [references/pptxgenjs.md](references/pptxgenjs.md) | ______________________________________________________________________ ## Reading Content ```bash # Text extraction python -m markitdown presentation.pptx # Visual overview python scripts/thumbnail.py presentation.pptx # Raw XML python scripts/unpack.py presentation.pptx unpacked/ ``` ______________________________________________________________________ ## Editing Workflow **Read [references/editing.md](references/editing.md) for OOXML editing details.** 1. Analyze template with `thumbnail.py` 2. Unpack → manipulate slides → edit content → clean → pack ______________________________________________________________________ ## Creating from Scratch Two approaches: - **HTML→PPTX** (via html2pptx.js): Read [references/html2pptx.md](references/html2pptx.md) - **PptxGenJS** (JavaScript library): Read [references/pptxgenjs.md](references/pptxgenjs.md) ______________________________________________________________________ ## Creating from a Template Detailed workflow using `inventory.py`, `rearrange.py`, and `replace.py`: 1. **Extract template text AND create visual thumbnail grid**: ```bash python -m markitdown template.pptx > template-content.md python scripts/thumbnail.py template.pptx ``` 2. **Analyze template and save inventory**: ```bash python scripts/inventory.py working.pptx text-inventory.json ``` 3. **Duplicate, reorder, and delete slides**: ```bash python scripts/rearrange.py template.pptx working.pptx 0,34,34,50,52 ``` 4. **Apply text replacements**: ```bash python scripts/replace.py working.pptx replacement-text.json output.pptx ``` ______________________________________________________________________ ## Design Ideas **Don't create boring slides.** Plain bullets on a white background won't impress anyone. Consider ideas from this list for each slide. ### Before Starting - **Pick a bold, content-informed color palette**: The palette should feel designed for THIS topic. If swapping your colors into a completely different presentation would still "work," you haven't made specific enough choices. - **Dominance over equality**: One color should dominate (60-70% visual weight), with 1-2 supporting tones and one sharp accent. - **Dark/light contrast**: Dark backgrounds for title + conclusion slides, light for content ("sandwich" structure). - **Commit to a visual motif**: Pick ONE distinctive element and repeat it — rounded image frames, icons in colored circles, thick single-side borders. ### Color Palettes | 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) | ### Typography | Header Font | Body Font | |-------------|-----------| | Georgia | Calibri | | Arial Black | Arial | | Trebuchet MS | Calibri | | Impact | Arial | | Element | Size | |---------|------| | Slide title | 36-44pt bold | | Section header | 20-24pt bold | | Body text | 14-16pt | | Captions | 10-12pt muted | ### Avoid - **Don't repeat the same layout** — vary columns, cards, and callouts across slides - **Don't center body text** — left-align paragraphs and lists; center only titles - **Don't default to blue** — pick colors that reflect the specific topic - **Don't create text-only slides** — add images, icons, charts, or visual elements - **NEVER use accent lines under titles** — hallmark of AI-generated slides; use whitespace or background color instead ______________________________________________________________________ ## QA (Required) **Assume there are problems. Your job is to find them.** ### Content QA ```bash python -m markitdown output.pptx ``` Check for missing content, typos, wrong order. When using templates, check for leftover placeholder text: ```bash python -m markitdown output.pptx | grep -iE "xxxx|lorem|ipsum|this.*(page|slide).*layout" ``` ### Visual QA Convert slides to images and inspect for overlapping elements, text overflow, contrast issues, and positioning problems. See [Converting to Images](#converting-to-images). ### 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.** ______________________________________________________________________ ## Scripts | Script | Purpose | |--------|---------| | `unpack.py` | Extract and pretty-print PPTX | | `pack.py` | Repack with validation | | `validate.py` | Validate PPTX XML against schemas | | `add_slide.py` | Duplicate slide or create from layout | | `clean.py` | Remove orphaned files | | `thumbnail.py` | Create visual grid of slides | | `inventory.py` | Extract text inventory from presentation | | `rearrange.py` | Duplicate, reorder, and delete slides | | `replace.py` | Apply text replacements to shapes | | `html2pptx.js` | Convert HTML slides to PowerPoint | ______________________________________________________________________ ## Converting to Images Convert presentations to individual slide images for visual inspection: ```bash python scripts/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 (PptxGenJS approach) - `npm install -g playwright` - HTML rendering (html2pptx approach) - LibreOffice (`soffice`) - PDF conversion (via `scripts/soffice.py`) - Poppler (`pdftoppm`) - PDF to images - `pip install defusedxml` - secure XML parsing