creating-presentations

# PPTX Processing `.pptx` is a ZIP archive of XML and resources. Choose workflow by intent. ## Workflow Decision | Intent | Workflow | Reference | |--------|----------|-----------| | **Read text** | markitdown → markdown | [thumbnails-and-conversion.md](references/thumbnails-and-conversion.md) | | **Analyze layout / comments / theme** | unpack → raw XML | [thumbnails-and-conversion.md](references/thumbnails-and-conversion.md) | | **Create new from scratch** | html2pptx | [html2pptx.md](html2pptx.md) + [design-patterns.md](references/design-patterns.md) | | **Create using template** | rearrange + inventory + replace | [template-workflow.md](references/template-workflow.md) | | **Edit existing slides** | unpack → OOXML → pack | [ooxml.md](ooxml.md) | | **Visual review** | thumbnail grids | [thumbnails-and-conversion.md](references/thumbnails-and-conversion.md) | ## Iron Rules - **Color choice is design** — see [palettes.md](references/palettes.md), state your approach BEFORE code. - **Web-safe fonts only** — Arial, Helvetica, Times New Roman, Georgia, Courier New, Verdana, Tahoma, Trebuchet MS, Impact. - **Layout matches content count** — 2 items → 2 columns; 3 → 3; never force. - **Validate visually** — always generate thumbnails after creation, inspect for cutoff/overlap/contrast. ## Create New (without template) — html2pptx 1. **MANDATORY — READ ENTIRE FILE**: `html2pptx.md`. NEVER set range limits. 2. Create HTML per slide (e.g., 720pt × 405pt for 16:9) - Use `<p>...