Professional PPTX Deck Generator

Problem It Addresses

Raw slide generation often produces narrow 10×7.5 canvases, broken formatting when text_frame.text replaces styled runs, literal bullet characters, stale template placeholders, overflow, overlaps, and low-contrast “AI-looking” decks. This skill treats .pptx as a ZIP of XML documents and uses python-pptx for deterministic creation and editing.

How It Works

• Set the canvas first: assign slide_width = Inches(13.333) and slide_height = Inches(7.5) for 16:9 slides.
• Compose from blank layouts: use slide_layouts[6], then add add_textbox(), add_picture(), add_chart(), or add_shape() with Inches, Pt, or Emu units.
• Preserve edits: update run.text = "new content" instead of overwriting whole text frames; remove entire placeholder groups when content counts differ.
• Apply design rules: choose a themed palette, repeated visual motif, heading/body type scale, margins, and native charts.
• QA loop: inspect slide.shapes for missing, duplicate, or placeholder text, then render slides to images and check overflow, overlap, spacing, contrast, and footer collisions.

Boundaries And Notes

It is best for reproducible, inspectable, editable .pptx output; it does not replace editorial judgment about the story. Final pages still need review, especially template placeholders, chart data labels, non-native chart types rendered as images, and font width differences between previews and PowerPoint.