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PPTX Scientific Poster Builder

Generates and audits macro-free, editable PowerPoint conference posters from author-approved local content only.

Docs & OfficeAdvanced★ 33,030⑂ 3,248AI score 8/10Last updated: Aug 9, 2026

What it does

Takes a strict local JSON manifest and builds a real one-slide .pptx research poster with python-pptx — no HTML conversion, no external templates, no network calls. Along the way it enforces:

  • Physical specs (trim, bleed, safe margin), PowerPoint canvas size, and print scale planning
  • SHA-256 hashes, provenance, licensing, and effective DPI (pixels ÷ final placed inches) for every image
  • WCAG 2.2 sRGB contrast math plus redundant, non-color-only data encoding
  • Overlap, out-of-bounds, final font size, and reading-order checks
  • Package security: macros/VBA, ActiveX, OLE, external relationships, unsafe ZIP paths — inspected via bounded ZIP/XML reads without ever opening or executing the file

Author approval is bound to the manifest content hash, so any non-approval edit invalidates it. Drafts fail closed rather than filling in plausible placeholders.

Who it's for

  • Researchers and grad students responsible for a printed large-format conference poster
  • Labs with accessibility requirements (alt text, reading order) and source-traceability obligations
  • Anyone who must match a print shop's trim/bleed/CMYK proof requirements exactly

Examples

  1. A0 conference poster: fill the manifest within the conference size limits, get the hash from validate_manifest.py --print-content-hash, record PI approval, then run generate_poster.py.
  2. Figure preflight: run inventory_images.py to see effective DPI and leftover EXIF/XMP metadata, and swap out figures that fall below threshold.
  3. Audit an inherited deck: run inspect_pptx.py to confirm a received .pptx has no macros, OLE objects, or external links — without opening it.

· · · Install guide · · ·

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the skills/pptx-posters folder from the GitHub repo K-Dense-AI/scientific-agent-skills into my ~/.claude/skills/pptx-posters/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/K-Dense-AI/scientific-agent-skills.git /tmp/scientific-agent-skills && mkdir -p ~/.claude/skills && cp -r /tmp/scientific-agent-skills/skills/pptx-posters ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Confirm Python 3.10+ and uv are installed: python3 --version, uv --version.
  3. Clone the repository: git clone https://github.com/K-Dense-AI/scientific-agent-skills.git
  4. Copy the skill into place: mkdir -p ~/.claude/skills && cp -r scientific-agent-skills/skills/pptx-posters ~/.claude/skills/
  5. Install the exact pinned dependencies: cd ~/.claude/skills/pptx-posters && uv venv && uv pip install "python-pptx==1.0.2" "Pillow==12.3.0" "lxml==6.1.1"
  6. Restart Claude Code and ask for something like "build my PowerPoint conference poster".
  7. Start by copying assets/poster_manifest_template.json into your project and replacing every token with real content, sources, and local image paths.
View source on GitHub ↗License: MIT