AutoPPTX

AutoPPTX is a Python toolkit for automated editing of PowerPoint templates using the python-pptx library.
It is designed for data scientists, researchers, and business analysts who want to automate slide generation from structured data such as JSON files.

AutoPPTX supports intelligent replacement and styling of text, image, and table placeholders in PowerPoint templates.

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Features

• ✅ Multi-type placeholder replacement
  Replace titles, subtitles, body text, images, and tables with structured data.

• 🎨 Styling Support
  Supports style extraction, style application, and style transfer across text boxes, tables, and images — including font, alignment, background color, position, size...

• 🔍 Placeholder type recognition and content inspection
  Identify and inspect placeholder types (text, image, table) and their content.

• 🧩 Modular architecture
  Well-structured codebase with separate modules for Text, Image, Table, Type, and View.

• 🧪 Tested and standardized
  Includes unit tests and conforms to PEP8 and black code formatting.

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📽️ Demo Preview

The following animation demonstrates how AutoPPTX replaces placeholders and styles text, images, and tables based on JSON input:

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Requirements

• Python >= 3.10
• python-pptx >= 1.0.2
• lxml >= 5.3.1

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Installation

# For regular usage
pip install autopptx

# For development (includes test dependencies)
pip install -e ".[dev]"

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Usage

CLI Example

python -m autopptx.core.runner \
    --template ./data/template.pptx \
    --input ./data/input_data.json \
    --output ./data/output_demo.pptx

Python API Example

from autopptx.core.runner import main

main(
    template_path="./data/template.pptx",
    input_json="./data/input_data.json",
    output_path="./data/output_demo.pptx",
)

Example Input (input_data.json)

[
  {
    "title": "What They Eat",
    "subtitle": "Table 1",
    "bodytext": "Cats need protein-rich diets, primarily consisting of meat.",
    "table": [
      [
        ["Animal", "Favorite Food"],
        ["Cat", "Fish, Meat"],
        ["Bunny", "Carrots, Hay"]
      ]
    ]
  }
]

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Project Structure

AutoPPTX/
├── autopptx/             # 📦 Main Python package
│   ├── Text/             # Text replacement & style
│   ├── Image/            # Image replacement & layout
│   ├── Table/            # Table replacement & formatting
│   ├── Type/             # Placeholder type detection
│   ├── View/             # Slide viewer tools
│   └── core/             # CLI runner entry point
├── data/                 # Example JSON and PPTX templates
├── assets/               # README media (GIFs, images)
├── tests/                # Unit tests
├── env.sh                # Environment setup script
├── pyproject.toml        # Build & packaging configuration
├── MANIFEST.in           # Packaging resource includes
├── requirements.txt      # Python dependencies list
├── .gitignore            # Git ignore rules
├── LICENSE               # MIT License
└── README.md             # Project documentation

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Development

Clone the repo and set up:

git clone https://github.com/chenzhex/AutoPPTX.git
cd AutoPPTX
pip install -e ".[dev]"

Code Formatting

black autopptx tests

Running Tests

pytest tests/ --cov=autopptx

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Contributing

Contributions, issues, and feature requests are welcome!
Please open a GitHub Issue or submit a Pull Request.

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License

This project is licensed under the MIT License. See the LICENSE file for details.

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Citation

If you use AutoPPTX in your research, please cite the following JOSS paper:

@article{chen2025autopptx,
  title   = {AutoPPTX: Automated PowerPoint Generation with Python},
  author  = {Chen, Zhe},
  journal = {Journal of Open Source Software},
  year    = {2025},
  note    = {Submitted}
}

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AutoPPTX simplifies and streamlines automated slide generation for reproducible research and business reporting.