ComfyUI Extension: ComfyUI_MarkdownImage

Authored by dasilva333

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Run ComfyUI workflows without the setup

No installs, no CUDA version roulette, no GPU sitting idle on your bill. Bring a workflow and run it in the browser.

This project generates an image from Markdown text using imgkit and wkhtmltoimage. It automatically scales the text to fit within the specified image dimensions.

README

CreateMarkdownImage ComfyUI node

This project generates an image from Markdown text using imgkit and wkhtmltoimage. It automatically scales the text to fit within the specified image dimensions.

🔧 Installation

1️⃣ Install Dependencies

pip install -r requirements.txt

2️⃣ Install wkhtmltoimage

This project requires wkhtmltoimage, which is part of wkhtmltopdf. You need to install it manually.

🔗 Download wkhtmltopdf from:
👉 https://wkhtmltopdf.org/downloads.html

Make sure to add wkhtmltoimage.exe to your system PATH, or update the script with its full path.


📌 How It Works

This script:

  1. Converts Markdown text into HTML.
  2. Renders the HTML into an image using imgkit.
  3. Dynamically adjusts the font size to maximize readability.
  4. Returns the image as a PyTorch tensor.

📊 Input Fields

| Field | Type | Description | |------------------|--------|-------------| | md_text | String | Markdown text to be rendered into an image. Supports basic formatting (bold, italic, emojis). | | border_color | String | HEX color or HTML named color for the image border (e.g., #FFFF00 for yellow). | | border_size | Int | Border thickness in pixels. | | image_width | Int | Width of the generated image in pixels. | | image_height | Int | Height of the generated image in pixels. | | background_color | String | HEX color or html color name (e.g., "lightblue"). |


🚀 Usage

from create_markdown_image import CreateMarkdownImage

generator = CreateMarkdownImage()
image_tensor = generator.createmarkdownimage(
    md_text="**Hello World!** 🚀",
    border_color="#000000",
    border_size=2,
    image_width=800,
    image_height=200,
    background_color="white"
)

This will generate an image containing "Hello World! 🚀" with a black border and a white background.


🛠️ Troubleshooting

  • If imgkit fails, ensure wkhtmltoimage.exe is installed and accessible.
  • If text doesn't scale correctly, adjust the image_width and image_height fields.

📜 License

This project is licensed under the MIT License.

Run ComfyUI workflows without the setup

No installs, no CUDA version roulette, no GPU sitting idle on your bill. Bring a workflow and run it in the browser.

Learn more