Batch generate YouTube playlist thumbnails with custom text using Python

Batch generate posters with custom text

Useful to generate YouTube playlist thumbnails

Folder Structure

assets  
│
└─── fonts
│       Satisfy.ttf
│       ShadowIntoLight.ttf
│
└─── images
        poster.png

Place your TrueTypeFonts in the fonts directory and background images in the images directory

Settings

Update settings.json to customize the output

{
    "OutputPath": "out",
    "ImagesPath": "./assets/images/",
    "BackgroundImage": "poster.png",
    "FontsPath": "./assets/fonts/",
    "Title": {
        "Font": "ShadowsIntoLight.ttf",
        "Size": 300,
        "Color": "(254, 27, 28)",
        "Position": "(100, 50)"
    },
    "Subtitle": {
        "Font": "Satisfy.ttf",
        "Size": 150,
        "Color": "(85, 30, 138)",
        "Position": "(100, 500)"
    }
}

You can also change the background image, title and subtitle fonts

The color is represented by (R, G, B) values and position by (X, Y)

The fonts used here are Satisfy and ShadowsIntoLight from Google fonts

Posters

Update fileList.json to specify the titles and subtitles for the posters

{
  "Sample": {
    "Title": "PosterMark",
    "Subtitle": "Batch generate posters with custom text"
  }
}

Key of the each json object will be the file name of the poster. Here in the above example, the file name will be Sample.png

Usage

Install Python3

Clone this repository

Create a virtual environment(venv) in the cloned repository directory and activate the venv

python3 -m venv .\venv

Install pip packages

pip install -r .\requirements.txt

Update settings.json and fileList.json as required

Run python script

python posterMark.py