Dynamic Watermark : (dynamic-watermark)

Dynamic Watermark is npm watermark module to add watermark over image. It can add image as well as text watermark on given positions. It does great job for adding watermarks.

npm install dynamic-watermark --save

After successful installation of dynamic-watermark follow below steps:

Step 1: include dynamic-watermark package:

var watermark = require('dynamic-watermark');

Step 2: Provide following options:

var optionsImageWatermark = {
    type: "image",
    source: "a.png",
    logo: "logo.png", // This is optional if you have provided text Watermark
    destination: "output.png",
    position: {
        logoX : 200,
        logoY : 200,
        logoHeight: 200,
        logoWidth: 200
    }
};

var optionsTextWatermark = {
    type: "text",
    text: "Watermark text", // This is optional if you have provided text Watermark
    destination: "output.png",
    source: "a.png",
    position: {
        logoX : 200,
        logoY : 200,
        logoHeight: 200,
        logoWidth: 200
    },
    textOption: {
        fontSize: 100, //In px default : 20
        color: '#AAF122' // Text color in hex default: #000000
    }
};

Step 3: Final step is to call embed method by passing above options.

//optionsImageWatermark or optionsTextWatermark
watermark.embed(optionsImageWatermark, function(status) {
    //Do what you want to do here
    console.log(status);
});

Example: How to add watermark in nodejs

If there is something missing in this repo or any suggestions, then please open feature thread

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