go-watermark

This package allows you to add customizable watermarks to images using the Go programming language. It provides functionalities for positioning, repeating text, and adjusting font properties.

Installation

go get github.com/michaelwp/go-watermark

Example

package main

import (
   "fmt"
   goWatermark "github.com/michaelwp/go-watermark"
   "image/color"
)


func main() {
    watermark := &Watermark{
        Image:      "input.png",
        OutputFile: "output.png",
        Text:       "Sample Watermark",
        Position: Position{
            PosX:  100,
            PosY:  100,
            PosAX: 0.5,
            PosAY: 0.5,
        },
        Font: Font{
            FontName: "path/to/font.ttf",
            FontSize: 36,
        },
        Color:       color.RGBA{255, 0, 0, 255},
        Align:       AlignCenter,
        LineSpacing: 1.5,
        Repeat: Repeat{
            RepX:        1,
            RepY:        1,
            WordSpacing: 2,
        },
    }

    if err := AddWatermark(watermark); err != nil {
        fmt.Println("Error adding watermark:", err)
    } else {
        fmt.Println("Watermark added successfully!")
    }
}

This example demonstrates how to configure and apply a watermark to an image using the go_watermark package. Adjust the parameters as needed to fit your specific use case.

for detail explanation visit: How to Add a Watermark onto an Image Using Go