Converting PNG files to JPG

main.go

package main

import (
    "image/jpeg"
    "image/png"
    "os"
    "strings"
)

func main() {
    // Open the PNG file
    pngFile, err := os.Open("input.png")
    if err != nil {
        panic(err)
    }
    defer pngFile.Close()

    // Decode the PNG image
    pngImg, err := png.Decode(pngFile)
    if err != nil {
        panic(err)
    }

    // Create a new JPG file
    jpgFile, err := os.Create(strings.TrimSuffix("input.png", ".png") + ".jpg")
    if err != nil {
        panic(err)
    }
    defer jpgFile.Close()

    // Encode the PNG image as a JPG image
    err = jpeg.Encode(jpgFile, pngImg, nil)
    if err != nil {
        panic(err)
    }
}