image/png

Media
import "image/png"

Implements a PNG image encoder and decoder.

Example

package main

import (
    "image/png"
    "os"
)

func main() {
    f, _ := os.Open("photo.png")
    img, _ := png.Decode(f)
    _ = img
}

Key Types & Functions

EncodeDecodeEncoder

About image/png

The image/png package (imported as image/png) belongs to the Media category of Go packages. Implements a PNG image encoder and decoder.

Go's standard library is one of the language's greatest strengths, providing production-ready implementations for networking, cryptography, encoding, I/O, and more. The image/png package follows Go's philosophy of simplicity and composability — small, focused packages that combine through interfaces like io.Reader and io.Writer.

When using image/png in production, follow Go best practices: handle errors explicitly, use context for cancellation and timeouts, prefer composition over inheritance, and write table-driven tests. The Go documentation at pkg.go.dev provides comprehensive API references and examples for every exported type and function.

Related Packages

imageio