Package Exports

@stevebel/png
@stevebel/png/lib/index.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@stevebel/png) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

png

🖼A full-featured PNG decoder and encoder. Fork of @vivaxy/png maintained as of Feb 2023.

Supports

Environments: Browsers and Node.js
Chunks: IHDR, PLTE, IDAT, IEND, tRNS, cHRM, gAMA, iCCP, sBIT, sRGB, tEXt, zTXt, iTXt, bKGD, hIST, pHYs, sPLT, tIME
Color Types: Greyscale, Truecolour, Indexed-colour (Palette), Greyscale with alpha, Truecolour with alpha
Bit Depths: 1, 2, 4, 8, 16
Filters: None, Sub, Up, Average, Paeth

Install

yarn add @stevebel/png or npm i @stevebel/png

Usage

import * as png from '@stevebel/png';

const metadata = png.decode(imageBuffer);
const imageBuffer = png.encode(metadata);

See metadata type definition in metadata.ts.

Articles

Decoding A PNG Image with JavaScript Step by Step 中文版：一步一步解码 PNG 图片

Prior Art

Project created by create-n.