Package for encoding different icon files
Encoders for Windows ICO and macOS ICNS files with fine grain control.
NOTE: Not all encode formats are currently supported but the major ones are.
$ npx @shockpkg/icon-encoder
$ npm exec @shockpkg/icon-encoder
$ npm exec shockpkg-icon-encoder
Usage: shockpkg-icon-encoder [options...] (icon.ico | icon.icns) pngs...
-v, --version Show the current version.
-h, --help Show this help message.
--raw Prefer raw png data in icon.
--png Prefer png encoding in ico.
--bmp Prefer bmp encoding in ico.
--toc Include TOC entry in icns.
import {readFile, writeFile} from 'node:fs/promises';
import {IconIco} from '@shockpkg/icon-encoder';
// Default null automatically compresses icons for backwards compatibility.
// Pass true to force icons to be PNG encoded, or false to force BMP.
const png = null;
// Default is to decode and re-encode the PNG data.
// Pass true to use the raw PNG input data when using PNG data in the icon.
const raw = false;
const ico = new IconIco();
await ico.addFromPng(await readFile('icon/256x256.png'), png, raw);
await ico.addFromPng(await readFile('icon/128x128.png'), png, raw);
await ico.addFromPng(await readFile('icon/64x64.png'), png, raw);
await ico.addFromPng(await readFile('icon/48x48.png'), png, raw);
await ico.addFromPng(await readFile('icon/32x32.png'), png, raw);
await ico.addFromPng(await readFile('icon/16x16.png'), png, raw);
await writeFile('icon.ico', ico.encode());
import {readFile, writeFile} from 'node:fs/promises';
import {IconIcns} from '@shockpkg/icon-encoder';
const icns = new IconIcns();
// Optionally include the TOC (table of contents) header.
// Newer icons will often include this, the default is false.
icns.toc = true;
// Default is to decode and re-encode the PNG data.
// Pass true to use the raw PNG input data when using PNG data in the icon.
const raw = false;
// This order matches that of iconutil with the same image set in macOS 10.14.
// Images with @2x are just 2x the size their file name suggests.
await icns.addFromPng(await readFile('icon/[email protected]'), ['ic12'], raw);
await icns.addFromPng(await readFile('icon/128x128.png'), ['ic07'], raw);
await icns.addFromPng(await readFile('icon/[email protected]'), ['ic13'], raw);
await icns.addFromPng(await readFile('icon/256x256.png'), ['ic08'], raw);
await icns.addFromPng(await readFile('icon/16x16.png'), ['ic04'], raw);
await icns.addFromPng(await readFile('icon/[email protected]'), ['ic14'], raw);
await icns.addFromPng(await readFile('icon/512x512.png'), ['ic09'], raw);
await icns.addFromPng(await readFile('icon/32x32.png'), ['ic05'], raw);
await icns.addFromPng(await readFile('icon/[email protected]'), ['ic10'], raw);
await icns.addFromPng(await readFile('icon/[email protected]'), ['ic11'], raw);
await writeFile('icon.icns', icns.encode());
import {readFile, writeFile} from 'node:fs/promises';
import {IconIcns} from '@shockpkg/icon-encoder';
const icns = new IconIcns();
await icns.addFromPng(await readFile('icon/16x16.png'), ['is32', 's8mk']);
await icns.addFromPng(await readFile('icon/32x32.png'), ['il32', 'l8mk']);
await icns.addFromPng(await readFile('icon/48x48.png'), ['ih32', 'h8mk']);
await icns.addFromPng(await readFile('icon/128x128.png'), ['it32', 't8mk']);
await writeFile('icon.icns', icns.encode());
If you find a bug or have compatibility issues, please open a ticket under issues section for this repository.
Copyright (c) 2019-2023 JrMasterModelBuilder
Licensed under the Mozilla Public License, v. 2.0.
If this license does not work for you, feel free to contact me.