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node_modules/is-png/readme.md

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+# is-png [![Build Status](https://travis-ci.org/sindresorhus/is-png.svg?branch=master)](https://travis-ci.org/sindresorhus/is-png)
+
+> Check if a Buffer/Uint8Array is a [PNG](https://en.wikipedia.org/wiki/Portable_Network_Graphics) image
+
+
+## Install
+
+```
+$ npm install is-png
+```
+
+
+## Usage
+
+##### Node.js
+
+```js
+const readChunk = require('read-chunk'); // npm install read-chunk
+const isPng = require('is-png');
+const buffer = readChunk.sync('unicorn.png', 0, 8);
+
+isPng(buffer);
+//=> true
+```
+
+##### Browser
+
+```js
+(async () => {
+	const response = await fetch('unicorn.png');
+	const buffer = await response.arrayBuffer();
+
+	isPng(new Uint8Array(buffer));
+	//=> true
+})();
+```
+
+
+## API
+
+### isPng(buffer)
+
+Accepts a Buffer (Node.js) or Uint8Array. Returns a `boolean` of whether `buffer` is a PNG image.
+
+#### buffer
+
+The buffer to check. It only needs the first 8 bytes.
+
+
+## Related
+
+- [file-type](https://github.com/sindresorhus/file-type) - Detect the file type of a Buffer/Uint8Array/ArrayBuffer
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)