Get file information based on file signature
JavaScript
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README.md

file-signature Build Status

Get file information based on file signature. This utility is used to get file information based on the file signature. It does so by looking at "magic numbers" common formats contain.

Data for this script was generated from: http://en.wikipedia.org/wiki/List_of_file_signatures

Example use:

var fileSignature = require('file-signature');
console.log(fileSignature.identify('path/to/file.jpg'));

// outputs:
// {
//   extension: 'jpg',
//   description: 'A commonly used method of lossy compression for digital photography (image).',
//   mimeType: 'image/jpg'
// }