Gangmax Blog

Node.js Exif Library: piexifjs

“piexifjs“ is a node.js npm library which can be used to read and write Exif data in image files.

  • Create a npm project
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npm init test-project
cd test-project
npm install piexifjs
node
  • Sample code in “node” console
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const piexif = require('piexifjs');
const fs = require("fs");
var jpeg = fs.readFileSync('/Users/auser/Downloads/IMG_1302.jpg');
var data = jpeg.toString("binary");
var exifObj = piexif.load(data);

for (var ifd in exifObj) {
    if (ifd == "thumbnail") {
        continue;
    }
    console.log("-" + ifd);
    for (var tag in exifObj[ifd]) {
        console.log("  " + piexif.TAGS[ifd][tag]["name"] + ":" + exifObj[ifd][tag]);
    }
}

From here and here.

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