@fengyuanchen/exif

Exif

JavaScript Exif reader (only available in the browser).

• Homepage
• Exif standard version 2.3 (2012)

Install

npm install @fengyuanchen/exif

<script src="/path/to/exif.js"></script>

Usage

Four available usages:

• new Exif(HTMLImageElement, options)
• new Exif(HTMLImageElement.src, options)
• new Exif(File, options)
• new Exif(Blob, options)

Example:

<img id="image" src="image.jpg">

var image = document.getElementById('image');
var exif = new Exif(image, {
  done: function(tags) {
    console.log(tags);
  }
});

Options

You may set cropper options with new Exif(image, options).

exif

• Type: Boolean
• Default: true

Read Exif tags.

gps

• Type: Boolean
• Default: true

Read GPS tags.

interoperability

• Type: Boolean
• Default: true

Read interoperability tags.

ignored

• Type: Array or Boolean
• Default: ['MakerNote', 'UserComment']

Assign the ignored tags. Set false to disable it.

done

• Type: Function
• Default: null

Read success callback.

new Exif(image, {
  done: function(tags) {
    console.log(tags);
  }
});

fail

• Type: Function
• Default: null

Read error callback.

new Exif(image, {
  fail: function(message) {
    console.log(message);
  }
});

No conflict

If you have to use other global function with the same namespace, just call the Exif.noConflict static method to revert to it.

<script src="other-exif.js"></script>
<script src="exif.js"></script>
<script>
  Exif.noConflict();
  // Code that uses other `Exif` can follow here.
</script>

Browser support

• Chrome (latest 2)
• Firefox (latest 2)
• Internet Explorer 10+
• Opera (latest 2)
• Safari (latest 2)

License

MIT © Fengyuan Chen