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Add a checkbox into media window for insert a javascript zoom to large image with jQuery ColorBox. 
The basic idea id build from Viva Zoom Plugin , but i want no use Highslide but jquery. 
The plugin is a simple version of the more powerful <a href="https://wordpress.org/extend/plugins/jquery-colorbox/" rel="ugc">“jQuery Colorbox”</a>

JQuery Colorbox Zoom

Add a checkbox into media window for insert a javascript zoom to large image with jQuery ColorBox.

Alexandru Muscalu

Zoom Image is an WordPress plugin that adds zooming effect over WooCommerce shops on featured images, thumbnails and variations in a simple and elegant mode. 
Zoom Image offers a few options for customizing it to better suit your needs. 
Customizing options can be found in your dashboard “Settings” -> “Zoom Image”.
<ol>
<li>Adding zoom effect over thumbnails: Tick the check box “Zoom over thumbnails”.</li>
<li>Changing zooming effect over featured image (effect style), “zoom effect style”: Select one from the two options /styles: “Window” ,”Inner”.</li>
</ol>
For better understanding on how Zoom Image works please check the “Screenshots” tab and the official page of the plugin: http://www.outsourcing-webdesign.com/wordpress-plugins/.

Zoom Image

Add zoom effect over featured image, thumbnails and variations on WooCommerce shops in a simple and elegant mode.

JQuery Colorbox Zoom vs Zoom Image