How to edit the image size in CallOut information in SSA

Add following lines in the template HTML file or create a new template file. By default, the file is located at "C:\Program Files\Pitney Bowes\SpectrumSpatialAnalyst\customerconfigurations\analyst\theme\infotemplates"
     <li class="customCalloutData">
        {{}} {{feature.Name.value}}<br/>
        <img src={{feature.Image_Link.value}} alt="Image" height="60" width="80" align="left">

Where "Name" and "Image_Link" are the field names with "Image_Link" containing the hyperlink for the image. Edit "height" and "width" parameter as per image size requirement. More field names can be added to the Callout information.
Environment Details
Product Feature: Printing-General Output
UPDATED:  March 22, 2018