Automatic thumbnail creation
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You can create an automatic thumbnail using the following example:
<img src="/Utilities/ShowThumbnail.aspx?USM=1&W=100&H=100&R=1&Img=/images/myimage.jpg" />
Please note that there are W=100 and H=100 in that URL. These are the image width and height in pixels.
In that case the image path is /images/myimage.jpg. You can use that thumbnail creation technique in web app and product layouts where you can use tags to render image paths. Here are some examples
Web apps: <img src="/Utilities/ShowThumbnail.aspx?USM=1&W=100&H=100&R=1&Img={tag_myimage_value}" />
Products: <img src="/Utilities/ShowThumbnail.aspx?USM=1&W=100&H=100&R=1&Img={tag_custom1}" />
The automatic thumbnail module works to preserve the image's aspect ratio as-is. As such, it uses the larger of the two dimensions provided, and shrinks (or grows) the image inside with its existing aspect ratio to fill the larger dimension. To disable this behaviour, you can simply add "&F=True" to the query string, like so:
<img src="/Utilities/ShowThumbnail.aspx?USM=1&W=100&H=100&R=1&F=True&Img=/images/myimage.jpg" />
When using the F (force) parameter, the image will be arbitrarily resized to the dimensions you specify, which might result in distortion if the original image is not the same shape as the specified dimensions.
