Documentation Center

Setting up Contextual Image Delivery (SDL Mobile)

The default Context Engine Cartridge installed as part of SDL Digital Experience Accelerator is used to detect device/browser screen features and capabilities. This information is used to manipulate page layout and image resizing and drive a responsive design. This functionality is free to use without an SDL Mobile license, however if you do have an SDL Mobile license, you can take advantage of some additional features; First request device capability detection and Contextual Image Delivery.

About this task

First request device capability detection
You need to install the SDL Mobile Device Database to use first request device capability detection. The default device detection logic is accessible on the second request as it makes use of a javascript file executed on the first request that sets a cookie. This can mean that layouts and image sizes are not optimized the first time a user visits your site.
Contextual Image Delivery
Although the Web application provides simple default image resizing behavior, install Contextual Image Delivery in your Web application to take full advantage of the image resizing solution provided by Contextual Image Delivery.

Procedure

Install the device database for first request device capability detection.
For more information, including licensing, refer to the SDL Tridion documentation: Creating the device database.