WURFL Image Tailor (WIT)

Deliver downsized images to mobile devices

WURFL Image Tailor (WIT) http://web.wurfl.io/#wit is an automatic image transformation and delivery service, based on the WURFL device detection library http://web.wurfl.io/#learnmore. WURFL will detect the device, and its screen size and it will resize and optimize (downsize) each image accordingly.

This plugin hooks automatically into the WordPress HTML image code generation process and changes each image’s src attribute, so that it is optimized for that specific device and delivered via the WURFL Image Tailor service.

The plugin also filters the post contents to replace the src attribute of images in it. But it currently does this for all (!) images that it finds in the post contents. Right now it does not replace the href attribute of links that point to images in the media gallery.

Use WordPress functions and filters

Make sure you use functions like:

• the_post_thumbnail(…)
• wp_get_attachment_image(…)
• the_content(…)

However, do not use wp_get_attachment_image_src(), because we cannot hook into it (yet)! Right now the plugin hooks into these WordPress filters:

• wp_get_attachment_image_attributes
• the_content

Adaptive Images

Also, checkout Adaptive Images for WordPress https://wordpress.org/plugins/adaptive-images/ a self-hosted, transparent mobile images solution.