WordPress.org

Set fullscreen background images for all posts and pages. Compatible with all major browsers and very easy to install.

• Set fullscreen background images for posts and pages
• Option to deactivate WP-Backgrounds Lite for certain pages and posts
• Compatible with all major browsers like IE7, IE8, IE9, Firefox, Opera, Safari, Chrome and other modern browsers.
• Can be used with nearly every theme (premium and free ones). For the most themes it works out of the box (i.e. for TwentyTen or boxed themes). A z-index and a background color option helps you to adjust the background layer and the color.
• Vertical & horizontal image centering
• Small fingerprint, only a few kb filesize
• Easy installation, works out of the box
• Option to adjust the background layer (z-index).

Live demo of WP-Backgrounds can be found here: InoPlugs Demo Website.

The newest versions of this plugin can be found here: WP-Backgrounds Lite. I'll try to keep the repository up to date but it's easier to host updates on my site. You'll get support there too (just leave a comment).

This plugin is the free lite version of WP-Backgrounds Premium which you can download here: WP-Backgrounds Premium - it offers a lot more features (flickr support, background slideshow, pattern, custom login panel, etc.).