Auto Post Thumbnail PRO is a plugin to generate Featured Image (AKA Post Thumbnail) from first image in a post or any custom post type content. The plugin will also create thumbnails from several popular Video services if it finds a Video embedded in the post.
Post Thumbnails is a theme feature introduced with Version 2.9 of Wordpress. It was quickly changed to Featured Images with Version 3.0. Post Thumbnail, now Featured Image, is an image that is chosen as the representative image for Posts. The display of this image is up to the theme. Most Modern themes now use featured images in a variety of ways.
This plugin DOES NOT extract thumbnails/featured image from custom field or anywhere else.
Also check out Category Featured image Our plugin which allows you to set featured images based on categories
Features
Extracts the first Image or Video in post content and creates the featured image
If no image found in post content, use the first attached image as featured image
Existing Featured Images will not be changed
Ability to provide default featured image to use if post content doesn’t have any image
Generate thumbnails for Custom Post Types (Selectable)
Generate thumbnails from external images
Generate thumbnails from imported RSS feeds
Generate featured images for old/legacy posts via a single click
Setting to skip auto thumbnail generation right on the Post edit page
Setting for smallest image to be considered as featured image
Images inserted via most shortcodes also supported. eg: [gallery]
Auto thumbnail generation for popular video sharing services – YouTube, Vimeo, Blip.tv, Justin.tv, DailyMotion and MetaCafe. Note: this plug will not work if the video code is an iframe
Unlink Featured Images created by the plugin or all Featured Images
Fully translatable, default.po has been provided
Well supported with free updates