andreyk

Use this plugin instead of tiresome saving images from the internet and uploading them to your blog. You learn the value of this grabber e.g. when you need to move your old non-WordPress site with many pictures to the WordPress-based. 
The plugin recognizes images by the presence (jpg|jpeg|gif|png) in URLs.
If you like this plugin please vote for it.
Please feel free to contact me with your questions or suggestions.

Remote Images Grabber

Fetches images from an URL or a piece of html-code, saves them directly into your blog media directory, and attaches to the appointed post.

Robert Neu

Ozzy Rodriguez

Cipher

The default behavior in WordPress is to generate attachment pages for all of the images in your media library. While this can sometimes be useful, it can also cause problems.
When you upload an image to your media library without inserting it into a post or page, it becomes an unattached image. By default, these images generate attachment pages with no pretty permalink structure. This isn’t very useful for anyone, including search engines.
This plugin takes all of these unattached images and safely redirects them using a 301 redirect to your site’s home page. If you’re using WordPress multisite, it redirects to the current site’s home page. There are no options or settings, just install, activate, and enjoy better SEO and less useless pages on your website!

Redirect Unattached Images

Redirect attachment pages for all unattached images to the current site's home page.

Remote Images Grabber vs Redirect Unattached Images