William P. Davis

This plugin allows you to duplicate images you have in the media library and attach them to a new post, rather than having to create a new copy of the image and upload it to WordPress again.
It works by copying the post and its metadata. It does not actually copy the image. Any changes you make to the new copy of the attachment — updating the caption or cropping, for example, will only be applied to the new attachment, not to the original.
This is useful if you query posts for its attachments to display photos, or if you make use of galleries and have old images you might want to include, among other things.
To use, go to the Library tab in a post. You should see an ‘Attach’ link.

BDN Duplicate Images

Allows you to duplicate images in the media library and attach them to the current post.

Getty Images

Getty Images is among the world’s leading creators and distributors of award-winning still imagery, video, music and multimedia products, as well as other forms of premium digital content, available through its trusted house of brands, including iStockphoto© and Thinkstock©. Its best-in-class photographers and imagery help customers produce inspiring work which appears every day in the world’s most influential newspapers, magazines, advertising campaigns, films, television programs, books and online media.
The Getty Images WordPress plugin integrates seamlessly with your WordPress 3.5+ Media Manager and lets you create posts with photos and illustrations from Getty Images – without ever leaving your WordPress site.
With 2.0, users can now access over 50 million embeddable images for editorial use on their WordPress.org site, for free.
New users:
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<li>Access to over 50 million embeddable images, available for editorial use and at no cost to you.</li>
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Getty Images customers can access and license imagery:
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Search millions of photos, vectors and illustrations, customized to your Getty Images account.
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Download and preview comp images before you post.
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Download, insert and publish any size image using your existing agreement with Getty Images.
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Licensed images are saved to your Media Library for future use.
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</ul>
Using the plugin once installed
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Go to a new or existing post.
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Select Getty Images above the composition area, or access Getty Images from the Media tab.
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For users who wish to embed images in their blog: Select Access Embeddable Images. Start searching for images that fit your needs. Select Embed into Post. Publish!
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For customers: Select the Getty Images Customer option. Login your Getty Images account to download images for preview or publication, and to access your content and active agreements. Start searching, downloading and using!
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Search and use Getty Images photos in your posts without ever leaving WordPress.

BDN Duplicate Images vs Getty Images