MMDeveloper

A wordpress plugin that allows you to add categories to attachments. Similar to https://wordpress.org/plugins/map-categories-to-pages/, but just allows you to set the attachment’s category.
Map Categories to Attachment displays the category box on the “Edit Attachment” page. By default, Every attachment in wordpress is mapped to the default category but this plugin gives the option to select categories for an attachment.
Built by The Marketing Mix Perth: http://www.marketingmix.com.au

Map Categories To Attachment

Ben Huson

The Attachment Taxonomy Support provides better support for media and attachments in WordPress versions before WordPress 3.5+.
In versions of WordPress subsequent to 3.5 it just registers ‘attachment_category’ and ‘attachment_tag’ taxonomies.

Attachment Taxonomy Support

Improved taxonomy support for media and attachments in versions of WordPress prior to 3.5.

Map Categories To Attachment vs Attachment Taxonomy Support