Aelora

Adds a list of any attached files to the end of posts and pages.
Attached files are displayed with a link so that they can be easily downloaded, along with a 16×16 icon identifying the type of file and file size.
Thanks to <a href="http://www.famfamfam.com/" rel="nofollow ugc">Mark James</a> for the outstanding silk icon set, and for licensing it under the CC license.

rAttach

Adds an attached files list to the end of posts and pages

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

rAttach vs Map Categories To Attachment