Vitor Carvalho

Add functionalities for your media library:
<ul>
<li>Organize media files with categories</li>
<li>Add PDF and Document mime types support</li>
<li>Adjust JPEG quality percentage (from 0 to 100) thus increase image quality</li>
<li>Crop and resize uploaded images</li>
<li>Add more file types support (documents, spreadsheets, video, audio, flash, ZIP (packages) and more image types)</li>
<li>Support for PDF and all type of documents organization</li>
</ul>
Common Supported file extensions:
<ul>
<li>Images: jpg, jpeg, png, gif, tiff, wpmb, svg, swf (flash)</li>
<li>Documents: pdf, doc, docx, wri, rtf, xls, xlsx, ppt, pptx, and all OASIS OpenDocument standard extensions</li>
<li>Text: txt, csv, plain, HTML, XML, CSS, …</li>
<li>Video: asf, wmv, avi, mov, qt, mpg, mpeg, mp4, …</li>
<li>Audio: mp3, m4a, ra, ram, wav, ogg, midi, wma, …</li>
<li>Packages: zip, rar, 7z, iso, img, tar, gz, deb, rpm, …</li>
<li>Generic: mo, po, fla, ttf, woff, bmp, ico, …</li>
</ul>
Just install this plugin and adjust to your needs.
<h4>Provided Custom Hooks</h4>
This plugin provides 2 custom filters:
1) Change labels and other arguments passed to register_taxonomy function: 
 add_filter( ‘media_category_args’, ‘my_media_category_args’ );
2) Hooks inside the category postbox HTML used to edit individual file information: 
 add_filter( ‘media_category_html’, ‘my_media_category_html’ );
The use of these hooks are recommended, thus, if the plugin gets deactivated, those hooks will not be called anymore and then you get things consistent and clean.
Do you want to translate it to your language? Just reply to the «Translations» topic in the forum.

Media Features

Adds category organization, file type filter/browser, uploaded image resize, crop and JPEG quality controllers.

Geoff Mulligan

Great Feature Toggle is a lightweight feature toggle plugin for WordPress that allows administrators to quickly enable or disable site functionality from a single admin panel.
Highlights 
* Simple Contact Form shortcode: built-in CAPTCHA and sane validation. 
* SEO Meta: set site title/description (lightweight, theme-agnostic). 
* Custom Login Logo: for branded admin/login views. 
* Custom Mail-From: set name/address (including envelope) for outgoing emails. 
* Disable Comments: site-wide for posts/media (fully reversible). 
* Force Login: limit pages with allowlist of public paths (e.g., /privacy-policy, /contact). 
* Hide Login/Account Nav Links 
* Hide Admin Screen Options & Help Tabs 
* Hide Menu Items: a limit menu for logged out users. 
* Shortcodes: <code>[grftg_message]</code> to output a message; <code>[grftg_reading_time]</code> to show estimated reading time. 
* Built to WordPress coding standards and security best-practices (nonces, capabilities, escaping/sanitization).
Key Features: 
* Performance-optimized compilation system 
* Categorized feature organization 
* Real-time admin interface 
* Robust error handling 
* Translation ready
<h3>WordPress Feature Toggles</h3>
Great Feature Toggle adds simple feature toggles so you can enable or disable WordPress features without modifying code.
<h3>Feature Flag Plugin</h3>
Great Feature Toggle acts as a feature flag plugin for WordPress administrators who want to enable or disable functionality without modifying code.

Great Feature Toggle – Feature Flags for WordPress

Great Feature Toggle is a WordPress feature toggle and feature flag plugin that lets administrators enable or disable WordPress features such as conta …

Media Features vs Great Feature Toggle – Feature Flags for WordPress