Docman - one of the best extensions for Joomla, which allows you to organize the management of file downloads and documents. You can easily set up file access control for users. You can share or allow users to manage their files. Component features: convenient addition of documents to the site, creation of categories of files with any level of attachment, front-end management, the ability to organize document sharing, setting access control, the ability to batch file downloads, the presence of built-in audio and video players and many other useful functions.

RSSEO! v1.21.6 - new release of one of the leading seo of extensions for Joomla! 3. A useful set of necessary tools will facilitate optimization of your website for all popular search robots. All tools are switched on in one packet of a component.
From basic functions it is possible to select verifiability of copyright, comparison of characteristics of the project with the websites of competitors, tracking of positions in delivery, scanning of all pages, the advanced manager of meta data, automatic adding of tags to images, editing the Robots.txt file and generation of a site map.

Yendif Video Share Pro v1.2.8 is one of the best components of the functional gallery. This is a great solution for organizing video sharing. Features of this Joomla extension: convenient video player with support for HTML5 Player and Flash technology, display on mobile devices, a large number of video player settings, creation using the video gallery component with the ability to create categories and thumbnails, the ability to add comments and ratings, support for many formats, two themes clearance. You can also note support for video streaming. 

JCH Optimize Pro 6.0.1 - the last release of an irreplaceable plug-in for Joomla of the intended for optimization and considerable acceleration of any website on cms Joomla! 3. It can raise line items of your website much more. Using this extension of Joomla you can do the combining CSS and javascript of files in one, integrate the selected pictures in sprites, add effect of the smooth loading when scrolling the page (with a possibility of an exception of necessary elements). Also there is a function of automatic compact of all images.

Aimy Speed Optimization PRO is a professional version of one of the best extensions to accelerate and optimize all Joomla pages! site. The extension optimizes image loading, HTML, JavaScript, CSS, supports compression and caching. Features You can use the default settings or manual settings. Optimization of image loading (lazy or delayed loading, automatic setting of image attributes (height and width), minimization of CSS, asynchronous loading of JavaScript. This tool will significantly speed up your site.

iCagenda Pro v3.7.13 - a new version of the popular calendar and event management component for sites on cms Joomla! 3.x. Using this component you can easily organize any events and activities on the site. Key features of the Pro version of the component. By default, 2 themes are predefined, setting an event period, having a search filter, the ability to export a list of registrations, sending messages for each event, setting up an individual registration form, inserting Google maps, adding custom fields, and much more. The installation package includes the component itself, the calendar module, iC Library plugin, Privacy plugin and autologin.

Accordion Menu 9.3.15 - is an easily customizable, convenient and easily integrable solution for building a custom joomla menu. This joomla 3 module allows you to do full control over menu levels, color schemes, animation effects, and many other functions. The extension has five unique themes with its own settings and predefined skins that can be configured without any HTML or CSS knowledge.
Accordion Menu supports an unlimited number of deep menu levels and more than 10 third-party extensions.