Joomla Info Sharing Website

I need a Joomla website to share information, primarily PDFs and images. The site will serve a private member group of about 20 users.

Key Requirements:
- Upload and search PDFs and images
- Member access control for a private group
- Drag-and-drop upload functionality
- Automatic categorization of uploads
- Advanced search capabilities: keyword search within files and tag-based search

Ideal Skills and Experience:
- Proficiency in Joomla development
- Experience with file upload and search functionalities
- Familiarity with user access control
- Strong understanding of categorization and search algorithms