SocialEngine - Socialengine PHP: Elevating Your Online Community Experience.
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
phpFox - phpFox is a powerful social network platform for niche communities
Sumatra PDF - Sumatra PDF is a slim PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI viewer for Windows.
EasySocial - Social Network For Joomla to grow your communities with the least time.
Wondershare PDFelement - All-in-one PDF editor