A Google a Day - Online trivia game where you use Google's search to answer questions as fast as you can.
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.
QuizUp - QuizUp gives you the opportunity to test your trivia skills against friends and strangers throughout the world.
Sumatra PDF - Sumatra PDF is a slim PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI viewer for Windows.
Trivia Crack Kingdoms - The amazing quiz game that lets you test your knowledge and challenge your friends to see who is the smartest. Developed by Etermax
Wondershare PDFelement - All-in-one PDF editor