Wondershare PDFelement - All-in-one PDF editor
Lichess - The complete chess experience, play and compete in tournaments with friends others around the world.
Foxit PhantomPDF - Edit PDF files with our feature-rich PDF Editor. Download Foxit PDF Editor to convert, sign, scan / OCR & more. A speedy PDF Editor alternative to Adobe Acrobat.
Lucas Chess - The aim is to play chess against the computer with increasing levels of difficulty and with a...
Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.
Chess.com - Play chess on Chess.