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.
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
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.
Superdense - No text, just icons.
Wondershare PDFelement - All-in-one PDF editor
Bookmark OS - Bookmark OS is like Mac or Windows optimized for bookmarks.