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.
Flaming Text - "Create your amazing logo from 100s of awesome designs".
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.
Looka - Make a logo you’ll love with Looka Logo Maker.
Wondershare PDFelement - All-in-one PDF editor
Sothink Logo Maker - Professional logo design software offers Free logo templates and logo elements to let you create own logo, app logo, logo for android app, mobile games in minutes.