Dozuki - Dozuki is a web-based tool for creating and distributing step-by-step documentation.
Wondershare PDFelement - All-in-one PDF editor
Tulip Work Instructions - Use Tulip work instructions apps to guide operators with easy-to-follow, paperless instructions so they stay productive, engaged, and accurate.
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.
JEM Digital Work Instruction Platform - Job Element Monitor (JEM) is an easy-to-use, software solution to configure digital work instructions, enforce process control and error proof operations.
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.