
Description: Xodo is a free PDF reader and annotator for Windows, Linux, Android, iOS and web browsers. It allows you to view, edit, sign, and collaborate on PDF documents. Xodo is lightweight, fast, and has an intuitive, user-friendly interface.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Hyphen is an open-source word processor and page layout tool for Linux. It has basic word processing features like text formatting, spell check, tables, and images. Useful for simple documents.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API