
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: MarginNote is a PDF and EPUB reader designed for students, teachers, and academics to facilitate active reading, note-taking, highlighting, and annotation. It helps organize ideas, study content deeply, and gain insights.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API