
Description: Pdf Viewer Plus is a free PDF viewer, editor and annotation tool. It allows you to view, edit, sign, and annotate PDF documents on Windows devices. Key features include tabbed PDF reading, editing text and images, adding signatures and comments, highlighting and underlining text.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Openlib is an open source digital library software designed for creating and managing online collections and services. It provides tools for content ingest, asset management, discovery, delivery, and engagement.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API