
Description: Kdan PDF Reader is a free PDF viewer and editor for Windows, Mac and Linux. It allows you to view, annotate, and collaborate on PDF documents. Key features include tabbed viewing, annotation tools, form filling, encryption/decryption, and cloud storage integration.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: FlexiPDF is an open-source PDF library for .NET and Java that allows creating, editing, splitting, merging and manipulating PDF documents programmatically. It provides a simple API for common PDF tasks.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API