
Description: UnityPDF is an open-source PDF viewer and toolkit for manipulating PDF documents. It allows for PDF creation, editing, rendering, and conversion using a plugin-based architecture.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Aiseesoft PDF Merger is a PDF merging software that allows users to combine multiple PDF files into a single document. It has a simple drag-and-drop interface for easy file merging. The software also allows page reordering, page deletion, and rotation during the merging process.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API