
Description: VivPDF Editor is a free PDF editing software that allows users to view, edit, create, convert, annotate, protect, sign, and optimize PDF documents. It has an intuitive interface and various tools for common PDF tasks.
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