
Description: PDF Chain is free and open source software for combining, splitting, rotating and manipulating PDF documents. It provides a simple interface for common tasks like merging multiple PDFs, extracting pages, adding watermarks and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: PDF Nomad is a free, open source PDF editor for Windows and macOS that allows you to edit text and graphics within PDF files. It provides basic editing capabilities like inserting, deleting, rotating pages and adding images, shapes and sticky notes.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API