
Description: PDF-LIB is an open-source JavaScript PDF library for Node and the browser that allows creating, modifying, inspecting, parsing and optimizing PDF files. It provides an easy API for working with PDFs.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: PDFium is an open-source PDF viewing library developed by Google. It allows developers to add PDF viewing and manipulation capabilities to their applications. PDFium supports core PDF features like rendering, printing, form filling and annotation.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API