
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: ZetPDF is an easy-to-use PDF editor that allows you to view, create, edit, convert, annotate, protect, and sign PDF documents. It has a simple, intuitive interface making it easy for anyone to work with PDFs.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API