
Description: PDF Clown is an open-source Java library for manipulating and enhancing PDF documents. It provides an API for creating, editing, and transforming PDFs programmatically.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: iTextPDF is a free, open source PDF library that allows developers to generate, modify, and process PDF documents in Java and .NET applications. It provides a broad range of PDF functionality including creating and editing PDFs, splitting and merging documents, adding images and text, as well as digital signatures support.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API