
Description: PDFsam is an open-source PDF editing software that allows users to merge, split, rotate, mix and extract pages from PDF files. It has a graphical user interface and offers basic PDF manipulation functionalities for free.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Free Combine PDF 4dots is a free, lightweight PDF tool that allows you to combine multiple PDF files into one document. It has a simple drag-and-drop interface for combining files quickly.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API