
Description: PrimoPDF is a free PDF creator that allows users to easily convert documents, spreadsheets, presentations and more to high-quality PDF files. As a lightweight PDF printer, it works by installing a virtual printer on your system.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Combine PDF is a free online tool that allows you to merge multiple PDF files into one single document. It provides an intuitive interface to add and organize files, apply page numbers or delete pages, and download or print the combined PDF.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API