
Description: PDF Rider is a PDF viewing, editing, and annotation software for Windows. It allows users to view, create, edit, sign, and annotate PDF documents. Some key features include tabbed PDF browsing, commenting tools, form filling, digital signatures, and optical character recognition.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Master PDF Editor is a PDF editing software that allows users to easily edit, convert, create, review, and secure PDF documents. It has a user-friendly interface and features like merging PDFs, adding text/images, filling out forms, adding signatures, reviewing documents with markup tools, password protection, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API