
Description: Nitro PDF Pro is a premium PDF editor that allows you to create, edit, convert, sign, and secure PDF files. It has an intuitive interface and advanced editing tools for annotating, rearranging pages, adding form fields, reviewing documents and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: PDF Signer is a software tool that allows users to electronically sign PDF documents. It has features to add text, images, and digital signatures to PDFs.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API