
Description: PDF Panda is a free PDF editor that allows you to view, create, sign, comment on and edit PDF documents. Its key features include annotating, merging and splitting PDFs, converting documents to and from PDFs, encrypting/decrypting files, e-signing documents and OCR.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Sejda is an open source PDF desktop software for Windows, Mac and Linux that allows users to manipulate PDF files. It offers features like merging PDFs, splitting PDFs, compressing PDFs, adding headers/footers, reordering pages, encrypting/decrypting files, adding watermarks and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API