Didapages

A free program for Windows, by Carlos Guedes

A free, online encyclopedia that contains information about famous people, places, and things

Discover and download millions of academic papers, ebooks, and magazines through a powerful searchable catalog

Windows app designed to allow users to edit and read existing PDF files

Edit, create and save PDF documents with this program

Allows users to view PDF file formats in Windows

Official extension that seamlessly adds one-click PDF and XPS document saving and email integration