Facebook - Connect with friends, family and other people you know. Share photos and videos, send messages and get updates.
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.
Wondershare PDFelement - All-in-one PDF editor
Mastodon - Mastodon is a decentralized, open source social network. This is just one part of the network, run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome!
Foxit Reader - Foxit Reader is a free and light-weight multi-platform PDF document viewer.