Knotable - Cut the noise out of busy email threads
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.
Indigrid - Plain text outliner with side-by-side views.
Wondershare PDFelement - All-in-one PDF editor
Alternote - OS X note-taking app for Evernote.
Pages - Pages for Mac is a word processor that offers tools needed to create documents.