PDF Shaper - a collection of PDF tools and utilities to modify and optimize your PDF documents and its content

Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.

PDFsam - PDFsam Basic, a free, open source, multi-platform software designed to split, merge, extract pages, mix and rotate PDF files

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.

Wondershare PDFelement - All-in-one PDF editor

Pages - Pages for Mac is a word processor that offers tools needed to create documents.