TinyMCE - TinyMCE is a content editor that functions as a plug-in for Wordpress websites.
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.
Froala Editor V2 - A beautiful modern WYSIWYG HTML text editor
Sumatra PDF - Sumatra PDF is a slim PDF/DjVu/EPUB/XPS/CHM/CBR/CBZ/MOBI viewer for Windows.
Edtr.io - Intuitive WYSIWYG web editor, open source & fully adaptable.
Wondershare PDFelement - All-in-one PDF editor