Any windows application is easily learnt if fits with the windows format ie. menus in certain positions, same short cut keys, etc. This application does not flow like a windows app, making it clunky and painful to use. Not impressed and currently looking for an alternative.
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.
OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.
Wondershare PDFelement - All-in-one PDF editor
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
Foxit Reader - Foxit Reader is a free and light-weight multi-platform PDF document viewer.
Laverna - Laverna is a JavaScript note taking application with Markdown editor and encryption support.