Great app for managing, editing, and reading PDF files. I like it because it is very user friendly and the app recognizes the platform you are using. It creates a clean, crisp image and it comes across looking perfect. It is a very reliable app and is very user friendly. This app adds to a user’s speed when working with a pdf which makes it my favorite. It allows annotating which I also find very handy in my business. It is a must have application tool.