This is Adobe Reader, the most famous PDF file reader.
This version presents a new user interface that allows you view more parts of the document on screen.
Adobe Reader does not allow us to make changes because it is an application that is used only to open, see, look for, sign, verify and print PDF files.
Program accessibility and speed has also been improved, by using the GPU of many accelerated graphics cards. The most notable aspect of this new version is that its interface has changed compared to previous versions.