Nitro PDF Reader is a PDF viewer, which in addition to basic functions allows you to add comments to text, annotations or markings when working on a document in a group. The program has an intuitive interface modelled on Microsoft Office. Nitro PDF Reader supports more than 300 different formats that can be imported into a file and converted into PDF.

Adding materials can be done by drag-and-drop, or in a standard way. Other features include the ability to add signatures and signatures, download images and text from PDF documents, and the exact location of the annotation in the file. What is more, you can respond to the comments in the text.

You can change font styles, colour and size, highlighting, and text to suit the size of your document. Nitro PDF Reader 2.0 is the first version of the program considered stable by developers.