Get Portable Cool PDF Reader Free. Itis a tool that enables you to view PDF files easily without the use of any complex tools. You can copy the tool to a flash drive or any other external device to run on any system. The interface is very user-friendly and simple. You can quickly view a PDF document by using the drag and drop method. The app will allow you to rotate pages, zoom in and out, view documents in full-screen mode, and even print a document.