Asoftech Automation records all operation of mouse and keystrokes and saves them as macros. It can play back the recorded macros to automate recorded tasks any number of times.It is very easy to use and doesn't require any programming experience.
Mini CADViewer is a compactfree CAD viewer.It is designed to be easy to use, even for those with no prior CAD experience. It allows you to move and zoom in/out drawingview at will. It supports DWG, DXF formats.
SimplePDF is a free and open-source PDF viewer. With its only 2 MB it installs and loads within seconds. It displays PDF and multiple other eBook formats. The program comes in many languages and is very easy to install.