On occasion it is hard to elucidate on a product any further than its name, which is exactly the case with Free PDF Reader. It is free, and it is a PDF reader - so if that is what you are looking for then you are in the right place. However, it is hard to recommend when
Doing its thing
Free PDF Reader allows you to open and view any PDF files you have downloaded with ease. It offers a good range of basic options, such as seeing single or multiple pages at a time, navigating from a sidebar or dragging the page, and the ability to copy and convert text for editing in another program.
All of these options can be accessed either using the standard windows taskbar tabs, or handily representative icons. Oddly though, these icons look slightly archaic, feeling like a holdover from a pre-XP incarnation of Windows.
Other things doing its thing better
Despite it working there are some issues that dog Free PDF Reader - perhaps the greatest of which is the existence of Adobe Reader. While the leading software for PDF reading may look a little more intimidating and business like, it proves far better in every respect while also offering more versatility. And yes, it too is free. That said - and I have no way to test this - I suspect that on older machines Free PDF Reader may be less resource intensive than the most recent version of Adobe's reader.
One other, more annoying problem, is Free PDF Reader's insistence on promoting its other products. The programs it pushes are related (such as one which converts PDFs into Word documents), but placing webpage shortcuts on your desktop to promote them is just invasive.
Honestly? Free PDF Reader is just fine. There is very little to it, but it works, and if the Adobe option is too resource heavy for your machine this is a reasonable alternative.