These are free resources and defences that all computers need to operate safely and effectively in our current environment.
Free program from Adobe for reading pdf files. You cannot far on the web without needing Adobe Acrobat. It is a large download - so you will need a broadband connection to download it.
A brilliant little programme which converts any files you can send to your printer into a pdf files - embedding their images and retaining their format. These pdf files can be read by any Adobe Acrobat reader such as the one you can download above. You cannot edit the PDF files created.