Hi and welcome to Geeks
Adobe Acrobat is used to create and modify PDF files (P
ormat files); PDF is a universal document extension. You don't need Adobe Acrobat to simply view PDF files; for that purpose, you only need Adobe Reader
, which is free.
Acrobat won't really help with scanning. Usually, when you scan a file and save it to your computer, you save it as some type of picture file (usually a JPEG). Acrobat does not manage JPEG files and will be of no use to you in that situation.
I've never used Rack2-Filer V5.0, but from what I found online, it seems pretty useless. Newer versions of Windows are sufficient in managing your scanned files; you don't need specialized software to help you with this. Companies include their software to make you think their product is more valuable, but in reality you don't need it at all.
Newer peripherals like printers and scanners come with USB cables that plug into your computer; they are very easy to setup and install. From there, you will be able to scan using the scanner itself (reading the instruction manual is wonderful) and save the scanned-in files to your computer through Windows. Windows will also let you tag photos to organize them by keyword, date, etc.
Hope that helps! Let me know if there's anything else I can do to assist you.