If you use Drupal or WordPress and you have a virtual Server with SSH Login you should set up a daily Backup Script to have a Snapshot of your Blogs if Hackers insert SQL Code Injections or hack PHP Sites. Cause you cant NEVER know every EXPLOIT of every used Plugin (here less plugins is more!)
Of course you can daily or hourly RESTORE AUTOMATIC by CRON your Blogs by OVERWRITE bad inserted STUFF!
Article comming soon !! .. sorry have current not enough time..
If you have a Office and you have to archive Documents and Prints over Years you should have heard that there is a special PDF Type called PDF/A which is set as default Archiving PDF File Type for decades.
To use it you can use the Linux Print Server called CUPS to translate all digital Prints to PDF/A. This free Software Printer is known on all Linux Releases, and he can listen on USB and Network Interfaces on Documents. Also you can use Network Printers/Scanners like the Brother MFC-Series to Scan Documents and later to print them virtual as PDF/A (PDP Archive File)
The way the file is going on a Office:
Office PC -> Openoffice Writer-> Print to Cups->Linux OS -> Network -> Linux Office Server -> Linux OS -> CUPS -> CUPS Converter to PDF/A (Postscript Driver)-> Output Directory (perhaps Windows, FTP, Cloud Share)