I don't know why it has been configured that way but the
simple fact is you don't have an option.
I haven't tested but I see no reason why you cannot reinstall
RoboPDF after uninstalling RH6 if you decide not to upgrade.
Also untested but you should be able to install RH6 with
Acrobat Elements, then use RH5 to create a Word document and PDF it
from there. Given your light use, that should be a reasonable
compromise.
If you open any of your existing project in RH6, make sure
you have backups first. You cannot open a project in RH6 and then
X5 using the XPJ file. Projects can be retrieved by other means but
you risk losing some functionality.
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