adobe reader 9.1 downloadingIf I want to download Adobe Reader 9.1, should I first remove the older Adobe reader?

Does a newer version automatically make the older version obsolete?
No. I updated last week & Adobe wadobe reader 9.1 downloadingill automatically remove the old version first if removing it is required.
just install the latest versioadobe reader 9.1 downloadingn, it will automatically remove the previous version.
no you can just over write it

it's now 9.4