That's an old and outdated page. 1Password has moved to a subscription model, thus storing the encrypted database themselves. The old "offline" option is still around, but it has been deemphasized, for one because they stopped implementing features supporting it (like an offline HTML interface for opvault, or sync with other clouds besides Dropbox). Even more upsetting is that the standalone version is now much more expensive than it was. They did that to increase the attractiveness of their subscriptions of course. And the writing is on the wall really.
