Can I show someone my PageDip if they don't have an account?

Yes. Unlike many other content tools, you do not need a PageDip editor account in order to simply read a PageDip. Who can access your PageDip content is completely under your control. A PageDip can be published so that the URL is public and open to everyone. It can also be accessed only by those in a particular organization through Single Sign On (SSO) authentication.