Administrators of your dashboard have the ability to assign and remove users, as well as make changes to your plan by upgrading it, purchasing more licenses, or cancelling it.
It's very important that when you assign a new administrator, you are doing so with the intention to give them these liberties.
*If you mean to simply assign a user to a license, please see this page.
To add an administrator:
Log into your dashboard at https://pdf2xl.com/app/#/auth/login
Go to the "Manage Roles" section
Click the "GRANT ADMIN ACCESS" button at the top right corner of the screen
Enter the email address of the person you wish to assign
An email will be sent to that user with an invitation link.
They will have only 24 hours to click that link before it expires, after which time, you will have to delete their pending status and re-assign them.