Installation of Zend Framework is only a Composer command away:
$ composer require zendframework/zendframework
This will install all 61 packages required in composer.json. Alternately, all Zend Framework packages can be installed individually; for instance, if you need only the MVC package, you can install with the following command:
$ composer require zendframework/zend-mvc
A list of all the packages can be found in the documentation page.
If you are looking for a professional solution with monitoring and root-cause analysis, job queues, code tracing, caching, etc., you can download the 30-day trial, free edition of Zend Server.