This Helper I use to store and resize Images (external or not) – it uses GD so make sure to have it, of course this is just an example, so you must change the structure of paths/URLs to your needs.
In a recent Project i have to deal with some external content which has a good quality when it comes to the content itself, but unfortunately the html markup is rather poor, so i decided to include tidy to clean it up, and out of convenience make it in a view helper.
sub-view in zend framework, use a view in a view – How to include one view in to another view in zend framework.
Disable view and layout for a controller (you can also place it in any other location, a action for example)