At the top of the Preview are several tabs. You can switch between them to see
different types of content information.
iPhones display just the icons whilst iPads display the full description.
Tip: The
Preview and History tabs are for files only, not folders.
Preview: Displays a file preview that you can scroll through and zoom in and out on. You
can also play video previews.
Properties: Displays file or folder properties.
History: Displays details on all versions of the file. Tap 
to see further info.
Comments: Displays all comments made about a file or folder. Add your own comment by
typing them in and tapping Post.
Maps: Displays the map location for files with geographic information properties.
Tip: Tap on a file preview to view it in full screen mode. Tap it again and select
Done to return to normal view.