InPreflight 3 User Guide
Preflight Active InDesign Document
Select the desired preflight preset in InPreflight toolbar:
Click Preflight button in the main window to preflight the active InDesign document using the selected preflight preset. You can also use ⌘R shortcut for this operation.
Note: InPreflight cannot preflight documents that have never been saved with the current InDesign version, such as Untitled or [Converted] documents.