Preflight Setup for Document Error Checking
Preflight (Green Dot at Bottom of Document)
Click on the pulldown menu on left bring up pre-flight pannel
Preflight flyout > define profiles
Check off what you want the program to tell you is going wrong should there be a problem (overset text, missing fonts etc)
Create your own profile to give you warnings telling you what is wrong with your documents.
You can load, import and embed profiles for documents