Adobe Acrobat 7 Professional - Manual (Page 619)

About preflight alerts
For each component of a profile, you specify how you want Preflight to handle
mismatches during the inspection. You can select from the pop-up menu in the Edit
Preflight dialog box, or cycle through the check box to set the type of alert. The icon for
the alert appears next to the inspected object in the Preflight dialog box when the Results
button is clicked.
Preflight alerts A. Error B. Warning C. Info D. Inactive
●
Error generates an error message for this rule (or any rules in this category). Choose this
option for mismatches that must be corrected before the PDF document can continue to
the next stage in the workflow.
●
Warning generates a warning message for this rule (or any rules in this category). Choose
this option for mismatches that you want to know about and may need to correct before
final output.
●
Info generates a simple note for this rule (or any rules in this category). Choose this option
for mismatches that you want to know about but do not need to correct before final output.
●
Inactive never generates an alert message for this rule (or any rules in this category).
Choose this option for mismatches that will not affect the output quality of the
PDF document. You must change the state from Inactive to any other state to make the
text boxes available.