A PDF insight is really a workflow shortcut
Most teams do not want an 'insight' for its own sake. They want a faster path to the fact, issue, or answer that helps them move a case, review, or decision forward. That is why PDF insight tools should be judged by what happens after the answer appears.
The evidence still decides whether the insight is useful
An answer is only useful if someone can check it quickly. In legal, finance, compliance, and operations workflows, the source evidence often matters as much as the answer itself. If the user cannot reach the proof immediately, the insight has limited value.
The strongest products reduce both reading and verification time
A good PDF insight workflow should reduce the time spent finding the answer and the time spent confirming it. That is what turns AI from a clever search layer into a real productivity tool.