Use definite when you mean precise, clearly decided and specific, or having distinct or certain limits.
Use definitive when you mean conclusive or authoritative and exhaustive.
Yes:
There’s been a definite increase in the number of support calls.
There’s a definite link between temperature and pressure.
Arrange a definite date for the interview.
The ISO standard is the definitive guideline for your work.
This manual is your definitive guide to using DemoSoft.