  We propose the concept of Diederich--Forn{\ae}ss and Steinness indices on
compact pseudoconvex CR manifolds of hypersurface type in terms of the D'Angelo
1-form. When the CR manifold bounds a domain in a complex manifold, under
certain additional non-degeneracy condition, those indices are shown to
coincide with the original Diederich--Forn{\ae}ss and Steinness indices of the
domain, and CR invariance of the original indices follows.
