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Under certain conditions, we construct a countable Markov partition for pointwise hyperbolic diffeomorphism 
$f:M\rightarrow M$ on an open invariant subset 
$O\subset M$, which allows the Lyapunov exponents to be zero. From this partition, we define a symbolic extension that is finite-to-one and onto a subset of O that carries the same finite f-invariant measures as O. Our method relies upon shadowing theory of a recurrent-pointwise-pseudo-orbit that we introduce. As a canonical application, we estimate the number of closed orbits for f.
