Abstract <p>Quantum entanglement is the key phenomena of quantum mechanics, with huge impact on quantum technologies such as quantum cryptography. Here we study local postselective transformations applied to a pre-shared entangled state by the remote participants. We discuss the effect of their classical communication and the structure of the applied transformations. We also discuss the role of state-dependent quantum uncertainty and how it is changed under postselective transformations, with application in quantum cryptography.</p>