1. A computer-implemented method for instructing a user on taking a photograph for biometric verification of an identification document, the method comprising: receiving, by a processor, a first photograph of the identification document; extracting, from the first photograph, by the processor, a first human face; displaying, via a user interface associated with a user device, the first human face and a first region border associated with the first human face, the first human face having a predetermined opacity level and the first region border enclosing the first human face; activating a camera associated with the user device; detecting, by the processor, a second human face in a video stream captured by the camera; displaying, via the user interface, the second human face and a second region border associated with the second human face, the second region border enclosing the second human face; instructing the user to superimpose the second human face on the first human face so that the second region border substantially coincides with the first region border; determining, by the processor, that the first region border substantially coincides with the second region border; and based on the determination, capturing a second photograph of the second human face using the camera.