Diminishing Newspaper

The magician opens a newspaper sheet, reads it, closes it and throws it away with his right hand. However, when he looks at his left hand the newspaper is still there, but it's been reduced to its half. The magician is surprised by it, anyway reads, closes and throws it away again. But again, in his left hand he has an even smaller newspaper. He repeats the action one more time and again in his left hand he has an even smaller one (2x2.5 inches). He tries to read, but it is difficult, then he shakes the tiny newspaper and it gets back to its full size, as it was at the beginning!!