Put a piece of paper on top of the id card to identify the identity card. Start with a piece of A4 paper. Then put the edge of the paper on top of the words on the front of the id card. We can see that the left side of the word is written on the same horizontal line. However, a fake id card can't do the trick. Therefore, we can tell the identity card is true or false according to this. https://www.idscard.com/