how to show picture or pages in middle screen

hey everyone,
I want to make a horror game like(P.T)
when player interact with Object,the picture(Object) will magnify show up in screen.
Anyone can tell me how to do that
Last but not least,thank you for answer!!

hi i have some thing like this in my game;

if u want to show a 2d image u have to Create a UI Image place in the middle of the screen and then
dissActive its Object;
then when the player trigger with some object u have to create a function witch send a Sprite for this image and change its Sprite and Active the object of it ;

for 3d model u can do the same but u can create a position in fron of camera and send a small 3d model of your object to that position that will end up with that object in the middle of the screen;