In this tutorial i will teach u how to make Paper fold in your graphic.

Step 1 :- Open a canvas of any size u like , we are making tutorial on Canvas of 200X300 Transparent.



Step 2:- Make a Square with Rectangle tool of color : #eee8cf



Step 3 :- Take line tool and make one line in above right corner



Step 4 :- Make both layer Merge Visible




Step 5 :- Expand the size of Canvas little bit , and then select the Eraser tool and remove the Outer Lines




Step 6 :- Then take Magic Wand tool and select the corner as shown in figure.



Step 7 :- CTRL+X ( Cut ) the corner and CTRL+V ( Paste ) it , it will make new Layer.
Then go to Edit -> Transform -> Rotate
Rotate the Corner so that the Straight side matched exact with the Coner which we cut before. and then go to Blending Option of New Layer and give it a Shadow.





Step 8 :- Give main canvas a shadow too so that it looks good.



The Final Product :-