To remove an object from your photo using Content-Aware Fill, create a duplicate of the Background layer by dragging it onto the New Layer icon.
Next, select the object you would like to remove using any Selection Tool. In this example we use the Lasso Tool to make a rough selection around the dog in the image. Once selected, go to ‘Edit- Fill’ and choose ‘Content-Aware’ from the drop-down menu.
Thats it! whatever you selected should be gone! If the Tool doesn’t do a perfect job, make new selection and try it again – often times it will do better the second time.