bottom guide मीनिंग इन हिंदी

Top and bottom guiding
Bottom guide bar
Drag your top and bottom guide lines so that they snap to the top and bottom of your image ( as shows in fig 3a & b )
Using the select tool select the region between the top and middle guide ( note if you needed to move your image down you would need to select the region between the middle and bottom guides ) and move the selection ( select > transform selection ] to the opposite side of the middle guide