I took some photo at home to be used on china visa app, wondering how do I crop to the size so it prints on 4x 6 like a ID photo. # G7 I8 w% R8 [4 ^6 E 6 I8 G: M8 |- G3 ^8 b5 j* MI used online software but they all have watermark % K; v$ O) N; _$ b1 m* V0 j ) |( o$ ^. g/ W$ W; j# ^; y4 ~thanks