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. 6 K7 ^2 t, L8 i: D) g2 t% |3 y 5 r- L7 K8 ]( C, e2 F j& xI used online software but they all have watermark & R9 A+ y3 R$ C5 U, } # d! m3 [) u' H0 H) G2 }$ f. cthanks