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. * u" ~7 g6 C3 W. b/ a* p7 d( Z 7 J3 i$ ~0 D+ a! t) C" cI used online software but they all have watermark 0 \7 J8 ^, }5 r- [# x( P . |( _( X# q: V" |thanks