PICSHADOW is a simple online image processing service. The function it provides is quite single, but also very practical, that is, to add shadow effects to pictures. This effect is easily achieved in PS, but for ordinary people, regardless of whether they are familiar with PS or not, it is troublesome to spend half a minute to open PS just to add a shadow effect to a picture. PICSHADOW solves this problem well, and the setting of shadow parameters is the same as in PS, which can completely replace PS to complete the task of adding shadow effects.