What is a Smart Object?

Answer 1

A smart object is used for resizing layers or "objects". So when you resize an image to a smaller dimension, then resize it back to its original dimension, the resized photo won't be as high quality as the original.

So smart objects turn layers into an "object" that doesn't lose it's quality when it get's resized.

when apply filters like sharpening in smart objects its not destructive, you can always show or hide filter pressing eye icon next to name of filter, or change blending mode by double clicking two arrows on the end of filter name, even change amount of sharpening by double clicking on its name. This works for any filter not only for sharpening

Answer 2

Photoshop CS2 has a special layer known as Smart Object Layer.

- Smart objects can have pixel-based content or vector-based content.

- Smart objects allow working with multiple copies of a single object.

- All multiple copies will be updated when one object is updated.

- Layer styles and adjustment of layers can be applied to the individual smart objects, without affecting all copies.

- All pixel-based smart objects will also remember the original size.

- Pixel-based objects can be transformed several times without any loss.

Answer 3

we can fill color in a partular part of a object