WHAT IS PHOTOSHOP?
Photoshop was created in 1988 by
Thomas and John Knoll. Since then, it has become the de facto industry standard in raster graphics
editing, such that the word "photoshop" has become a verb as in
"to photoshop an image," "photoshopping," and
"photoshop contest," etc. It can edit and compose raster
images in multiple layers and supports masks, alpha compositingand several color
models including RGB, CMYK, Lab
color space (with capital L), spot
color and duotone. Photoshop has vast support for graphic file formats but also uses its own
PSD
and PSB
file formats which support all the aforementioned features. In addition
to raster graphics, it has limited abilities to edit or render text, vector
graphics (especially through clipping
path), 3D
graphics and video. Photoshop's featureset can be expanded by Photoshop
plug-ins, programs developed and distributed
independently of Photoshop that can run inside it and offer new or enhanced
features.