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Database Subject Enrichment

Brothers Thomas and John Knoll developed Photoshop in 1987. Thomas Knoll, then a Ph.D. student at
the University of Michigan, began writing a program on his Macintosh Plus to display grayscale images on
a monochrome display. The program caught the attention of his brother John, a visual effect artist, who
encouraged Thomas to turn it into a full-fledged image editor. The two brothers worked together on the
application until, in 1988, they sold the distribution license to Adobe Systems Incorporated. On March
31, 1995, Adobe purchased the rights to Photoshop from Thomas and John Knoll for $34.5 million.

Post-Processing  
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 Adobe Photoshop is a powerful graphics editing software that lets you create, edit, optimise,
and organise digital images.

 The Application bar, present at the top of the Photoshop Workspace, provides menus, such as
File, Edit, Image, and Layer to perform various tasks in Photoshop.

 Panels, present on the right side of the Photoshop Workspace, display various controls to view
and specify various properties for an image.

 The Tools Panel contains a collection of tools that enables you to create, edit, and enhance
images.

 The Marquee tools are used to make rectangular, elliptical, single row, and single column
selections in an image.

 The Lasso tools are used to make freehand, polygonal, or magnetic selections in an image.
 The Move tool is used to move a selected part of an image from one location in the file to
another.

 The Crop tool is used to remove unwanted parts from an image.

 The Shape tools are used to draw geometrical shapes on an image.

 The Custom Shape tool is used to draw customized shapes such as stars, flowers, leaves, and
arrows.

 The Brush tool is used to paint strokes on an image.
 The Brush tool creates soft-edged strokes of a colour, while the Pencil tool creates hard-edged
lines.

 A Gradient tool is used to fill selected areas with a blend of multiple colours.

 The Paint Bucket tool is used to fill similarly coloured adjacent areas with the foreground
colour.

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