Adobe Photoshop is a predominant photo editing software developed in 1987 by brothers Thomas and John Knoll. They sold the distribution license to Adobe Systems in 1988. Photoshop provides tools for selection, cropping, and manipulation of images like the pen, shape, and eraser tools. It has become a verb used to describe images edited in Photoshop and is widely used in print media before publication to enhance images.

1. Adobe Photoshop
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2. What is Adobe Photoshop?
The predominant photo editing
and manipulation software on
the market

3. Who developed Adobe
Photoshop?
Photoshop was developed in 1987 by the
American brothers Thomas and John
Knoll, who sold the distribution license to
Adobe Systems Incorporated in 1988.

4. Photoshop tools.

5. Pen tool
• The pen tool creates precise paths that can be
manipulated using anchor points.
• The free form pen tool allows the user to
draw paths freehand
• With the magnetic pen tool, the drawn path
attaches closely to outlines of objects in an
image.

6. Shape tool
• Photoshop provides an array of shape
tools including rectangles, rounded
rectangles, ellipses, polygons and lines.
• These shapes can be manipulated by the
pen tool, direct selection tool etc. to make
vector graphics.

7. Measuring and navigation
• The eyedropper tool selects a color from
an area of the image that is clicked, and
samples it for future use.
• The hand tool navigates an image by
moving it in any direction, and the zoom
tool enlarges the part of an image that is
clicked on, allowing for a closer view.

8. Selection tools
• Selection tools are used to select all or
any part of a picture to perform cut, copy,
edit, or retouching operations.

9. Cropping
• The crop tool can be used to select a
particular area of an image and discard
the portions outside the chosen section.
• This tool assists in creating a focus point
on an image and excluding unnecessary
or excess space.
• Cropping allows enhancement of a
photo’s composition while decreasing the
file size.

10. Slicing
• Used in isolating parts of images.
• The slice tool can be used to divide an
image into different sections, and these
separate parts.
• The slice select tool allows sliced sections
of an image to be adjusted and shifted.

11. Moving
• The move tool can be used to drag the
entirety of a single layer or more if they
are selected.
• Alternatively, once an area of an image is
highlighted, the move tool can be used to
manually relocate the selected piece to
anywhere on the canvas.

12. Marquee
• The marquee tool can make selections
that are single row, single column,
rectangular and elliptical.

13. Lasso
• The lasso tool is similar to the "marquee"
tool, however, the user can make a
custom selection by drawing it freehand.

14. Magic wand
• The magic wand tool selects areas based
on pixels of similar values.
• One click will select all neighboring
pixels of similar value within a tolerance
level set by the user.

15. Eraser
• The Eraser tool erases content based on
the active layer.

16. Cultural Impact

17. • Photoshop and derivatives such as
Photoshopped (or just Shopped) have
become verbs that are sometimes used to
refer to images edited by Photoshop.

18. Magazines
• Before any type of print media is
published, whether it is a magazine,
newspaper, or even novel, it is likely the
case that Photoshop has been used to
enhance and clean up the imagery on
many if not all of the pages

19. Photoshop disasters
• For comedic effect, some websites
publish so-called Photoshop disasters, that
is, pictures that contain obvious
Photoshop mistakes. Those mistakes
range from missing limbs to overdone
photo retouching on fashion models.

20. Photoshop contest
• A Photoshop contest (or "Photoshop
contest") is an online game in which
someone posts an image, and other people
manipulate the image using a raster
graphics editor such as Photoshop.