Photoshop Quick Reference Guide

7/31/2019 Photoshop Quick Reference Guide

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Quick Guide by Mr Low YF for Year 1 Computing Photoshop Lesson 1

Photoshop Quick Reference Guide

Before beginning any exercise, always UNLOCK layer. A locked layer has

many limitations

a) If you do not see “Index File” but only a lock, just double click the

lock and then click “OK” to answer the dialogue box

Then click “OK” to “New Layer”.

You can also Alt+double click for same effect without need to answer

“OK”

b) If your image has an “Index” next to it, click Image->Mode->RGB

to unlock it.

If it is still locked, follow Step a)

1. Zoom Tool or Z. Hold down Alt to reverse zoom

2. Move Tool or V. Used to move actual pixels or parts of

image or text.

Double click here to

unlock

This image has “Index” next to it so it

needs to be unlocked using Image-

>Mode->RGB




3. After making selection, can also use Ctrl+Shift on selection to

move selected area or Ctrl+Alt to copy the selected area

4. Note: To move only selection border, make sure only border

selection tools such as rectangular tool is active5. To deselect selection, click Select-> Deselect or Ctrl+D

6. To add to a selection, hold down Shift key and to subtract from a

selection, hold down Alt key

7. To invert a selection, click Select-> Inverse or Shift+Ctrl+I

8. To select similar colours and tones with clear edges and no

shadows, use Magic Wand tool (with appropriate tolerance

settings) or Quick Selection tool.

Grow (Select->Grow) is

also useful.

9. Magnetic Lasso tool is good for irregular shapes with very high

contrast. When looping back, and you see the “circle”, click to end

10. Polygonal lasso tool good for straight lines. Hold down Alt key for

temporarily using it as a normal lasso tool (for non straight edges).

When looping back, and you see the “circle”, click to end

11. To resize or rotate a selected image portion, use Edit->Free

Transform or Ctrl-T. When box is active, resizing corners will scale

it smaller or bigger. When double curved arrows are seen, you can

rotate image portion. Note: To end free transform, please click

Enter key or click the “Tick” at top




12. To rotate selection, you can also use the Edit->Transform option.

This also allows a selection to be flipped horizontally or vertically.

13. To create a new layer from a selection, right mouse click

selection, then choose “Layer via Copy”

14. To undo multiple times, click Ctrl+Alt+Z – note there is a 20 undo

limit unless configured in Photoshop

15. Use the “T” tool to type text. Click directly on image and start

typing – there is no need to draw a rectangle

16. Note: Photoshop automatically creates a new layer for all text.

To edit the text double click the “T” on the layer

17. To crop out a selection use the Crop Tool. Draw out a selection to

crop.




Note: To crop out to a specific width and height enter

the dimensions in the width and height box at the top.

Enter a value followed by a dimension eg 80 px which means 80

pixels

However for most cases, you do not need to enter these values

unless you wish to crop to a specific dimension so clear these values

18. To bring in an image from another file, use the “Arrange

Documents” window or click Window -> Arrange -> Float All In

Windows to see all the documents

Then use the “Move” tool to drag in the other file. It will appear as anew layer in Photoshop

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