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Adobe Photoshop CS2 |
Level
3 |
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Lesson 12 |
Learning how to resize an image for
printed output |
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Introduction |
When we prepare an image for printed
output, we may want to resize the
image while controlling the
resolution and file size.
The following lesson will teach you
how to change an image’s print
dimensions and resolution without
changing the number of pixels in the
image. |
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In Lesson #11, we have cropped a
photo. Let us check the print
dimensions of this photo. |
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Step #1: |
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Go to the
“Menu bar”.
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Choose View > Rulers. |
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Rulers appear along the top and left
hand side of the active window,
showing that the image is 2 inches ×
3 inches. |
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Step #2: |
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Go to the
“Menu bar”
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Choose Image > Image Size |
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The
“Image Size”
dialog box appears showing that:
The photo’s
print dimensions are 2 inches × 3 inches.
Resolution is 229ppi.
Pixel Dimensions are 458 pixels ×
687 pixels.
File Size is 921.8K |
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Step #3: |
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Check the
[ Constrain Proportions ]
box, so that height-to-width ratio
is preserved. |
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Step #4: |
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Uncheck the
[ Resample Image ]
box.
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See the Document Size section:
The link between Width and Height
changes to include Resolution as
well, so that when we enter a value
in one of the text boxes, the other
values will be automatically
updated. |
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Step #5: |
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Enter 150 in Resolution.
Width automatically increases to 3.053 inches.
Height also automatically increases
to 4.58 inches.
Notice:
Pixel Dimensions and File Size
remain unchanged.
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Click [ OK ].
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As pixel dimensions remain unchanged, the image
makes no difference on the screen.
However, the rulers change to
reflect the changes we have just
made. |
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Step #6: |
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Go to the
“Menu bar”.
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Choose File > Save.
Save our work and then go to the
next lesson. |
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Before |
After |
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Conclusion |
In this lesson, we learned
how to change image resolution and
print dimensions with the total
pixel count preserved. |
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