Page 18 - Adobe Photoshop CC 2020

6. Control/right-click the horizontal ruler and make sure Inches is checked Note:
as the default unit of measurement.
As you can see in the rulers, this image has a very large physical size. You can change the
default unit of measure-
ment in the Units &
Use the contextual Rulers pane of the
menu to make sure Preferences dialog box.
rulers are displayed Double-clicking either
in Inches.
ruler opens the appro-
priate pane of the
Preferences dialog box.

7. Choose Image>Image Size.
The actual number of
The Image Size dialog box shows pixels in the image is
the number of pixels in the image, the most important
as well as the image dimensions and information.
current resolution. You can change
any value in this dialog box, but
you should understand what those
changes mean before you do so.

As you can see, this image is Use this widget to Click and drag in the Note:
approximately 69″ wide and 46″ change the preview preview window to Press Command-
high, but it was captured at 72 percentage. show a different area. Option-I/Control-Alt-I
pixels/inch. For most commercial to open the Image Size
printing, you need at least 300 ppi. You can use the principle of effective resolution to dialog box.
change the file to a high enough resolution for printing.

8. Check the Resample option at the bottom of the dialog box (if necessary).
The options in this dialog box remember the last-used choices. The Resample option
might already be checked in your dialog box.
Resampling means maintaining the existing resolution in the new image dimensions;
in other words, you are either adding or deleting pixels to the existing image. When
this option is turned on, you can change the dimensions of an image without affecting
the resolution, or you can change the resolution of an image (useful for removing
excess resolution or downsampling) without affecting the image size.

When the Resample option is checked, you can use the attached menu to tell
Photoshop how to generate extra pixel data when increasing the
image size, or which pixels to discard when reducing the image
size. Each option also includes a parenthetical notation about
when it is best used (enlargement, smooth gradients, etc.).

30 Project 1: Music CD Artwork