Introduction to Photoshop CC - Adobe Photoshop CC - page 33

Select the North America Prepress 2 color setting.
4 Choose the Zoom tool ( ) from the Tools panel, and then click and drag to create a zoom area around
the bar of the goal in the image.
5 Choose View > Proof Colors, or press Ctrl+Y (Windows) or Command+Y (Mac OS). Notice a slight
change in the color of the red, as the colors appear more subdued. The Proof Colors command allows
you to work in the RGB format while approximating how your image will look when converted to
CMYK, the color space used for printing. While you will work on images in the RGB mode, they gen-
erally must be converted to CMYK before they are sent to a professional printer. Leave them in RGB
mode if going to a desktop printer or copier.
The image before Proof Colors is turned on.
The image after Proof Colors is turned on.
Adjusting image size
Next, you will adjust the image size for printing. When printing an image, you generally want a resolution
of at least 150 pixels per inch. For higher-quality images, you will want a resolution of approximately 266
pixels per inch. While this image was saved at 72 pixels per inch, it is larger than needed. By reducing the
physical dimensions of the image, the resolution (number of pixels per inch) can be increased.
1 Choose Image > Image Size; the Image Size dialog box appears. The image currently has a resolution of
72 pixels per inch.