Page 67 - CC2019_PS_Look_Inside

7. In the resulting TIFF Options dialog box, make sure the None image
compression option is selected.
TIFF fi les can be compressed (made smaller) using three methods:
• None applies no compression to the fi le. Th is option is safe if fi le
size is not an issue, but digital fi le transmission often requires fi les
to be smaller than a full-page, multilayered Photoshop fi le.
• LZW (Lempel-Ziv-Welch) compression is lossless, which means
all fi le data is maintained in the compressed fi le.
• ZIP compression is also lossless, but is not supported by all
desktop-publishing software (especially older versions).
• JPEG is a lossy compression scheme, which means some data will be thrown
away to reduce the fi le size. If you choose JPEG compression, the Quality
options determine how much data can be discarded. Maximum quality means
less data is thrown out and the fi le is larger; minimum quality discards more
data and results in a smaller fi le size.

8. Leave the Pixel Order radio button at the default value, and choose the
Byte Order option for your operating system.

Pixel Order determines how channel data is encoded. Th e Interleaved (RGBRGB) Note:
option is the default. Per Channel (RRGGBB) is called “planar” order.
Some experts argue that
Byte Order determines which platform can use the fi le on older versions of desktop
publishing software. Th is option is largely obsolete because most modern software can choosing the order for
now read either byte order. your system can improve
print quality, espe-
Save Image Pyramid creates a tiered fi le with multiple resolution versions; this isn’t cially on desktop output
widely used or supported by other applications, so you can typically leave it unchecked. devices.
If your fi le contains transparency, the Save Transparency check box will be available.
If you don’t choose this option, transparent areas will be white in the saved fi le.
9. In the Layer Compression area, make sure Discard Layers is selected.
Th ese three options explain — right in the dialog box — what they do.

10. Click OK to save the fi le, then continue to the next exercise.

Reduce the Physical File Size
Th e CD insert artwork needs to be approximately half the size of the album artwork.
Reducing the fi le’s physical size is an easy process, although you need to check the
positioning of various elements to make sure they meet the output requirements.
In this exercise you will reduce the fi le’s physical size, and then make necessary layer
adjustments to meet the needs of the CD insert.

1. With cd-artwork.psd open in Photoshop, choose Image> Image Size.
2. Make sure the Resample option is checked.

You are resizing this image, which means you are changing the physical dimensions
(and the actual number of pixels in the fi le). If Resample was not checked, you would
simply be redistributing the same number of pixels across a diff erent physical space.

Project 1: Music CD Artwork 79