Click the Save In Win or Where Mac list arrow, and then select a location in which to save the document file.. Select the check box to save a copy of the file, while leaving the origin
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After all your hard work, you now need to save your document The saving process involves selecting a specific file format, naming the file, and choosing a destination Choose a file name that will help identify the document (looking in a folder of 100 images and seeing file names such as image_a, image_b, really doesn't help) Select a destination, such as a hard drive, removable media, or even a rewriteable CD or DVD Determine the format of the document file While name and loca-tion are important, the file format is crucial to the future of the image
The file format determines how the document is stored, and what infor-mation is saved with the file Choosing the wrong format may even pre-vent you from correctly outputting the file
Saving a Document
with a Different File
Format
Save a Document with a
Different File Format
Open a document
Click the File menu, and then click
Save As
Enter a name in the File Name
(Win) or Save As (Mac) box.
Click the Format list arrow, and
then select a format
See the table on the previous page
for assistance
Click the Save In (Win) or Where
(Mac) list arrow, and then select a
location in which to save the
document file
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See Also
See “Understanding File Formats” on
page 391 for information on the
differ-ent file formats
From the Library of Wow! eBook
Trang 2Select from the following Save
options:
◆ As a Copy Select the check
box to save a copy of the file,
while leaving the original open
◆ Alpha Channels Select the
check box to save any alpha
channel information
◆ Layers Select the check box to
preserve all layers within the
document
◆ Notes Select the check box to
save any note annotations with
the document
◆ Spot Colors Select the check
box to save any spot channel
information
Select from the following Color
options:
◆ Use Proof Setup
Select the check box to create
a color-managed document
◆ Embed Color Profile (Mac)
Select the check box to create
a color-managed Macintosh
document
◆ ICC Profile (Win) Select the
check box to create a
color-managed Windows document
Click Save.
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Organizing Documents
Organization is a big part of any Photoshop project For example, you might be working on several images, along with a dozen supporting images and text When you work on a project, create a project-specific folder and save all the different files you need for that proj-ect in the same folder That way everything is in one place, so it's easy to access, easy to move, and easy to store
For Your Information
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When you save a document, you have the ability to save more than just color information You can save copyright, camera, and even image category information This data is saved with the file as metadata in the XMP format (Extensible Metadata Platform), and can be accessed by any application that reads XMP data In addition, if the image is a pho-tograph, you can save data specifying the type of image, where it was shot, or the camera used You can even get information on shutter speed and f-stop That information will not only protect your intellectual property, but will supply you with vital statistics on exactly how you created that one-of-a-kind image
Inserting File
Information into
a Document
Insert File Information into
a Document
Open a document
Click the File menu, and then click
File Info.
TIMESAVER Press
Alt+Shift+Ctrl+I (Win) or
Option+Shift+A+I (Mac)
Click Description, and then enter
information concerning the author
and any copyright information
Click Camera Data, which reveals
information about the camera that
took the image
These are read-only fields and
include information such as
camera model, ISO, aperture,
metering, shutter speed, and pixel
dimensions
Click History to view historical
information about the active
document, such as dates last
opened and saved, and a list of
adjustments performed on the
image
Click IPTC, and then IPTC Contact,
IPTC Image, IPTC Content, and
IPTC Status to enter information
concerning the image's creator,
description and keywords, location
where photograph was taken, date
created, copyright, and usage
terms
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From the Library of Wow! eBook
Trang 4Click Origin, and then enter data
pertaining to the origin of the
image
Click Advanced to view
additional information on the
active document, such as EXIF,
and PDF document properties
Click OK.
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Did You Know?
You can add metadata to files saved in
the PSD, PDF, EPS, PNG, GIF, JPEG,
and TIFF formats The information is
embedded in the file using XMP
(Extensible Metadata Platform) This
allows metadata to be exchanged
between Adobe applications and
across operating systems
You can use the XMP Software
Development Kit to customize the
creation, processing, and interchange
of metadata You can also use the XMP
kit to add fields to the File Info dialog
box For information on XMP and the
XMP SDK, check the Adobe Solutions
Network
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Compression is Photoshop's way of reducing
the size of a document file, kind of like the
ultimate weight-loss program Just click a
button, and the file can be reduced to half its
original size Photoshop employs two types of
compression schemes: lossy and lossless
Lossy compression reduces the size of the file
by removing color information—information
that can never be restored to the saved
docu-ment Lossy compression schemes can
achieve file reductions of 80% or greater
The Lossless method reduces file size by
using compression algorithms that reduce the
size of a file without removing image
informa-tion Lossy methods are used primarily for
images displayed in browsers (images for the
Web) The relatively slow speed of the Internet
forces web designers to employ lossy
com-pression methods to reduce images down to
their smallest values Lossless methods are used when the reduction of a file is important, but not so much that you would consider removing information For example, you might want to reduce the size of a group of high-quality TIFF images so they fit on a rewriteable CD Lossless compression meth-ods can reduce files sizes up to 50%, or even
a bit more
Both methods compress documents based
on the actual image information For example, images that contain a lot of solid color infor-mation would compress quite well using the GIF (Graphics Interchange Format) or PNG-8 formats, whereas an image with a lot of con-tinuous tone colors, such as a photograph, would be best compressed using the JPEG (Joint Photographic Experts Group) format
Understanding File Compression
From the Library of Wow! eBook
Trang 6Format Compression Output Use
images that contain lots of colors that softly blend together
GIF Lossless Web Clip art, text, and any images that contain solid
colors and images with hard edges
PNG-8 Lossless Web Clip art, text, and any images that contain solid
colors and images with hard edges
PNG-24 Lossless Web/Slide Presentations/PDF/Print Photographs and
images that contain lots of colors that softly blend together Because the PNG-24 format is lossless, it can not compress images as small as the JPEG format
Therefore, the JPEG format is still the format of choice for compressing images for the Web
ZIP Lossless Used on all image types for image storage and transfer
The Zip compression application lets you compress images without affecting image quality To open a Zip image, you must have the Unzip application
LZW Lossless Used primarily on TIFF images for image storage and
transfer The LZW compression scheme lets you
com-press images without affecting image quality To open
an LZW image, the opening application must have the proper LZW decompress utility
Format Type, Compression Type, and Output Uses
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Clip art is defined as non-photographic image information, with a lot of solid-color areas When saving this type of file, the GIF or PNG-8 formats would work best The GIF (Graphics Interchange Format) and PNG (Portable Network Graphics) formats use an RLE (Run Length Encoding) scheme When the file is saved, areas of solid color are compressed into small units and then restored to the file when it is opened The GIF format supports a maximum of 256 colors While that may not seem like much, most GIF images, such as clip art and text, contain far less color information By reducing the number of colors available for the GIF color table, you can significantly reduce the image's file size For example, a GIF image composed of black text might only require a maximum of 2 colors (black and white) Experiment with the GIF Colors option to produce small, fast-loading image files
Since the GIF format has been around for a long time, using it almost guarantees that the image will open on a visitor's browser The PNG format is newer, and has some new encoding schemes that make even smaller files, but it is not supported by all web browsers
Preparing Clip Art
for the Web
Prepare Clip Art for the Web
Open a clip art document
Click the File menu, and then click
Save As.
Enter a name for the file in the
Save As box
Click the Save In (Win) or Where
(Mac) list arrow, and then select a
location in which to save the file
Click the Format list arrow, and
then click CompuServe GIF.
Click Save.
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From the Library of Wow! eBook
Trang 8Select from the following Indexed
Color options:
◆ Palette Click the list arrow, and
then select from the available
color palette options, including
Web (Safe), Mac, and Win
System panels
◆ Colors If you selected a local
color, or custom panel, click to
select the number of colors
saved with the image The
maximum number of colors
is 256
◆ Forced Click the list arrow, and
then select what colors will be
retained in the image
◆ Transparency Select the check
box to preserve any transparent
areas
◆ Matte If the image contains
transparent areas, clicking this
list arrow lets you select a color
to fill the areas For example,
you could fill all transparent
areas of the image with black to
match the black background of
a Web document
◆ Dither Click the list arrow, and
then select how you want the
remaining image’s color to mix
◆ Amount Enter an Amount
percentage to instruct the GIF
format how aggressively to
dither the image colors
◆ Preserve Exact Colors Select
the check box to force the
preservation of the original
image colors (based on how
many colors were chosen using
the Palette option)
Click OK.
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