Add guides to the image, select the Slice tool on the toolbox, and then click Slices From Guides on the Options bar.. After you create slices within an image, you can use the Options bar
Trang 1Photoshop allows you to slice a document into smaller pieces You might want to slice an image to create interactive links; however, the best reason is speed You gain speed by compressing individual slices
to reduce the image size There are two types of slices: user-defined
and layer-based You can draw directly on an image to create a user
slice using the Slice tool, or create a layer and then change it into a layer-based slice When you create a slice, Photoshop also creates auto slices, which fill the space in the image that is not defined by a
user-defined slice User-defined and layer-based slices are identified
by a solid line with blue symbols, while auto slices are identified by a dotted line with gray symbols The slices also are numbered from left to right and top to bottom A layer-based slice uses all the data in the layer to make up the slice If you want to make changes to the slice, you need to edit the layer, which makes it a little more difficult to use than a user slice When you edit or move the layer contents, the slice is automatically changed too
Slicing Images the
Easy Way
Create a User Slice
Open a document
Select the Slice tool on the
toolbox
IMPORTANT To make slicing a
little easier, drag a few guides
from the Ruler bar to help guide
your slicing tool
Click the Style Setting list arrow
on the Options bar, and then select
the style you want:
◆ Normal Specifies the slice size
as you drag
◆ Fixed Aspect Ratio Specifies a
ratio for the slice height and
width
◆ Fixed Size Specifies the slice
height and width in pixels
Drag and release the slice tool in
the document to create a
rectangular or square slice
◆ To constrain the slice to a
square, hold down Shift as you
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Trang 2Create a Layer-based Slice
Open a document
Select the layer you want in the
Layers panel
Click the Layer menu, and then
click New Layer Based Slice.
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Layer-based slice
Did You Know?
You can convert an auto or
layer-based slice to a user slice Select the
slice using the Slice Select tool, and
then click Promote on the Options bar
You can create slices from guides.
Add guides to the image, select the
Slice tool on the toolbox, and then click
Slices From Guides on the Options bar
To create a new guide, click the View
menu, click New Guide, click the
Horizontal or Vertical option, specify
the position in inches, and then click
OK
You can lock guides To keep a guide
from being moved, click the View
menu, and then click Lock Guides
You can remove guides To remove
guides, click the View menu, and then
click Clear Guides
You can show and hide guides Click
the View menu, point to Show, and
then click Guides The command
toggles the guides’ visibility on and off What’s a Subslice?
The subslice is a type of auto slice that is automatically created when you create overlapping slices They are created as a stack, one on top of the other, which you can rearrange The subslice shows you how the image is divided when you save the optimized file Subslices appear with a number and a slice symbol When you make changes
to a slice related to a subslice, the subslice automatically gets recreated
For Your Information
Trang 3After you create slices within an image, you can use the Options bar or the Save For Web & Devices dialog box to work with slices You can select options to show or hide slices, select one or more slices, delete
or duplicate slices, and view or change slice settings If you have an image with more than one slice, you need to optimize the slices in the Save For Web & Devices dialog box You can use the Optimize menu to link multiple slices together For linked slices in the GIF and PNG-8 format, Photoshop uses the same color panel and a dithering pattern to hide the seams between slices
Working with Slices
Work with Slices in the
Photoshop Window
Open a document with slices
Use any of the following:
◆ Show or Hide Slices Click the
View menu, point to Show, and
then click Slices
◆ Show or Hide Auto Slices.
Select the Slice Select tool, and
then click Show Auto Slices or
Hide Auto Slices in the Options
bar
◆ Select Slices Click the Slice
Select tool, and then click the
slice you want Use Shift+click
or drag to select multiple slices
◆ Delete Slices Select the slices,
and then press Delete
◆ Duplicate Slices Select the
slices, and then Alt (Win) or
Option (Mac) and drag the
selection
◆ View Slice Options Click the
Slice Select tool, and then
double-click the slice you want
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Slice tools
Auto slice
User slice
See Also
See “Working with Guides, Grid &
Trang 4Work with Slices in the Save
For Web & Devices Dialog Box
Open a document with slices
Click the File menu, and then click
Save For Web & Devices.
Select the file type you want,
select any options, and then make
any adjustments you want
◆ Show or Hide Slices Click the
Toggle Slices Visibility button
◆ Select Slices Click the Slice
Select tool, and then click the
slice you want Use Shift+click
or drag to select multiple slices
◆ View Slice Options Click the
Slice Select tool, and then
double-click the slice you want
◆ Link Slices Select the slices
you want to link, click the
Optimize menu double-arrow
(Win) or arrow (Mac) button,
and then click Link Slices
A link icon appears on the
slices
◆ Unlink Slices Select the slice,
click the Optimize menu
double-arrow (Win) or arrow
(Mac) button, and then click
Unlink Slice or Unlink All Slices
When you’re done, click Save to
save the image or click Done to
save your settings
TIMESAVER Hold down Ctrl
(Win) or Command (Mac) to switch
between the Slice tool and the
Slice Select tool
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Toggle Slices Visibility button
Slice Select button Linked slices Optimize menu
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Trang 5Moving and resizing objects in Photoshop is a common task You can move or resize slices in the same basic way you do other objects In addition to moving slices, you can also align them along an edge or to the middle, and evenly distribute them horizontally or vertically When you align and distribute slices, you can reduce the amount of unneces-sary auto slices, thereby creating smaller files and faster load times
When you have slices overlapping each other, you can change the stacking order to move them up or down in the order For example, if you have one slice behind another, you can bring the slice forward one level at a time or to the top (front)
Arranging Slices
Move or Resize Slices
Open a document with slices
Select the slices you want to move
or resize
To move a slice selection, drag the
slice to a new location You can
press Shift to constrain movement
up, down, or diagonally
To resize a slice, drag the side or
corner handle of the slice When
you select adjacent slices with
common edges, the slices resize
together
◆ You can also click Options in
the Options bar to set exact
slice position or size
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Options button
Did You Know?
You can copy and paste a slice You
can copy and paste a slice like any
other object using the Copy and Paste
commands If you copy a slice from
Dreamweaver, it retains information
from the original file in Photoshop
You can snap slices to a guide, user
slice, or other object Click the View
menu, point to Snap To, and then select
the elements you want Click the View
Trang 6Align, Distribute, or Stack Slices
Open a document with slices
Select the slices you want to
arrange
To align slices, select the
alignment button on the Options
bar you want: Top, Vertical
Centers, Bottom, Left, Horizontal
Centers, or Right
To evenly distribute slices, select
the distribute button on the
Options bar you want: Top, Vertical
Centers, Bottom, Left, Horizontal
Centers, or Right
To change the slice stacking order,
select the stack button on the
Options bar you want: Bring To
Front, Bring Forward, Send
Backward, or Send To Back
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Did You Know?
You can combine user and auto slices.
Right-click the selected slices, and
then click Combine Slices
You can divide user and auto slices.
Select the slice using the Slice Select
tool, and then click Divide on the
Options bar In the Divide Slice dialog
box, select options to divide the slice
horizontally or vertically, up or down in
equal parts, or enter an exact size in
pixels, and then click OK
Trang 7After you create slices within an image, you can export and optimize each slice using the Save For Web & Devices command, which saves each slice as a separate file and creates the code to display them on a web page After you click Save in the Save For Web & Devices dialog box, the Save Optimized As dialog box appears You can use this dialog box to access the Output Settings dialog box and set output options to control the format of HTML files, the names of files and slices, and the way Photoshop saves background images
Saving a Sliced
Image for the Web
Save a Slice for the Web
Open a document with the slice
you want to save
Click the File menu, and then click
Save For Web & Devices.
Select the file type you want,
select any options, and then make
any adjustments you want
Click Save.
Click the Save as Type (Win) or
Format (Mac) list arrow, and then
select whether to save the images
in HTML and Images, Images Only,
or HTML Only.
Click the Settings list arrow, and
then select the output settings you
want Default Settings is
recommended for normal use
See the next page for details about
selecting output settings
Click the Slices list arrow, and
then click All Slices, All User
Slices, or Selected Slices.
Click Save.
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Trang 8Set Output Options for Slices
Open a document with the slice
you want to save
Click the File menu, and then click
Save For Web & Devices.
Click Save.
Click the Save as Type (Win) or
Format list arrow, and then select
the format you want
Click the Settings list arrow, and
then click Other.
Click the Output Type list arrow,
and then click Slices.
Select the following options:
◆ Generate Table Uses an HTML
table to display slices
◆ Empty Cells Specifies the way
to convert empty slices to table
cells
◆ TD W&H Specifies whether to
include width and height for
table data
◆ Spacer Cells Specifies when
to add empty spacer cells
◆ Generate CSS Creates a
Cascading Style Sheet (CSS) to
display the slices
◆ Referenced Specifies how to
reference slice positions using
CSS
◆ Default Slice Naming From the
list menus, select the options to
specify a slice naming scheme
Click OK.
Click the Slices list arrow, and
then select the slices option you
want
Click Save.
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Saving Output Settings for Future Use
If you frequently use the same settings to save a file, you can save your output settings as a preset for future use In the Output Settings dialog box, specify the settings you want to save for HTML, Slices, Background, or Saving Files, click Save, type a name, use the default folder location (the Optimized Output Settings folder), and then click Save The Output Setting file is saved with the ".iros" file extension By saving the Output Settings files in the Optimized Output Settings folder, you can quickly select the custom output setting file from the Save Optimized As dialog box If you didn't store the Output Settings file in the default folder, you can also use the Load button in the Output Settings dialog box to find it
For Your Information