Check for Updates from the Photoshop Help Menu Click the Help menu, and then click Updates.. Getting Help While You Work Get Help Information Click the Help menu, and then click Phot
Trang 1You can modify the size and resolution of a document after opening
However, be aware that changing the size and/or the resolution of an image forces Photoshop to add or subtract pixels from the image in a
process called interpolation For example, when you change the
reso-lution of an image from 72 ppi (pixels per inch) to 144 ppi, Photoshop must add more pixels Conversely, if you reduce the resolution, Photoshop must remove pixels The image interpolation method deter-mines how Photoshop completes this process You can use the Nearest Neighbor method for the fastest way, but it produces the poorest visual image Or, you can use the Bicubic Sharper method, which takes the longest to perform, but produces the best visual results
Changing Image Size
and Resolution
Change Image Size
Open an image
Click the Image menu, and then
click Image Size.
Select the Resample Image check
box
Click the Resample Image list
arrow, and then select an option:
◆ Nearest Neighbor Best for
quick results with low quality
◆ Bilinear Best for line art.
◆ Bicubic Default, best for most
purposes with high quality
◆ Bicubic Smoother Best for
enlarging an image
◆ Bicubic Sharper Best for
reducing an image
To maintain image proportions,
select the Constrain Proportions
check box
Enter the desired sizes in the
image size boxes
If you choose to constrain
proportions in step 5, when you
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Icon indicates constrained proportions
Using a Large Canvas Size
Photoshop supports documents up to 300,000 pixels in either dimen-sion, with up to 56 channels per file Photoshop offers three file for-mats for saving documents greater than 2 GB: PSB, Photoshop
For Your Information
Trang 2Change Image Resolution
Open an image
Click the Image menu, and then
click Image Size.
Clear the Resample Image check
box
Enter a resolution, which
automatically adjusts the Width
and Height fields
Click OK.
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Trang 3As time passes, Photoshop—like any other program—will change
There are two types of changes to a program: updates and patches
Updates are improvements to a program such as a new feature, option,
or command Patches are software fixes for problems discovered after the public release of the program The good news is that both updates and patches are free, and once downloaded, are self-installing Adobe gives you two ways to check for changes You can check manually by going to the Adobe web site, or automatically through the Adobe Updater The Adobe Updater Preferences dialog box allows you to set update options for Photoshop and other installed Adobe products, such
as Bridge You can also set an option to have Adobe notify you of updates in the menu bar (New !)
Checking for Updates
and Patches
Check for Updates Directly from
the Internet
Open your Internet browser
Go to the following Web address:
www.adobe.com/downloads/
updates/
Click the Product list arrow, and
then click the Photoshop
Macintosh or Photoshop
-Windows.
Click Go.
Any updates or patches appear in
a list
Based on your operating system,
follow the onscreen instructions to
download and install the software
IMPORTANT Checking on your
own requires a computer with a
connection to the Internet Since
some of the updates can be rather
large, it’s recommended you have
high-speed access
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Trang 4Check for Updates from the
Photoshop Help Menu
Click the Help menu, and then
click Updates.
Adobe checks your software with
the latest available version and
automatically updates it
To manually check, click the
Check For New Updates button.
To change preferences, click
Preferences, select the update
options you want, and then click
Done.
Click Quit.
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Did You Know?
You can deactivate or activate
Photoshop to use on another computer
You can use your serial number on only
one computer at a time If you’re
mov-ing from one computer to another, you
can deactivate your serial number on
one computer and then activate it
another one Click the Help menu, click
Deactivate, click Suspend Activation
(saves serial number) or Deactivate
Permanently (removes serial number),
and then click Done To activate it,
click the Help menu, click Activate, and
then follow the instructions
You can complete or update your
Adobe ID profile An Adobe ID allows
you to access Adobe online services
To complete or update your Adobe ID
profiles, click the Help menu, click
Complete/Update Adobe ID Profile, and
then follow the online instructions
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Trang 5Getting Help While
You Work
Get Help Information
Click the Help menu, and then
click Photoshop Help.
TIMESAVER Press F1 (Win) or
A+/ (Mac)
The Adobe Community Help
window opens, displaying
product help information
Click Help categories (plus sign
icons) until you display the topic
you want
Click the topic you want
Read the topic, and if you want,
click any links to get information
on related topics or definitions
When you’re done, click the Close
button (Win) or click the Adobe
Help menu (Mac), and then click
Quit Adobe Help.
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Did You Know?
You can get help with Photoshop
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Click to collapse/
expand panel
Click to open help in a PDF
At some time, everyone has a question or two about using a program
When you start Photoshop Help, the Adobe Community Help window opens (New !), displaying help categories and topics You can search product help from Local Help, Community Help, or Adobe.com by using keywords or phrases or browsing through a list of categories and top-ics to locate specific information Local Help accesses product help on your local computer, Community Help accesses product help online, and Adobe.com accesses related help information on Adobe.com
When you perform a search using keywords or phrases, a list of possi-ble answers is shown from the search location with the most likely responses at the top Along with help text, some help topics include links to text and video tutorials In addition, comments and ratings from users are available to help guide you to an answer You can add feed-back and suggestions by signing in to Adobe.com using an Adobe ID
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Trang 6Search for Help Information
Click the Help menu, and then
click Photoshop Help.
The Adobe Community Help
window opens, displaying
product help information
To search another CS product,
click the Select Product list arrow,
and then select a CS product
Type one or more keywords in the
Search box, and then press Enter
(Win) or Return (Mac)
To refine a search, click Search
Options to expand it, and then
select any of the following options:
◆ Search This Help System Only
Select to constrain the search
to the selected product
◆ Search Location Select Local
Help, Community Help, or
Adobe.com
◆ Filter Results For Adobe.com,
select a filter option
Click the link to the topic you want
from the search list of results
◆ What’s New Click the plus sign
(+) next to Resources, and then
click What’s New.
Read the topic, and if you want,
click any links to get information
on related topics or definitions
◆ Next and Previous Topics Click
the Previous or Next button on
the right side of the Help web
page
When you’re done, click the Close
button (Win) or click the Adobe
Help menu (Mac), and then click
Quit Adobe Help.
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Participating in Adobe Product Improvement
You can participate in the Adobe Product Improvement Program Click the Help menu, click Adobe Product Improvement Program, and then follow the onscreen instructions This is an opt-in program that allows you to test Adobe products and make suggestions for future products
This program enables Adobe to collect product usage data from cus-tomers while maintaining their privacy
For Your Information
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