Welcome to Adobe® Photoshop® CS5.1. This document contains late-breaking product information, updates, and troubleshooting tips not covered in the Photoshop documentation. 

• Minimum system requirements
• Install your software
• Uninstall your software
• Trial software
• Electronic licensing
• Registration information
• Font installation
• Known issues
• Customer care
• Other resources

Minimum system requirements

Windows®

• 2GHz or faster processor* 
• Microsoft® Windows® XP with Service Pack 3, Windows® Vista® Home Premium, Business, Ultimate, or Enterprise with Service Pack 2, Windows® Vista® 64-bit or Windows® 7
• 1GB of RAM or more recommended
• 1GB of available hard-disk space for installation; additional free space required during installation (Photoshop CS5.1 cannot be installed on flash-based storage devices.)
• 1,024x768 display (1,280x800 recommended) with qualified hardware-accelerated OpenGL® graphics card, 16-bit color and 256MB VRAM 
• DVD-ROM drive
• Some 3D features in Adobe Photoshop Extended require an OpenGL 2.0 capable graphics card with at least 256MB of VRAM (512MB VRAM is recommended)
• Shader Model 3.0
• Some features in Bridge rely on DirectX9 capable graphics card with at least 128MB of VRAM
• QuickTime 7.4.5 required for multimedia features 
• Broadband Internet connection required for online services

*SSE2-enabled processor required for AMD systems

Mac OS X

• Multicore Intel® processor 
• Mac OS X v10.5.7 minimum is required; Mac OS v10.6.2 is recommended; 32-bit and 64-bit systems (You may need to run 32-bit in order to run 32-bit only plug-ins.)
• 1GB of RAM or more recommended
• 2GB of available hard-disk space for installation; additional hard-disk space required during installation (Photoshop CS5.1 cannot be installed on a volume that uses a case-sensitive file system or on flash-based storage devices.)
• 1,024x768 display (1,280x800 recommended) with qualified hardware-accelerated OpenGL® graphics care, 16-bit color and 256MB VRAM
• DVD-ROM drive
• Some 3D features in Adobe Photoshop Extended require an OpenGL 2.0 capable graphics card with at least 256MB of VRAM (512MB VRAM is recommended)
• Shader Model 3.0
• QuickTime 7.4.5 required for multimedia features 
• Broadband Internet connection required for online services

For updates to system requirements, visit http://www.adobe.com/products/photoshop/photoshop/systemreqs/

For CS Live system requirements, visit www.adobe.com/go/cslive_requirements

This product may allow you to extend its functionality by accessing certain features that are hosted online, including the Adobe CS Live online services ("Online Services"). The Online Services, and some features thereof, may not be available in all countries, languages, and/or currencies and may be discontinued or modified in whole or in part without notice.  Use of the Online Services is governed by separate terms of use and by the Online Privacy Policy, and access to some services may require user registration. Some Online Services may be subject to fees and require a subscription. Fees subject to change. For more details and to review the applicable terms of use and Online Privacy Policy, visit www.adobe.com.

Install your software

Adobe Photoshop CS5.1 and Adobe Photoshop CS5.1 Extended

Both Adobe Photoshop CS5.1 and Adobe Photoshop CS5.1 Extended have the option to run natively in either 32-bit or 64-bit editions of Windows® Vista® Home Premium, Business, Ultimate, or Enterprise with Service Pack 2, Windows® 7 or Macintosh OSX v10.5.7 - 10.6.2.

Macintosh 64-bit

Photoshop will automatically detect and run the 64-bit version on 64-bit Macintosh systems. To force Photoshop to launch the 32-bit version, navigate to the application and "Get Info" (Control + Click on the application icon), then select the "Open in 32-bit mode" checkbox.

Microsoft® Vista® or Windows 7

Photoshop will automatically install the 32-bit version of Photoshop CS5.1 if you are on a 32-bit Windows OS. Photoshop will install both the 32-bit and 64-bit versions of Photoshop on 64-bit systems. To install only the Photoshop 64-bit version on a 64-bit Windows OS, follow the steps below:

Known issues

• On Mac, you cannot install to the root directory of the boot drive.
• When installing on Vista64, an incorrect default installation location appears. The application will be installed in the correct location: C:\Program Files (x86).
• The "Total Size" displayed in the Installer Options screen includes space required for components required for the installation but NOT shown in the component list; the number may not equal the listed components size.
• For more detailed information about troubleshooting your installation, go to www.adobe.com/go/support_loganalyzer.
• Can’t install on case-sensitive file systems. Please see: http://kb2.adobe.com/cps/404/kb404473.html

Note: In order to install additional components or reinstall your software after your original installation, you will need access to the original installer (CD, DVD or the download from the web). Repair is not an available option. 

• If you are running Microsoft® Windows® XP with Service Pack 3, Photoshop will run in both 32-bit and 64-bit editions. However, we do not officially support the 64-bit edition and you may run into problems.
• If you install Photoshop CS5.1 on your system and then install Photoshop CS4 afterward, you will not in the future be able to use the Photoshop CS4 installer to repair your Photoshop CS4 installation. To do the repair, you must uninstall Photoshop CS4 and then reinstall it.

Uninstall your software

Before you uninstall, close all applications currently running on your system (including other Adobe applications, Microsoft Office applications, and browser windows).

Do one of the following:

• In Windows® XP, open the Windows Control Panel and double-click Add or Remove Programs. Select the product that you want to uninstall, click Change/Remove, then follow the on-screen instructions. 
• In Windows® Vista® and Windows® 7, open the Windows Control Panel and double-click Programs and Features. Select the product that you want to uninstall, click Uninstall, then follow the on-screen instructions.
• IMPORTANT: Mac OS has new uninstall functionality. DO NOT drag applications to the trash to uninstall them. To safely uninstall on Mac OS X, double-click the product installer in Applications/Utilities/Adobe Installers or double-click on the Uninstall alias located in the Application folder. Select Remove Preferences, then Authenticate as an Administrator and follow the on-screen instructions.

Note: We allow you to install on two computers per serial number. If you have done so, but want to install the product on a new machine, you must first deactivate the software on one of your computers. To deactivate, either choose Help > Deactivate or check the Deactivate checkbox during the uninstall process.

Trial software 

Entering a serial number

Enter the serial number for the software you purchased in the serialization screen. The serialization screen will load the first time you launch the application. You can enter a serial number for the application itself or a serial number for any Creative Suite that contains the application. If the product you purchased is one of the Creative Suites, you can enter the serial number in any of the applications contained in the Creative Suite. Other applications installed as part of the same Creative Suite will recognize the new serial number the next time the applications are launched. 

Only applications running as a trial will recognize the new serial number. If any of the applications have already been serialized with a different serial number, they will continue to use that serial number until you remove the older serial number using Help > Deactivate > Deactivate Permanently. After selecting this option, they will recognize the new serial number on the next launch of the application. 

The serial number you purchased is for the use of the software in a specific language, and will only be accepted by a product installed in that language. 

Volume licensing

Volume licensing customers cannot purchase from a trial directly. However, a volume licensing serial number can be used to serialize all Creative Suite applications, except the Acrobat 9 trial or retail versions that ship with Creative Suite. Photoshop CS5.1 volume licensing software must be purchased from an authorized Adobe licensing center. Please contact your reseller or authorized Adobe licensing center to place an order for a volume license. To find a reseller in your area, go to http://partners.adobe.com/resellerfinder/na/reseller.jsp. 

Electronic licensing

You must accept the license agreement and warranty terms to use this product. See www.adobe.com/go/eulas for details. This product may automatically attempt to activate over the Internet. See www.adobe.com/go/activation for details.

Registration information

Creating an Adobe ID registers your software and sets up access to Adobe CS Live online services. In order to take advantage of your complimentary subscription of CS Live services, and get up-to-date product information, training, newsletters, and invitations to Adobe events and seminars, you must register your product.

Font installation

All font related documentation is online. Visit http://www.adobe.com/type/browser/landing/creativesuite/creativesuite5.html to find our OpenType User Guide, OpenType Read Me, links to font-specific Read Me documents, listings of fonts installed by the different CS5.1 products, and listings of fonts included on DVD for each of the CS5.1 products.

The Creative Suite 5.1 installer installs fonts into a default system font directory. Many of these fonts are newer versions of fonts installed by Creative Suite 4. If the installer finds older versions of these fonts in the default system font directory, it will uninstall the older versions, and save them to a new directory. The default system font directory is:

• Mac: <System Disk>/Library/Fonts
  
  
• Windows: <System Disk>:\Windows\Fonts

The older fonts will be saved in the new directory:

• Mac: <System Disk>/Library/Application Support/Adobe/SavedFonts/current
  
  
• Windows: <System Disk>:\Program Files\Common Files\Adobe\SavedFonts\current

This new directory will also contain a file named "Read Me.html" which lists the saved fonts, as well as the version numbers of the new and old font files.

You can re-install the older fonts by deleting the new font files from the default system font directory and moving the old files back into that directory.

There are additional fonts on the installation disc. For information on installing these fonts, see http://www.adobe.com/go/learn_fontinstall_en. 

Customer care

Customer Service

Adobe Customer Service provides assistance with product information, sales, registration, and other non-technical issues. To find out how to contact Adobe Customer Service, please visit Adobe.com for your region or country and click on Contact.

Support Plan Options and Technical Resources 

If you require technical assistance for your product, including information on complimentary and fee-based support plans and troubleshooting resources, more information is available at http://www.adobe.com/go/support/. Outside of North America, go to http://www.adobe.com/go/intlsupport/, click on the drop down menu under the question “Need a different country or region?”, choose a different country or region, then click GO. Alternatively, you can click on Change beside the country name at the top of the screen to select a different country or region.

Free troubleshooting resources include Adobe’s support knowledgebase, Adobe user-to-user forums, Adobe Support Advisor and more. We are continually making additional tools and information available online in order to provide you with flexible options for resolving issues as fast as possible.

If you are having any issues with installing or uninstalling any of your Creative Suite 5.1 applications, please try rebooting your system prior to contacting Support. For additional CS5.1 installation help, go to www.adobe.com/go/cs5install/.

Other resources

Online Resources

For complete Help plus community-based instruction, inspiration, and support, go to www.adobe.com/go/learn_Photoshop_support_en.

Adobe website

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Adobe Design Center 

Developer Center

User Forums

Adobe User Groups

Adobe Marketplace and Exchange

Training

Adobe Certification Program

Adobe Partner Programs

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