
Easily access full editing power
Take greater advantage of all that Adobe® Photoshop® CS4 Extended offers with a more intuitive user interface and nondestructive editing freedom so you can achieve the highest quality results.
-Revolutionary, nondestructive image editing
-Professional color and tone control
-Intelligent image editing and enhancement
-Advanced compositing
Work more efficiently
Be more productive by taking advantage of smooth integration with other Adobe software and enhancements that leverage the power of today’s faster graphics processors.
-Efficient and flexible work environment
-Streamlined workflow
-Online services
Edit 3D and motion-based images
Enjoy breakthrough enhancements that let you work with 3D content and video frames. New 3D capabilities and improved video controls dramatically expand your creative options.
-Comprehensive 3D image editing
-Video and animation design

Analyze images with precision
With Adobe Photoshop CS4 Extended, you get additional measurement and counting tools, as well as support for DICOM images and MATLAB processing routines.
-Measurement, counting, and edit-tracking tools
-Support for manufacturing, medical, and scientific workflows
System requirements:
Windows
-1.8GHz or faster processor
-Microsoft® Windows® XP with Service Pack 2 (Service Pack 3 recommended) or Windows Vista® Home Premium, Business, Ultimate, or Enterprise with Service Pack 1 (certified for 32-bit Windows XP and 32-bit and 64-bit Windows Vista)
-512MB of RAM (1GB recommended)
-1GB of available hard-disk space for installation; additional free space required during installation (cannot install on flash-based storage devices)
-1,024×768 display (1,280×800 recommended) with 16-bit video card
-Some GPU-accelerated features require graphics support for Shader Model 3.0 and OpenGL 2.0
-DVD-ROM drive
-QuickTime 7.2 software required for multimedia features
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Product link:
adobe cs4
DL: (616 mb)
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Adobe CS4 User Guide:
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