Adobe Creative Suite 3 (CS3) was a comprehensive suite of professional graphic design, video editing, web development applications developed by Adobe Systems. Released on April 15, 2008 for Windows XP SP2 and Mac OS X Panther or later versions, CS3 marked the first release to support Intel-based Macs.

One of its flagship products within this suite was Photoshop CS3 Extended '1'. This robust application is specifically designed for professionals working with high-end digital imaging tasks. It includes a wide range of features such as 32-bit and HDR (High Dynamic Range) image editing, along with advanced tools like Camera Raw support, layer effects, and more.

Photoshop CS3 Extended also offers powerful new features that set it apart from its predecessors. Some key improvements include:

- Mercury Playback Engine: This revolutionary engine provides ultra-fast performance for demanding video projects.

- HDR (High Dynamic Range) Editing: Enables users to capture images with an expanded tonal range and then edit them using 32-bit data types.

In addition, CS3 Extended includes support for industry-standard file formats like DNG (Adobe's own RAW format), PSD/PSB, TIFF, and more. It also offers integration with other Creative Suite applications through Adobe Bridge CS3 '2', allowing users to easily import/export files between different apps in the suite.

The layout of Photoshop CS3 Extended is designed for ease-of-use while still maintaining its advanced features within reach. The user interface has been thoroughly overhauled compared to previous versions, making it easier than ever before so even beginners can quickly pick up basic operations without feeling lost or overwhelmed by all those complex options scattered throughout numerous panels & palettes.

Overall, Adobe Photoshop CS3 Extended is an essential tool for any serious graphic designer looking for unparalleled creative control over their projects. Whether you're working on a simple logo design project or producing high-end motion graphics and effects sequences, this powerful software has got everything covered under one roof!

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