CS4

CS4 features smoother panning and zooming, allowing faster image editing at a high magnification. The interface is more simplified with its tab-based interface^[44] making it cleaner to work with. Photoshop CS4 features a new 3D engine allowing the conversion of gradient maps to 3D objects, adding depth to layers and text, and getting print-quality output with the new ray-tracing rendering engine. It supports common 3D formats; the new Adjustment and Mask Panels; Content-aware scaling (seam carving^[45]); Fluid Canvas Rotation and File display options.^[46] The Content-aware scaling allows users to intelligently size and scale images,^[44] and the Canvas Rotation tool makes it easier to rotate and edit images from any angle.^[44]
Adobe released Photoshop CS4 Extended, which has the features of Adobe Photoshop CS4, plus capabilities for scientific imaging, 3D, motion graphics,^[44] accurate image analysis^[44] and high-end film and video users. The faster 3D engine allows users to paint directly on 3D models, wrap 2D images around 3D shapes and animate 3D objects.^[44] As the successor to Photoshop CS3, Photoshop CS4 is the first x64 edition of Photoshop on consumer computers for Windows.^[47] The color correction tool has also been improved significantly.^[44]
CS4 and CS4 Extended were released on 15 October 2008.^[44] They were also made available through Adobe’s online store and Adobe Authorized Resellers.^[44] Both CS4 and CS4 Extended are offered as either a stand-alone application or feature of Adobe Creative Suite. The price for CS4 is US$699 and the extended version is US$999.^[44] Both products are compatible with Intel-based Mac OS X and PowerPCs, supporting Windows XP and Windows Vista.^[44]