All New CS4 Features

Smoother panning and zooming and fluid canvas rotation (New)
* Navigate to any area of an image with new, ultra-smooth zooming and panning. Maintain clarity as you zoom to individual pixels and easily edit at the highest magnification with the new Pixel Grid. And use the revolutionary new Rotate View tool to smoothly turn your canvas for distortion-free viewing at any angle.

Adjustments panel (New)
* Simplify image adjustment by easily accessing every tool you need to nondestructively adjust and enhance the color and tone of your images; on-image controls and a wide variety of presets are also included in the new live and dynamic Adjustments panel.

Auto-blending of images (Enhanced)
* Combine a range of images, each with a different exposure, color, and focal point ? with options to preserve tones and colors ? into a single color-corrected image.

Masks panel (New)
* Quickly create and edit masks from the new Masks panel. This panel offers all the tools you need to create editable pixel- and vector-based masks, adjust mask density and feathering, easily select noncontiguous objects, and more.
* Improved Adobe Photoshop Lightroom Workflow (Enhanced)

Improved Adobe Photoshop Lightroom Workflow (Enhanced)
* Select multiple photos in Adobe® Photoshop® Lightroom® software (sold separately) and automatically open them in Adobe Photoshop CS4 to merge them into a panorama, a high dynamic range (HDR) photo, or a multilayered Photoshop document. And seamlessly roundtrip back to Lightroom.
* Content-Aware Scaling (New)

Content-Aware Scaling (New)
* Use the new and revolutionary Content-Aware Scaling feature to automatically recompose an image as you resize it, smartly preserving vital areas as the image adapts to the new dimensions. Get the perfect image in one step without time-intensive cropping and retouching.

Better raw image processing (Enhanced)
* Enjoy superior conversion quality as you process raw images with the industry-leading Adobe Photoshop Camera Raw 5 plug-in, which now offers localized corrections, post-crop vignetting, TIFF and JPEG processing, and support for more than 190 camera models.

Extended depth of field (Enhanced)
* Easily create a single image from a series of shots that have different focal points with the enhanced Auto-Blend Layers command, which smoothly blends color and shading and now extends your depth of field, automatically correcting vignettes and lens distortion.

Industry-leading color correction (Enhanced)
* Enjoy dramatically enhanced color correction with reengineered Dodge, Burn, and Sponge tools that now intelligently preserve color and tone details.

Auto-alignment of layers (Enhanced)
* Create accurate composites with the enhanced Auto-Align Layers command. Move, rotate, or warp layers to align them more accurately than ever before. Or use spherical alignment to create breathtaking panoramas.

More powerful printing options (Enhanced)
* Get outstanding prints with superior color management, tighter integration with leading printer models, and the ability to preview out-of-gamut image areas. Support for 16-bit printing on Mac OS offers increased color depth and clarity.
* Efficient file management with Adobe Bridge CS4 (Enhanced)

More powerful printing options (Enhanced)
* Get instant access to Adobe Bridge CS4 with faster start-up, use new workspaces to jump to the right display for every task, easily create web galleries and PDF contact sheets, and more.

File display options (New)
* Easily work with multiple open files by using tabbed document display or n-up views.