New features in ACDSee Pro 6 and ACDSee 15 include:
Brush on edits — Quickly brush on any editing effect or adjustment to a specific area of a photo, complete with size and feathering controls. Correct exposure, change the color, adjust details, or add a special effect.
Hierarchical keywords —  Create unlimited keyword hierarchies that span from general to very specific. Assign a keyword to an image with a check of a box and it automatically gets added to any higher keyword levels. Display all of the files assigned to a keyword with one click.
Burn to Blu-Ray — Easily archive images to a Blu-Ray disc directly from ACDSee.
Smart Blur — Apply the new Smart Blur filter as a creative editing effect or to reduce the noise in an image. Smooth out the grain and noise patterns between edges while still retaining sharpness and important details.
Clarity tool —  Add extra definition or soften a shot. The Clarity editing tool targets the mid-tones of photos, without affecting the highlights or shadow areas.
Improved noise reduction — Rescue high ISO photos with improved noise reduction controls for smoother and more natural results, while preserving as much edge detail as possible.

ACDSee Pro 6 offers additional workflow and development features to meet the demands of professional photographers:
Native 64-bit support — High resolution images require high amounts of handling power. Native 64-bit support on Windows operating systems allows users to speed through their image processing and workflow tasks.
Non-destructive adjustment brush — Make non-destructive edits to select areas of images using a versatile brush. Subtly or dramatically correct exposure, add clarity, boost vibrance and more.
New processing tools — Get a dreamy effect with Soft Focus, use Cross Process to add a surreal, retro look, and non-destructively reduce red-eye. Draw attention to a cropped portion of an image with Post-Crop Vignetting, complete with feathering, radius and roundness controls.
Improved color management — Reworked from the ground up, ACDSee Pro 6's color management system resolves color matching issues that can occur between different devices with much more accurate color matching and higher quality results. Multi-monitor support is also now included.
Improved sharpening — The new Detail slider adds control over the sharpening process by feathering or softening the sharpening halos.
Black and white mode — Take monochrome images to a new level of creativity with the dedicated black and white mode. Make high-quality non-destructive hue-based brightness adjustments and experiment with saturation-based tinting that provides the ability to add a specific hue back to a black and white image.
Advanced color improvements — Adjust individual or overall color in images with improved Advanced Color tools, built on a higher quality algorithm that uses modern color models for higher quality and more perceptual color adjustments. Add in more intuitive controls, and subtly fine-tune or dramatically change the hue, saturation, and lightness, for remarkably better results.