ACDSee Gemstone Photo Editor

ACDSee Gemstone Photo Editor is a layer based photo editor from ACD Systems that combines RAW processing, retouching tools, and color correction in a single application. It supports nondestructive editing with a full history panel, so every adjustment can be modified or removed at any point during the workflow.

What it does

The editor is split into two main modes. Develop mode handles global adjustments: exposure, white balance, contrast, noise reduction, and color tuning with per channel control over hue, saturation, and luminance. You work with sliders that update the preview in real time, and all changes are stored as instructions rather than applied directly to pixels, so the original file stays untouched.

Edit mode is where pixel level work happens. You get layers with blending modes, a repair tool for removing blemishes and unwanted objects, text overlays, and a collection of effects and filters. The crop tool includes preset aspect ratios and a straighten function that rotates the image by any angle. RAW files from Canon, Nikon, Sony, Fujifilm, and other camera manufacturers open natively, so you can go from camera card to finished export without needing a separate RAW converter.

Who it is for

I recommend Gemstone Photo Editor to photographers who want RAW processing and layer editing in a single application without the subscription cost of Adobe's Creative Cloud. It handles the typical workflow of importing RAW files, adjusting exposure and color, retouching portraits, and exporting finished images well. If you need advanced compositing, extensive plugin support, or work on macOS, Affinity Photo or GIMP are stronger alternatives in those areas.