Luminar AI is an image editing software developed by Skylum, built around artificial intelligence technology. It is designed specifically for macOS and simplifies complex post-processing workflows through a large number of AI tools, allowing users to focus on creative expression rather than tedious manual adjustments. Its core philosophy is “template-driven” and “AI-assisted,” enabling even beginners to quickly create professional-grade work.

1. Core Interface and Workspace Overview

After launching Luminar AI, you will see a clean, intuitive interface, mainly divided into the following areas:

Top Menu Bar and Toolbar: Contains traditional menus such as File, Edit, and View, as well as core action buttons like “AI Quick Edit,” “Undo,” and “Export.”
Left Panel – Catalog and Templates:
- Catalog: Displays local folders for browsing and selecting images to edit.
- Templates: One of Luminar AI’s core features. This section lists one-click presets created by AI categorization (such as Outdoor, Portrait, Travel, etc.) or by artists, and clicking one instantly changes the photo’s style.
Central Area – Viewing Area: The main canvas for image editing. Supports single-image view, before-and-after comparison view (shortcut Y), and collage view for multiple photos.
Right Panel – Editing Tools Area: The core hub for all image adjustment tools. From top to bottom, it is divided into:
- Tool Catalog: Contains four major categories: “Essentials” (basic adjustments), “Creative” (creative effects), “Portrait” (portrait processing), and “Professional” (professional tools).
- Tool Parameters Area: After selecting a specific tool, detailed sliders, buttons, and other controls will expand here for you to fine-tune.
Bottom Bar – Filmstrip: Displays thumbnails of all currently opened or selected photos, making it easy to switch between multiple photos or perform batch operations.

II. Complete Workflow: From Opening to Export

Step 1: Create/Open a Project

Method: After launching the software, you can get started in the following ways:

Click the “Add Photo” button in the toolbar.
Use the menu bar: File > Add Photo (shortcut Cmd + O).
Browse and double-click a photo directly from the “Catalog” panel on the left.

Luminar AI edits individual photos or groups of photos rather than traditional multi-layer “project” files. You can open multiple photos at once and switch between them in the bottom filmstrip.

Step 2: Basic Adjustments and AI Template Application

After opening a photo, it is recommended to try the AI templates first.

In the “Templates” panel on the left, browse different categories or use the search box at the top.
Hover the mouse over a template thumbnail to preview the effect in real time in the central view area.
Click a template you like to apply it. Each template is made up of a combination of multiple AI tools.
After applying a template, you can go to the “Edit” panel on the right for fine-tuning. For example, in “Essentials” adjust exposure, contrast, highlights, and shadows; in “AI Enhance” optimize the image with one click.

Step 3: Use AI tools for in-depth editing

This is the key step for leveraging the powerful features of Luminar AI. Common AI tools and how to use them:

AI Sky Replacement (under the “Creative” category): Click “Sky AI” and the software automatically detects the sky area. Choose a new sky from the built-in sky library, and AI will automatically match the lighting and color tone and blend the ambient color temperature into the foreground. Use the “Horizon Positioning” and “Global Sky Adjustment” sliders for fine-tuning.
Portrait AI (under the “Portrait” category): Automatically detects faces in the image. With one click, you can perform “Face Light,” “Eye Enhancement,” “Skin Blemish Removal,” “Face Sculpting,” and more. Each sub-tool has fine sliders to control the intensity.
Structure AI & Atmosphere AI (located under the “Essentials” or “Creative” category): “Structure AI” intelligently enhances texture details without producing halos; “Atmosphere AI” creates a sense of depth by adding simulated atmospheric haze.

Step 4: Local Adjustments and Masking

If you need to adjust specific areas of a photo, you can use the local tools:

At the top of the right-side editing panel, find and click the “Mask” button (the icon is a circular dashed line).
Select a mask type: Brush, Gradient, Radial Gradient.
Draw or drag out the adjustment area on the photo.
Any tool effects applied afterward will be limited to that mask area only. You can use Cmd + D to deselect the mask.

Step 5: Export the Final Image

Once editing is complete, export the final file.

Click the “Export” button on the right side of the top toolbar, or use the menu bar File > Export (shortcut Cmd + E).
Set the parameters in the export dialog that appears:
- Format: JPEG, PNG, TIFF, etc.
- Quality and Size: Adjust the JPEG quality slider, or adjust the output size (percentage or specific pixels).
- Rename and Destination Folder: Specify the name and save location of the exported file.
Click “Save” to complete the export.

III. Advanced Tips for Common Features

Batch apply templates and sync edits: In the filmstrip (at the bottom), select multiple photos (hold the Cmd key and click), then apply a template, and that template will be applied to all selected photos at once. After editing one photo, right-click its thumbnail and select “Sync edits to selected photos” to quickly copy the adjustment parameters.
Create and save custom templates: After completing satisfactory adjustments to a photo, at the bottom of the “Templates” panel on the left, click the “+” sign, select “Create template from current edit,” give it a name and categorize it. After that, you can apply it to other photos with one click.
Advanced compositing for AI sky replacement: After replacing the sky, use the “Details” slider in “Global Sky Adjustments” to restore cloud detail in the new sky that has been over-softened. Combined with the mask tool, you can manually erase or restore the replacement effect at the boundary between the sky and foreground objects.
Local control for Portrait AI: Use the “Mask” feature in “Portrait AI” to specify that adjustments apply only to specific areas such as skin, eyes, and mouth, achieving more precise retouching.

IV. Common Issues and Solutions

Issue	Possible Cause	Solution
Software runs slowly or is sluggish	1. Editing extremely high-resolution photos (e.g., 60 megapixels) simultaneously. 2. Insufficient Mac hardware configuration (especially memory). 3. Running multiple large applications at the same time.	1. In “Preferences > Performance,” try lowering the “Image Preview Quality.” 2. Ensure both macOS and Luminar AI are updated to the latest versions. 3. Close other unnecessary applications to free up memory.
AI Sky Replacement fails to detect the sky or edges look unnatural	1. The original sky area is too small, too bright, or has low contrast with the foreground. 2. Complex objects in the foreground (e.g., tree branches) penetrate the sky area.	1. Manually use the “Brush” tool in “Masking” to add (+) or erase (-) sky areas. 2. Fine-tune the “Shift” and “Blur” sliders in “Sky Positioning” to make the composite more natural.
Portrait AI fails to detect faces	1. The face is too small, in profile, or partially obscured. 2. Extremely poor lighting conditions.	1. Try zooming in on the photo or ensuring the face is clearly visible. 2. If AI still cannot detect it, manually use the “Brush Mask” to select the face area, then apply tools such as “Skin AI.”
Exported photo colors do not match the in-app preview	Color management issue, possibly due to export settings or other display software not supporting the color profile.	1. In the export dialog, ensure the “Color Profile” option is correct (typically sRGB is suitable for web sharing). 2. Check whether the color profile is correctly calibrated in macOS “Display Settings.”

V. Luminar AI for Mac Keyboard Shortcuts Summary

Function	Shortcut (Mac)	Description
Open Photo	`Cmd + O`	Open the file selection dialog
Close Current Photo	`Cmd + W`	Close the current editing window
Export Photo	`Cmd + E`	Open the export dialog
Undo	`Cmd + Z`	Undo the previous action
Redo	`Cmd + Shift + Z`	Redo the undone action
Toggle Before/After Comparison	`Y`	Switch between before and after editing views
Reset Slider	Double-click the slider	Reset the current tool’s slider to its default value
Zoom In/Out View	`Cmd + Plus` / `Cmd + Minus`	Scale the canvas view
Fit to Screen	`Cmd + 0`	Scale the photo to fit the window
100% Actual Size	`Cmd + 1`	View the photo at 100% scale
Toggle Tool Panels	`Tab`	Show/hide the left and right side panels
Copy Edit Settings	`Cmd + C` (on the photo thumbnail)	Copy the current photo’s edit settings
Paste Edit Settings	`Cmd + V` (on the target photo thumbnail)	Paste the copied edit settings to the selected photo

Tip: Mastering the above shortcuts and workflow can greatly improve your editing efficiency in Luminar AI. It is recommended to start by getting familiar with the interface through the AI templates, then gradually explore each individual AI tool and combine them with masks to achieve creative control.