Repix Pro is a professional-grade creative image editing and artistic processing software designed specifically for macOS. It goes beyond traditional filter apps by combining advanced algorithms with intuitive brush controls, enabling users to perform deep artistic reconstruction of photos in a painting-like manner, easily transforming ordinary photos into artworks with styles such as oil painting, sketch, and watercolor.

I. Detailed Explanation of the Core Interface and Workspace

After launching Repix Pro, you will see a clean and feature-focused user interface, mainly divided into the following areas:

Top Menu Bar and Toolbar: Includes file operations (new, open, save), editing commands (undo, redo), canvas controls (zoom, fit to screen), and core tool selection (such as brush, eraser, effects library).
Left Tool Panel: Vertically arranged core editing tool icons, typically including from top to bottom:
- Selection Tool: Used to select specific image areas for local editing.
- Brush Tool: The core tool for applying artistic effects, whose properties can be adjusted in the right panel.
- Eraser Tool: Erases applied effects and restores the image to its original state.
- Effects Library Browser: Click to open or hide the effects library panel on the right.
Right-side Properties/Effects Library Panel: This is the core area of the software, and its content changes with the selected tool.
- When the Brush Tool is selected, this area displays sliders for brush size, opacity, flow, hardness, and other properties, as well as “Advanced” options (such as color jitter and scatter).
- When the Effects Library icon is clicked, this area switches to a vast collection of effect presets, displayed in categories with thumbnail images (such as “Oil Paint,” “Pixelate,” “Texture,” “Light & Shadow,” etc.). Clicking any effect loads it onto the current brush.
Central Canvas Workspace: Displays the image currently being edited. Supports gesture zoom (pinch) and pan (two-finger drag).
Bottom Status Bar/Layers Panel: Displays the canvas zoom ratio and document information. In advanced editing mode, a layer management interface may be displayed, allowing users to apply effects on different layers for non-destructive editing.

II. Complete Workflow: From Import to Export

1. Create/Open a Project

Steps:

Launch Repix Pro.
To open an existing image, perform any of the following:
- Use the menu bar: File > Open... (shortcut Cmd + O).
- Drag and drop image files directly from Finder onto the central canvas area of the software.
The software will automatically create a new project with that image, and the canvas will be your image.

2. Basic Adjustments and Composition

Before applying artistic effects, you can make basic adjustments.

Steps:

In the menu bar, select Edit > Adjust to find tools such as crop, rotate, and basic color adjustments (brightness, contrast, saturation).
Use the Crop Tool to recompose. Drag the crop box edges to adjust, press the Return key to confirm, and the Esc key to cancel.

3. Apply Artistic Effects (Core Workflow)

Steps:

Select an effect: Click the Effects Library Browser icon in the left toolbar to open the effects library panel on the right. Browse or search categories, and click the thumbnail of the desired effect (e.g., “Impressionist Oil Painting”). The effect will be immediately applied to the current brush.
Configure the brush: Make sure the Brush Tool in the left toolbar is selected. In the properties panel on the right, adjust:
- Size: Use the slider, or use the shortcuts [ to decrease and ] to increase.
- Opacity: Controls the intensity of the applied effect.
- Flow: Controls the speed at which the effect accumulates as you paint.
Painting the Effect: On the canvas, press and hold on the trackpad or left-click with the mouse to brush over the image as if painting. The areas the brush passes over will be converted in real time to the selected artistic style.
Tip: For large areas, you can increase the brush size to paint quickly; for detailed edges (such as portrait hair or architectural outlines), you should reduce the brush size for fine detailing.
Local Correction and Erasing:
- Switch to the Eraser tool (shortcut E) to erase areas where the effect was over-applied or is unsatisfactory, revealing the underlying image.
- Use Cmd + Z to undo the previous action, and Cmd + Shift + Z to redo.
Stacking Multiple Effects: Repeat steps a-d to select different effect brushes and stack them on the image. For example, you can first apply a basic oil painting effect, then select the “Canvas Texture” effect to add texture locally, and finally use the “Glow” effect to brighten the highlight areas.

4. Final Adjustments and Confirmation

Steps:

Use the Zoom tool (shortcut Z) or gestures to inspect image details.
In the menu bar under Edit > Final Adjustments, you may find global fine-tuning options such as “Sharpen” and “Vignette”; apply them as needed.
Once satisfied, you can save the project for future editing.

5. Export the Final Work

Steps:

Go to the menu bar: File > Export... (shortcut Cmd + Shift + E).
In the dialog that appears:
- Set the format for the exported file (usually JPEG, PNG, or TIFF).
- Adjust the quality slider (for JPEG) or choose the bit depth (for PNG/TIFF).
- Choose the save location.
Click the “Export” button to finish.

III. Advanced Tips for Common Features

Non-destructive editing and layers: In project modes that support layers, duplicate a copy for the background layer and apply effects to the copy. This way, the original image is always preserved, and you can hide or modify the effect layer at any time.
Combining brush flow and opacity: Set a lower opacity (e.g., 30%) and a higher flow (e.g., 80%) to repeatedly paint over the same area and gradually build up the effect, achieving smoother transitions.
Selective coloring: First apply a black-and-white or desaturation effect to the entire image, then switch to the eraser tool, lower its opacity, and carefully erase the subject area to restore some of its original color, creating a visual focal point.
Custom Effect Combinations: After applying an effect (such as “Coarse Linen Texture”) to the canvas, do not deselect it; immediately select another effect (such as “Color Overlay”) from the effects library, and they will blend in a certain mode. Try combinations in different orders to create unique styles.
Use Gestures to Improve Efficiency: On the canvas, pinch with two fingers to zoom, and drag with two fingers to pan. When adjusting brush size, in addition to keyboard shortcuts, you can also hold the Ctrl + Option keys and drag left or right with the mouse/trackpad.

IV. Common Problems and Solutions

Symptom	Possible Cause	Solution
Brush effects do not respond or lag	1. Image resolution is too high. 2. Brush properties (such as scatter and texture) are set too complexly. 3. The software needs more system resources.	1. Try appropriately lowering the image resolution before editing again. 2. Simplify advanced brush settings, or use the default brush first. 3. Close other applications that use a large amount of memory, and make sure Repix Pro is the main foreground application.
After a mistaken operation, you want to restore part of the image to its original state	Over-painting or using the wrong effect.	1. Immediately use `Cmd + Z` to undo. 2. Use the Eraser tool to erase carefully. 3. If the operation was performed on a separate layer, you can directly hide or delete that layer.
Exported image quality is poor, with jagged edges or blurriness	1. The export format (such as JPEG) quality setting is too low. 2. Improper scaling was performed during export.	1. When exporting, choose high-quality JPEG (90% or above) or a lossless format (PNG, TIFF). 2. Make sure the export size matches the original canvas size; do not blindly enlarge it.
Presets in the effects library are displayed incompletely or categories are mixed up	The software interface zoom or panel layout was accidentally adjusted.	1. Try clicking the category headings at the top of the effects library panel to filter. 2. Go to the menu bar `Window > Reset Workspace` to restore the default interface layout.
Keyboard shortcuts do not work	1. The current input method is in Chinese mode. 2. Conflict with shortcuts of other software. 3. Focus is not on the canvas.	1. Switch to an English input method. 2. Click the canvas area to ensure the software has focus. 3. Check the system shortcut settings (System Preferences > Keyboard > Shortcuts).

V. Repix Pro for Mac Keyboard Shortcuts Overview

Function	Shortcut	Description
New Project	`Cmd + N`	Create based on a blank canvas
Open File	`Cmd + O`	Open an existing image file
Save Project	`Cmd + S`	Save as an editable Repix project file
Export File	`Cmd + Shift + E`	Export as a final image format
Undo	`Cmd + Z`	Undo the previous action
Redo	`Cmd + Shift + Z`	Redo the undone action
Copy	`Cmd + C`	Copy the selection or layer
Paste	`Cmd + V`	Paste clipboard contents
Brush Tool	`B`	Switch to the brush tool
Eraser Tool	`E`	Switch to the eraser tool
Zoom Tool	`Z`	Switch to the zoom tool (click to zoom in, Option+click to zoom out)
Increase Brush Size	`]`	Increase the current brush/eraser size
Decrease Brush Size	`[`	Decrease the current brush/eraser size
Fit Canvas to Screen	`Cmd + 0`	Scale the canvas to fit the window size
Actual Pixel Size	`Cmd + 1`	Scale the canvas to 100% display
Toggle Fullscreen Mode	`Cmd + Ctrl + F`	Enter or exit fullscreen editing mode
Hide/Show Panels	`Tab`	Toggle the display and hiding of all side panels

Note: Some shortcuts may vary slightly due to software version updates. Please refer to the labels in the menu bar of the actual version of Repix Pro you are using.