Adobe Photoshop 2020 for Mac: A Detailed Operation Guide

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Adobe Photoshop 2020 is professional image processing software released by Adobe, offering powerful digital image editing, compositing, and design capabilities on the Mac platform. This guide will walk you through its core interface, complete workflow, and efficient operation tips in detail.

I. Detailed Explanation of the Software’s Core Interface and Workspace

After launching Photoshop 2020, you will see a core workspace composed of multiple panels and areas.

• Menu Bar: Located at the top of the screen, it contains all major command categories such as “File,” “Edit,” “Image,” and “Layer.”
• Options Bar: Located below the Menu Bar, its content changes dynamically based on the currently selected tool and is used to set the specific parameters of the tool.
• Tools Panel: Located on the left side of the interface by default, it gathers all image processing tools, such as the Move Tool, Marquee Tool, Brush Tool, and more. A small triangle in the lower-right corner of a tool indicates a hidden tool group.
• Document Window: The central area that displays the image file currently being edited. Each opened file appears as a tab.
• Panels: By default, they are stacked on the right side of the interface, for example:
  • Layers Panel: Manages all layers, groups, and layer effects of an image, and is the core of compositing.
  • Color/Swatches Panel: Used to select and store colors.
  • Properties Panel: Displays the detailed properties of the currently selected layer or object, which can be adjusted.
  • History Panel: Records operation steps and allows you to revert to a previous state.
• Workspace Switcher: Located in the upper right corner, it provides preset interface layouts such as “Photography,” “Painting,” and “Web,” and can quickly optimize panel arrangement to suit different tasks.

II. Complete Workflow from Creation to Export

1. Create or Open a Project

Step 1: Launch the software. Double-click the Adobe Photoshop 2020 icon in the “Applications” folder.

Step 2: Create a new file.

• Method: Click the menu bar File > New... or use the shortcut Cmd + N.
• Operation: In the pop-up “New Document” dialog box, you can preset the size (such as A4, Web), set the width, height, resolution, color mode, etc. Click the “Create” button.

Step 3: Open an existing file.

• Method: Click the menu bar File > Open... or use the shortcut Cmd + O.
• Action: In the Finder window, select the image file you need to edit and click “Open”.

2. Basic Image Editing and Compositing

Step 4: Import assets. Place other images into the current document as new layers: drag image files directly from Finder into the Photoshop document window, or use File > Place Embedded....

Step 5: Edit with tools.

• Move and Transform: Select the “Move Tool (V)” in the toolbar and click a layer to move it. Press Cmd + T to enter Free Transform; drag the control handles to scale and rotate. Press Enter to confirm the transformation.
• Selection and Cutout: Use the “Quick Selection Tool (W)” or “Pen Tool (P)” to create a selection, then press Cmd + J to copy the selected content to a new layer, or press Delete to remove the background.
• Painting and Retouching: Select the “Brush Tool (B)”, set the brush size, hardness, and opacity in the options bar, and paint on the canvas. Use the “Clone Stamp Tool (S)” to repair image blemishes.

Step 6: Adjust color and effects.

• Method 1 (Non-destructive adjustment): Click the “Create new fill or adjustment layer” icon (half-black, half-white circle) at the bottom of the Layers panel, and choose commands such as “Curves” and “Hue/Saturation”. Adjusting the parameters will generate a separate adjustment layer that you can modify at any time.
• Method 2 (Apply Directly): Select commands such as Image > Adjustments > Brightness/Contrast... from the menu bar, and the effect will be applied directly to the currently selected layer.

Step 7: Manage layers. In the Layers panel, you can drag layers to change their stacking order, click the eye icon to hide/show a layer, and double-click a layer name to rename it. Use layer groups (the folder icon) to organize and manage layers in complex projects.

3. Save and Export Your Work

Step 8: Save the project file.

• Method: Click File > Save in the menu bar (for the first save) or File > Save As...; the shortcuts are Cmd + S or Cmd + Shift + S.
• Action: Choose a save location, and be sure to select the Photoshop (*.PSD) format to preserve all layers and editability. Click “Save.”

Step 9: Export as a universal image format.

• Method: Click File > Export > Quick Export as PNG in the menu bar, or File > Export As... for more detailed settings.
• Action: In the “Export As” dialog box, you can choose the format (e.g., JPEG, PNG, GIF) and adjust the image size and quality. When finished, click “Export All” and select the destination folder.
• Quick export shortcut: Cmd + Shift + Option + W (must be enabled in “Preferences > Export”).

III. Advanced Tips for Common Features

• Non-Destructive Editing Workflow: Make good use of adjustment layers, layer masks, and smart objects. After converting a layer to a smart object (right-click the layer > Convert to Smart Object), you can scale, apply filters, and perform other operations on it with lossless modifications at any time.
• Advanced Selections and Masks: In the “Select and Mask” workspace (accessible via the options bar of any selection tool), use the “Edge Detection” and “Decontaminate Colors” features to achieve extremely natural and precise cutouts of hair or complex edges.
• Content-Aware Fill: Use the marquee tool to select the object you want to remove, press Shift + Delete to bring up the Fill dialog, and choose “Content-Aware.” The software will automatically fill the selection intelligently based on surrounding pixels.
• Actions and Batch Processing: In the “Actions” panel, you can record a series of operations (such as resizing, applying filters, converting formats), then use File > Automate > Batch to apply these actions to all images in an entire folder, achieving automation.

IV. Common Problems and Solutions

V. Photoshop 2020 for Mac Keyboard Shortcuts Summary