Source: 爱上MAC | Software download link: ON1 Resize 2021 for Mac
ON1 Resize 2021 for Mac is a professional software dedicated to high-quality lossless image enlargement and size adjustment. Built on the industry-renowned Genuine Fractals technology, it allows photographers and designers to enlarge images several times or even dozens of times without losing image quality, while preserving rich detail, sharp edges, and natural textures. This guide will provide an in-depth analysis of its interface, complete workflow, and efficient usage tips.
I. Detailed Overview of the Core Interface and Workspace
After launching ON1 Resize 2021, the main interface is divided into the following core areas:
- Top Menu Bar and Toolbar: Includes standard menus such as File, Edit, and View. The toolbar provides quick access to tools such as the “Magnifier,” “Hand,” and “Crop.”
- Left Panel Area:
- “Folders” Browser: Used to browse and select image folders on the local Mac disk.
- “Filters” Panel: Integrates other functional modules from the ON1 series, such as Effects and Portrait, but these are not essential in the core Resize workflow.
- Central Image Preview Area: Displays the image currently being edited. At the bottom, there is a preview scale slider and a “Preview” button, used to view the effect after adjusting the dimensions.
- Right-Side Adjustment Panel Area: This is the core workspace, including:
- “Adjust” Panel: The core dimension adjustment parameter settings area.
- “Details” Panel: Used to adjust sharpening and noise reduction to optimize image quality after enlargement.
- “Metadata” Panel: View and edit image EXIF and other information.
- Bottom Queue/Batch Processing Area: When performing batch processing, all images to be processed will be listed here, along with the processing progress.
II. Complete Workflow: From Opening to Exporting
Step 1: Create/Open a Project (Import Images)
Method 1: Via Menu/Shortcut
Click the menu bar File > Open... or directly use the shortcut Command + O, then select one or more image files in the dialog window to open them.
Method 2: Via Folder Browser
In the “Folders” panel on the left, navigate to the target folder and double-click an image thumbnail within it to open it in the central preview area.
Method 3: Drag and Drop
Directly drag image files from Finder to the central preview area or the bottom batch processing area of ON1 Resize.
Step 2: Set the resizing parameters
In the “Adjust” panel on the right, configure the core settings:
- Choose the resize basis:
- “Percentage”: Directly enter the percentage by which you want to enlarge or shrink the image.
- “Print Size”: Enter the target physical dimensions (such as inches or centimeters), resolution (DPI), and resampling method.
- “Pixel Dimensions”: Directly enter the target image’s width and height in pixels.
- Lock aspect ratio: Make sure the chain icon is in the “closed” state to preserve the image’s original proportions.
- Choose the “resampling method”: This is key. For enlarging, it is strongly recommended to select
Genuine Fractals 8or one of its sub-options (such as “Maximum Detail”), as this is the software’s core algorithm.
After configuring, click the “Preview” button at the bottom of the panel, or press Command + R, to generate a preview of the resized image in the central window. Use the slider at the bottom to compare the before and after results.
Step 3: Optimize image details (optional but recommended)
Switch to the “Detail” panel:
- Sharpening: Enlarged images may become soft. Use the “Sharpening” slider to moderately increase clarity. You can use the “Mask” slider (hold the Option key and drag) to control the edge areas where sharpening is applied.
- Noise Reduction: If noise appears after enlarging, you can appropriately use the “Reduce Color Noise” and “Reduce Luminance Noise” sliders.
Step 4: Export the Final Image
After completing all adjustments, export the file:
- Click the menu bar
File > Export...or use the shortcutCommand + E. - In the export dialog that appears:
- Set Save Location: Choose the target folder.
- Name the File: You can use the original filename or add a suffix.
- Choose File Format: Usually TIFF (preserves best quality) or JPEG (for web sharing).
- Set Format Options: Such as JPEG quality, TIFF compression method, etc.
- Adjust Image Size (Secondary Confirmation): This will display the dimensions you previously set, allowing for final fine-tuning.
- Click the “Export” button in the bottom right corner of the dialog to complete single image processing.
Batch Export: If multiple images are open, check the files you need to export in the list on the left side of the export dialog, then apply the above settings to export them all at once.
III. Advanced Tips for Common Features
- Side-by-Side Comparison and Split View: At the bottom of the central preview area, click the “Split View” icon (two overlapping rectangles) to compare before and after adjustments side by side or top and bottom. Drag the divider in the middle to adjust the comparison area.
- Use Presets for Quick Adjustments: At the top of the “Adjust” panel, click the “Presets” drop-down menu to select from a variety of built-in common output size presets (such as “Enlarge to 200%”, “Poster Print 16×20 inches”), greatly improving efficiency.
- Create Custom Presets: After adjusting all parameters, click the “+” sign in the upper right corner of the “Adjust” panel to save the current settings as a custom preset for easy reuse in the future.
- Use the Masking Feature in the “Details” Panel: When sharpening, hold the
Optionkey on your keyboard while dragging the “Masking” slider. The preview area will display a black-and-white mask (white areas are the regions being sharpened), allowing you to precisely control sharpening to apply only to edges and textures, avoiding amplified noise.
IV. Common Problems and Solutions
| Symptom | Possible Cause | Solution |
|---|---|---|
| Image is blurry after enlargement, with loss of detail | The correct resampling method was not used; the original image quality is too low. | 1. In the “Adjust” panel, make sure the “Resampling Method” is set to one of the “Genuine Fractals 8” series options. 2. Try moderately increasing sharpening in the “Details” panel. 3. Understand that the software has physical limits; be conservative when enlarging extremely low-pixel source files by large factors. |
| Exported file size is unusually large | The export format selected was uncompressed TIFF. | In the “Format Options” of the export dialog, select “LZW” or “ZIP” compression for the TIFF format (both are lossless compression), which can greatly reduce file size without losing quality. |
| Software runs slowly or lags | The image being processed is extremely large; insufficient available memory on the Mac. | 1. Close other applications that are using a large amount of memory. 2. In ON1 Resize’s “Preferences” ( ON1 Resize > Preferences...), check the “Performance” settings to ensure the software can use enough memory.3. Try processing large numbers of images in batches. |
| Unable to maintain crop aspect ratio | When using the “Crop” tool, the width-to-height ratio was accidentally unlocked. | Click the chain icon in the crop tool options bar to close it, or select a fixed ratio (such as 4×5, 8×10) from the adjacent drop-down menu. |
V. ON1 Resize 2021 for Mac Keyboard Shortcuts Summary
| Function Category | Action | Shortcut (Mac) |
|---|---|---|
| File Operations | Open Image | Command + O |
| Close Current Image | Command + W |
|
| Export Image | Command + E |
|
| Quit Application | Command + Q |
|
| View & Preview | Actual Pixels (100% Zoom) | Command + 1 |
| Fit to Screen | Command + 0 |
|
| Generate/Refresh Preview | Command + R |
|
| Editing & Adjustment | Copy Settings | Command + C (when the adjustment panel is active) |
| Paste Settings | Command + V (when the adjustment panel is active) |
|
| Reset Panel Parameters | Double-click any slider on the panel | |
| Tool Operations | Temporarily switch to Hand tool (under any tool) | Hold Spacebar |
| Zoom In/Out View | Command + + / Command + - |
|
| Auxiliary Features | Show sharpening mask in the “Details” panel | Hold the Option key and drag the “Mask” slider |
Note: ON1 Resize 2021 can run as a standalone application or be integrated as a plugin into Adobe Photoshop and Lightroom. When used as a plugin, its core interface and operation logic are basically the same as the standalone version, but the launch and export processes are slightly different and need to be invoked within the host software.







