Image Tools
Sharp Stock integrates commonly used image preprocessing tools for artists and planners, allowing for quick processing and optimization of assets without the need to open heavy design software.
1. Functional Tools Description
When you select a supported bitmap format (such as PNG, JPG, WebP), the following processing tools will automatically appear in the right detail panel:
- Lossless Rotation: Supports rapid clockwise or counter-clockwise 90° rotation.
- Mirror Flip: Provides mirroring in both horizontal and vertical dimensions.
- Resize:
- Custom Specs: Supports manual entry of target width and height.
- Aspect Ratio Lock: Aspect ratio locking is enabled by default to ensure images are not stretched or distorted.
- Quick Presets: Provides one-click conversion to common sizes such as 128px, 256px, and 1024px.
- Tinify (TinyPNG):
- Integrates the TinyPNG professional compression algorithm to maximally optimize file size while maintaining visual quality.

2. Core Functional Features
- Efficient Local Processing: Operations are performed directly on physical disk files, resulting in extremely fast processing speeds.
- Saving Strategy:
- Overwrite Mode: Rotation and flip operations directly modify the original file.
- Derivation Mode: Resizing and Tinify compression will generate new files with a suffix by default to protect the original assets.
- Sync Preview Refresh: Once processing is complete, the preview in the detail panel will update immediately for effect confirmation.
3. Operation Guide
Resizing Images
- Click the "Resize" button to open the configuration dialog.
- Enter the target width; if "Aspect Ratio Lock" is on, the height will adjust automatically.
- Confirm the naming format for the new file.
- Click "Apply" to generate the new sized asset.

4. Notes
- Image Quality Note: Rotation and flipping are completely lossless for PNG format; for JPG format, frequent repeated rotations may cause minimal quality changes.
- Service Configuration: Before using the Tinify compression function, you need to configure your API Key in Settings.
- Asset Support Scope: This tool is specifically for original image assets. For Spine animations or aggregated Sprites assets, editing must be done on their associated underlying images.