Rendering API
- Adjustment
- Animation
- Automatic
- Background Removal
- Blending
- Border & Padding
- Color Palette
- Expiration
- Face Detection
- Fill
- Focal Point Crop
- Format
- Mask Image
- Noise Reduction
- Pixel Density
- Rotation
- Size
- Stylize
- Super Resolution
- Text
- Trim
- Typesetting Endpoint
- Watermark
Text Tracking txt-track
Controls the tracking (or letter spacing) in a text image output by the Typesetting Endpoint.
Default is 0, and negative values are allowed.
txt-track=10 
txt-track=-5 
See the API specification for more information about this parameter's value ranges and format.