Canvas background parameters

Set canvas background color and background image per render with canvas parameters.

Updated Mar 27, 2026

In addition to the dynamic parameters you set on individual elements, every template has two canvas-level properties you can override via the API.

Canvas Parameters#

Parameter	Type	Description
`canvasBackgroundColor`	`string`	Background color for the canvas. Supports HEX, RGBA, and linear-gradient
`canvasBackgroundImage`	`string`	Background image URL (must be publicly accessible)

Example#

JSON

{
  "templateId": "your-template-id",
  "modifications": {
    "title": "Hello World",
    "canvasBackgroundColor": "linear-gradient(135deg, #667eea 0%, #764ba2 100%)",
    "canvasBackgroundImage": "https://example.com/bg-pattern.png"
  },
  "response": {
    "format": "png",
    "type": "url"
  }
}

For complete API documentation including all endpoints and parameters, see the API Reference.

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