Watermark an Image

curl -X POST https://api.iterationlayer.com/image-generation/v1/generate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "dimensions": { "width": 1200, "height": 800 },
    "layers": [
      {
        "index": 0,
        "type": "image",
        "buffer": "<base64-encoded-photo>"
      },
      {
        "index": 1,
        "type": "text",
        "text": "© 2026 Your Brand",
        "font_name": "Inter",
        "font_size_in_px": 48,
        "text_color": "#FFFFFF",
        "text_align": "center",
        "vertical_align": "center",
        "position": { "x": 0.0, "y": 0.0 },
        "dimensions": { "width": 1200, "height": 800 },
        "opacity": 30,
        "rotation_in_degrees": -30.0
      }
    ],
    "output_format": "png"
  }'

{
  "success": true,
  "data": {
    "buffer": "iVBORw0KGgoAAAANSUhEUgAA...",
    "mime_type": "image/png"
  }
}

import { IterationLayer } from "iterationlayer";
const client = new IterationLayer({ apiKey: "YOUR_API_KEY" });

const result = await client.generateImage({
  dimensions: { width_in_px: 1200, height_in_px: 800 },
  layers: [
    {
      index: 0,
      type: "image",
      buffer: "<base64-encoded-photo>",
    },
    {
      index: 1,
      type: "text",
      text: "\u00a9 2026 Your Brand",
      font_name: "Inter",
      font_size_in_px: 48,
      text_color: "#FFFFFF",
      text_align: "center",
      vertical_align: "center",
      position: { x_in_px: 0, y_in_px: 0 },
      dimensions: { width_in_px: 1200, height_in_px: 800 },
      opacity: 30,
      rotation_in_degrees: -30.0,
    },
  ],
  output_format: "png",
});

const imageBuffer = Buffer.from(result.data.buffer, "base64");

{
  "success": true,
  "data": {
    "buffer": "iVBORw0KGgoAAAANSUhEUgAA...",
    "mime_type": "image/png"
  }
}

import base64

from iterationlayer import IterationLayer
client = IterationLayer(api_key="YOUR_API_KEY")

result = client.generate_image(
    dimensions={"width_in_px": 1200, "height_in_px": 800},
    layers=[
        {
            "index": 0,
            "type": "image",
            "buffer": "<base64-encoded-photo>",
        },
        {
            "index": 1,
            "type": "text",
            "text": "\u00a9 2026 Your Brand",
            "font_name": "Inter",
            "font_size_in_px": 48,
            "text_color": "#FFFFFF",
            "text_align": "center",
            "vertical_align": "center",
            "position": {"x_in_px": 0, "y_in_px": 0},
            "dimensions": {"width_in_px": 1200, "height_in_px": 800},
            "opacity": 30,
            "rotation_in_degrees": -30.0,
        },
    ],
    output_format="png",
)

with open("watermarked.png", "wb") as f:
    f.write(base64.b64decode(result["data"]["buffer"]))

{
  "success": true,
  "data": {
    "buffer": "iVBORw0KGgoAAAANSUhEUgAA...",
    "mime_type": "image/png"
  }
}

package main

import il "github.com/iterationlayer/sdk-go"

client := il.NewClient("YOUR_API_KEY")

result, err := client.GenerateImage(il.GenerateImageRequest{
    Dimensions:   il.Dimensions{WidthInPx: 1200, HeightInPx: 800},
    OutputFormat: "png",
    Layers: []il.Layer{
        il.NewImageOverlayLayer(0, il.FileInput{Buffer: "<base64-encoded-photo>"}),
        il.NewTextLayer(1, "\u00a9 2026 Your Brand", "Inter", 48, "#FFFFFF",
            il.Position{XInPx: 0, YInPx: 0},
            il.Dimensions{WidthInPx: 1200, HeightInPx: 800}),
    },
})

{
  "success": true,
  "data": {
    "buffer": "iVBORw0KGgoAAAANSUhEUgAA...",
    "mime_type": "image/png"
  }
}