> ## Documentation Index > Fetch the complete documentation index at: https://docs.goenhance.ai/llms.txt > Use this file to discover all available pages before exploring further. # Watermark Remover > Automatically detect and remove watermarks, logos and text overlays from an image. Watermark regions are detected and then filled in with matching background; the rest of the image is left untouched and the output keeps the original size. **Pricing:** 1 token per image (= $0.02), regardless of image size. **Input and output:** - `image_url` must be an `https://` link that is publicly reachable. - The output format follows the input: PNG, JPG and WebP keep their format; other formats (for example BMP) are returned as PNG. **Tuning detection:** - `detection_prompt` describes what to remove. The default `watermark` covers most stock-photo and AI-generator marks; naming the mark (for example `Sora logo` or `Getty Images`) helps when it is small or blends into the background. - `max_bbox_percent` ignores any detected region larger than this share of the image, so a false positive cannot erase a large part of the picture. Raise it only for watermarks that really cover a big area. Returns an `img_uuid`; poll GET /api/v1/jobs/detail (or use `custom_callback_url`) to get the cleaned image. ## OpenAPI ````yaml api-reference/image-api/openapi-watermark-remover.json POST /api/v1/images/generations openapi: 3.1.0 info: title: GoEnhance API - Watermark Remover description: Watermark Remover version: 1.0.0 servers: - url: https://api.goenhance.ai security: [] paths: /api/v1/images/generations: post: tags: - ImageAPI summary: Watermark Remover description: >- Automatically detect and remove watermarks, logos and text overlays from an image. Watermark regions are detected and then filled in with matching background; the rest of the image is left untouched and the output keeps the original size. **Pricing:** 1 token per image (= $0.02), regardless of image size. **Input and output:** - `image_url` must be an `https://` link that is publicly reachable. - The output format follows the input: PNG, JPG and WebP keep their format; other formats (for example BMP) are returned as PNG. **Tuning detection:** - `detection_prompt` describes what to remove. The default `watermark` covers most stock-photo and AI-generator marks; naming the mark (for example `Sora logo` or `Getty Images`) helps when it is small or blends into the background. - `max_bbox_percent` ignores any detected region larger than this share of the image, so a false positive cannot erase a large part of the picture. Raise it only for watermarks that really cover a big area. Returns an `img_uuid`; poll GET /api/v1/jobs/detail (or use `custom_callback_url`) to get the cleaned image. parameters: - name: Authorization in: header description: '' required: false example: '{{Authorization}}' schema: type: string requestBody: content: application/json: schema: type: object properties: model: type: string enum: - watermark-remover description: Model name. Must be `watermark-remover`. image_url: type: string format: uri minLength: 1 description: >- URL of the image to clean. Must be an `https://` link that is publicly reachable. detection_prompt: type: string maxLength: 200 default: watermark description: >- What to detect and remove, in English. Defaults to `watermark`. Naming the mark (for example `Sora logo` or `Getty Images`) improves detection of small or low-contrast watermarks. max_bbox_percent: type: number exclusiveMinimum: 0 maximum: 100 default: 10 description: >- Largest region to remove, as a percentage of the image area. Detected regions above this size are treated as false positives and left untouched. Defaults to `10`. custom_callback_url: type: string format: uri description: >- Optional. A publicly accessible HTTPS URL. When the task status changes (processing / success / failed), GoEnhance sends a POST request to this URL. The request body is identical to the response of GET /api/v1/jobs/detail. If your server does not respond with HTTP 200, the notification is retried up to 3 times, with a 3-second timeout per attempt. example: https://your-server.com/goenhance/callback required: - model - image_url example: model: watermark-remover image_url: https://your-cdn.com/photo.jpg detection_prompt: watermark responses: '200': description: '' content: application/json: schema: type: object properties: code: type: integer msg: type: string data: type: object properties: img_uuid: type: string cost: type: number description: >- Tokens deducted for this request. This is the amount actually charged, so it already reflects any discount active on your account and can be lower than the listed price. Tokens are deducted when the task is accepted, and refunded automatically if the generation ends in failure. example: 1 required: - img_uuid - cost required: - code - msg - data examples: '1': summary: Success value: code: 0 msg: Success data: img_uuid: c12b656c-747a-44fd-9c80-add79b0c52d5 cost: 1 '2': summary: Image URL is not https value: code: -1 msg: image_url must be an https:// link '3': summary: Insufficient tokens value: code: 100 msg: tokens is not enough quota: summary: API key quota exceeded value: code: 101 msg: 'API key quota exceeded: 4990 of 5000 tokens used (monthly)' headers: {} '401': description: '' content: application/json: schema: type: object properties: code: type: integer msg: type: string required: - code - msg headers: {} deprecated: false security: [] ````