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---
description: "將文字浮水印燒錄到影片畫面上。"
i18n_source_hash: 937bb075b894
i18n_provenance: human
i18n_output_hash: c752499f18db
---
# Watermark Video {#watermark-video}
將文字浮水印燒錄到影片的每一個畫面上,並可設定位置、大小、不透明度和顏色。
## API Endpoint {#api-endpoint}
`POST /api/v1/tools/video/watermark-video`
接受包含一個影片檔案和一個 JSON `settings` 欄位的 multipart form data。
## Parameters {#parameters}
| Parameter | Type | Required | Default | Description |
|-----------|------|----------|---------|-------------|
| text | string | Yes | - | 浮水印文字(1-200 個字元) |
| position | string | No | `"br"` | 在畫面上的位置:`tl``tc``tr``l``c``r``bl``bc``br` |
| fontSize | integer | No | `36` | 字型大小(以像素為單位,8-120) |
| opacity | number | No | `0.5` | 浮水印不透明度(0.05-1) |
| color | string | No | `"#ffffff"` | 文字的十六進位色碼(例如 `"#ffffff"` |
### Position Values {#position-values}
- **tl** - 左上,**tc** - 上方置中,**tr** - 右上
- **l** - 左方置中,**c** - 置中,**r** - 右方置中
- **bl** - 左下,**bc** - 下方置中,**br** - 右下
## Example Request {#example-request}
```bash
curl -X POST http://localhost:1349/api/v1/tools/video/watermark-video \
-H "Authorization: Bearer si_your-api-key" \
-F "file=@clip.mp4" \
-F 'settings={"text": "PREVIEW", "position": "c", "fontSize": 48, "opacity": 0.3}'
```
## Example Response {#example-response}
```json
{
"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/clip.mp4",
"originalSize": 12500000,
"processedSize": 12400000
}
```
## Notes {#notes}
- 浮水印會永久渲染到影片畫面中,處理後無法移除。
- 浮水印使用 FFmpeg 內建的無襯線字型。
- 若需要圖片浮水印,請改用圖片 Watermark 工具。