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水印(Watermark) ​

通过带样式的段落渲染大号半透明文字水印,适合放在节的页眉或页脚。

导入 ​

ts
import { watermarkPlugin, type WatermarkOptions } from 'docx-kit'

选项 ​

选项类型默认值说明
textstring必填水印文字
alignmentAlignmentTypeCENTER水平对齐
colorstring'BFBFBF'RRGGBB 十六进制文字颜色
fontSizenumber48字号,单位为半磅(48 = 24pt)

示例 ​

基础水印 ​

ts
import { createDocx, watermarkPlugin } from 'docx-kit/node'

const doc = createDocx()
  .use(watermarkPlugin())
  .h1('Confidential Document')
  .p('This document contains proprietary information.')
  .plugin('watermark', { text: 'CONFIDENTIAL' })
  .save('confidential.docx')

红色 DRAFT 水印 ​

ts
const doc = createDocx()
  .use(watermarkPlugin())
  .h1('Work in Progress')
  .p('This document is still under review.')
  .plugin('watermark', {
    text: 'DRAFT',
    color: 'FF0000',
    fontSize: 72, // 36pt
  })
  .save('draft.docx')

左对齐水印 ​

ts
import { AlignmentType } from 'docx'

const doc = createDocx()
  .use(watermarkPlugin())
  .h1('Internal Memo')
  .plugin('watermark', {
    text: 'INTERNAL USE ONLY',
    alignment: AlignmentType.LEFT,
    color: '999999',
  })
  .save('internal.docx')

放入节的页眉或页脚 ​

要为整份文档添加水印,请放入页眉或页脚:

ts
const doc = createDocx()
  .use(watermarkPlugin())

// Render watermark in a footer that applies to all pages
const wm = doc.plugin('watermark', {
  text: 'SAMPLE',
  color: 'D0D0D0',
  fontSize: 60,
})

// Note: The exact header/footer integration depends on
// how sections are configured in your document.

多个水印 ​

ts
const doc = createDocx()
  .use(watermarkPlugin())
  .h1('Review Document')
  .plugin('watermark', { text: 'DRAFT', color: 'FF6600' })
  .p('Please review the following content carefully.')
  .pageBreak()
  .plugin('watermark', { text: 'CONFIDENTIAL', color: 'CC0000' })
  .p('This section contains confidential financial data.')
  .save('multi-watermark.docx')

样式定制 ​

工厂的 { styles } 设置实例默认值,options.styles 覆盖单次调用。插件包与 docx-kit 入口导出 WatermarkConfig 和 WatermarkStyles。优先级:内置/主题默认值 → 初始化 styles → 通用 style → 单次部位 styles。嵌套字段合并,数组整体替换,undefined 沿用默认,0 / false 生效;支持单位与 $colors.primary 等主题 token。

部位样式类型范围
textTextStyleRule文字排版
paragraphParagraphStyleRule段落背景、边框、对齐、间距和分页
ts
watermarkPlugin({
  styles: { text: { color: '#2563EB', fontSize: 14 } },
})

单次调用在 options.styles 中使用相同部位名。JSON DSL、AI 工具 schema 与 MCP 校验共享这些契约;未知部位与放错部位的属性会被拒绝。

Released under the MIT License.