diff --git a/src/hooks/web/useWatermark.ts b/src/hooks/web/useWatermark.ts
deleted file mode 100644
index 45f6b6d..0000000
--- a/src/hooks/web/useWatermark.ts
+++ /dev/null
@@ -1,108 +0,0 @@
-import type { Ref } from 'vue'
-import { getCurrentInstance, onBeforeUnmount, ref, shallowRef, unref } from 'vue'
-import { useRafThrottle } from '@/utils/domUtils'
-import { addResizeListener, removeResizeListener } from '@/utils/event'
-import { isDef } from '@/utils/is'
-
-const domSymbol = Symbol('watermark-dom')
-const sourceMap = new WeakMap<HTMLElement, object>()
-
-export function useWatermark(appendEl: Ref<HTMLElement | null> = ref(document.body)) {
-  const appendElRaw = unref(appendEl)
-  if (appendElRaw && sourceMap.has(appendElRaw))
-    return sourceMap.get(appendElRaw)
-
-  const func = useRafThrottle(() => {
-    const el = unref(appendEl)
-    if (!el)
-      return
-    const { clientHeight: height, clientWidth: width } = el
-    updateWatermark({ height, width })
-  })
-  const id = domSymbol.toString()
-  const watermarkEl = shallowRef<HTMLElement>()
-
-  const clear = () => {
-    const domId = unref(watermarkEl)
-    watermarkEl.value = undefined
-    const el = unref(appendEl)
-    if (!el)
-      return
-    domId && el.removeChild(domId)
-    removeResizeListener(el, func)
-  }
-
-  function createBase64(str: string) {
-    const can = document.createElement('canvas')
-    const width = 300
-    const height = 240
-    Object.assign(can, { width, height })
-
-    const cans = can.getContext('2d')
-    if (cans) {
-      cans.rotate((-20 * Math.PI) / 120)
-      cans.font = '15px Vedana'
-      cans.fillStyle = 'rgba(0, 0, 0, 0.15)'
-      cans.textAlign = 'left'
-      cans.textBaseline = 'middle'
-      cans.fillText(str, width / 20, height)
-    }
-    return can.toDataURL('image/png')
-  }
-
-  function updateWatermark(
-    options: {
-      width?: number
-      height?: number
-      str?: string
-    } = {},
-  ) {
-    const el = unref(watermarkEl)
-    if (!el)
-      return
-    if (isDef(options.width))
-      el.style.width = `${options.width}px`
-
-    if (isDef(options.height))
-      el.style.height = `${options.height}px`
-
-    if (isDef(options.str))
-      el.style.background = `url(${createBase64(options.str)}) left top repeat`
-  }
-
-  const createWatermark = (str: string) => {
-    if (unref(watermarkEl)) {
-      updateWatermark({ str })
-      return id
-    }
-    const div = document.createElement('div')
-    watermarkEl.value = div
-    div.id = id
-    div.style.pointerEvents = 'none'
-    div.style.top = '0px'
-    div.style.left = '0px'
-    div.style.position = 'absolute'
-    div.style.zIndex = '100000'
-    const el = unref(appendEl)
-    if (!el)
-      return id
-    const { clientHeight: height, clientWidth: width } = el
-    updateWatermark({ str, width, height })
-    el.appendChild(div)
-    sourceMap.set(el, { setWatermark, clear })
-    return id
-  }
-
-  function setWatermark(str: string) {
-    createWatermark(str)
-    addResizeListener(document.documentElement, func)
-    const instance = getCurrentInstance()
-    if (instance) {
-      onBeforeUnmount(() => {
-        clear()
-      })
-    }
-  }
-
-  return { setWatermark, clear }
-}