diff --git a/theme/src/client/composables/watermark.ts b/theme/src/client/composables/watermark.ts
new file mode 100644
index 00000000..681ef911
--- /dev/null
+++ b/theme/src/client/composables/watermark.ts
@@ -0,0 +1,17 @@
+import { defineWatermarkConfig } from '@vuepress/plugin-watermark/client'
+import { computed } from 'vue'
+import { usePageFrontmatter } from 'vuepress/client'
+import type { PlumeThemePageFrontmatter } from '../../shared/index.js'
+
+declare const __PLUME_WM_FP__: boolean
+
+export function setupWatermark(): void {
+  const frontmatter = usePageFrontmatter<PlumeThemePageFrontmatter>()
+
+  defineWatermarkConfig(computed(() => {
+    const disableFullPage = typeof frontmatter.value.watermark === 'object' && frontmatter.value.watermark.fullPage === false
+    return {
+      parent: !__PLUME_WM_FP__ || disableFullPage ? '.plume-content' : 'body',
+    }
+  }))
+}