diff --git a/packages/html/src/getHTMLFromFragment.ts b/packages/html/src/getHTMLFromFragment.ts
index dcc46a931f9..f625e7b77de 100644
--- a/packages/html/src/getHTMLFromFragment.ts
+++ b/packages/html/src/getHTMLFromFragment.ts
@@ -1,10 +1,20 @@
 import { DOMSerializer, Node, Schema } from '@tiptap/pm/model'
 import { createHTMLDocument, VHTMLDocument } from 'zeed-dom'
 
-export function getHTMLFromFragment(doc: Node, schema: Schema): string {
-  const document = DOMSerializer.fromSchema(schema).serializeFragment(doc.content, {
+export function getHTMLFromFragment(doc: Node, schema: Schema, options?: { document?: Document }): string {
+  if (options?.document) {
+    // The caller is relying on their own document implementation. Use this
+    // instead of the default zeed-dom.
+    const wrap = options.document.createElement('div')
+
+    DOMSerializer.fromSchema(schema).serializeFragment(doc.content, { document: options.document }, wrap)
+    return wrap.innerHTML
+  }
+
+  // Use zeed-dom for serialization.
+  const zeedDocument = DOMSerializer.fromSchema(schema).serializeFragment(doc.content, {
     document: createHTMLDocument() as unknown as Document,
   }) as unknown as VHTMLDocument
 
-  return document.render()
+  return zeedDocument.render()
 }