diff --git a/README.md b/README.md
index 7a259605..70f3f48b 100644
--- a/README.md
+++ b/README.md
@@ -193,6 +193,7 @@ In the following table, we list all advanced options for reference:
 | `--prompt`     | [Custom Prompt](https://github.com/Byaidu/PDFMathTranslate/blob/main/docs/ADVANCED.md#prompt)                 | `pdf2zh --prompt [prompt.txt]`                 |
 | `--onnx` | [Use Custom DocLayout-YOLO ONNX model] | `pdf2zh --onnx [onnx/model/path]` |
 | `--serverport` | [Use Custom WebUI port] | `pdf2zh --serverport 7860` |
+| `--dir` | [batch translate] | `pdf2zh --dir /path/to/translate/` |
 
 For detailed explanations, please refer to our document about [Advanced Usage](./docs/ADVANCED.md) for a full list of each option.
 
diff --git a/docs/README_ja-JP.md b/docs/README_ja-JP.md
index b10ef5de..3a8344a0 100644
--- a/docs/README_ja-JP.md
+++ b/docs/README_ja-JP.md
@@ -179,6 +179,7 @@ Python環境を事前にインストールする必要はありません
 | `--prompt` | [カスタムビッグモデルのプロンプトを使用する] | `pdf2zh --prompt [prompt.txt]` |
 | `--onnx` | [カスタムDocLayout-YOLO ONNXモデルの使用] | `pdf2zh --onnx [onnx/model/path]` |
 | `--serverport` | [カスタムWebUIポートを使用する] | `pdf2zh --serverport 7860` |
+| `--dir` | [batch translate] | `pdf2zh --dir /path/to/translate/` |
 
 <h3 id="partial">全文または部分的なドキュメント翻訳</h3>
 
diff --git a/docs/README_zh-CN.md b/docs/README_zh-CN.md
index fae2f27a..9f5f3c3f 100644
--- a/docs/README_zh-CN.md
+++ b/docs/README_zh-CN.md
@@ -181,6 +181,7 @@ set HF_ENDPOINT=https://hf-mirror.com
 | `--prompt` | [使用自定义的大模型prompt] | `pdf2zh --prompt [prompt.txt]` |
 | `--onnx` | [使用自定义的 DocLayout-YOLO ONNX 模型] | `pdf2zh --onnx [onnx/model/path]` |
 | `--serverport` | [使用自定义的 WebUI 端口] | `pdf2zh --serverport 7860` |
+| `--dir` | [文件夹翻译] | `pdf2zh --dir /path/to/translate/` |
 
 <h3 id="partial">全文或部分文档翻译</h3>