diff --git a/mineru/cli/common.py b/mineru/cli/common.py
index 23aaeec7..4eae0de8 100644
--- a/mineru/cli/common.py
+++ b/mineru/cli/common.py
@@ -17,8 +17,6 @@ from mineru.utils.pdf_image_tools import images_bytes_to_pdf_bytes
 from mineru.backend.vlm.vlm_middle_json_mkcontent import union_make as vlm_union_make
 from mineru.backend.vlm.vlm_analyze import doc_analyze as vlm_doc_analyze
 from mineru.backend.vlm.vlm_analyze import aio_doc_analyze as aio_vlm_doc_analyze
-from mineru.backend.hybrid.hybrid_analyze import doc_analyze as hybrid_doc_analyze
-from mineru.backend.hybrid.hybrid_analyze import aio_doc_analyze as aio_hybrid_doc_analyze
 from mineru.utils.pdf_page_id import get_end_page_id
 
 if os.getenv("MINERU_LMDEPLOY_DEVICE", "") == "maca":
@@ -326,6 +324,7 @@ def _process_hybrid(
         server_url=None,
         **kwargs,
 ):
+    from mineru.backend.hybrid.hybrid_analyze import doc_analyze as hybrid_doc_analyze
     """同步处理hybrid后端逻辑"""
     if not backend.endswith("client"):
         server_url = None
@@ -378,8 +377,8 @@ async def _async_process_hybrid(
         server_url=None,
         **kwargs,
 ):
+    from mineru.backend.hybrid.hybrid_analyze import aio_doc_analyze as aio_hybrid_doc_analyze
     """异步处理hybrid后端逻辑"""
-
     if not backend.endswith("client"):
         server_url = None
 
diff --git a/mineru/utils/pdf_image_tools.py b/mineru/utils/pdf_image_tools.py
index 8ff7bdba..591798da 100644
--- a/mineru/utils/pdf_image_tools.py
+++ b/mineru/utils/pdf_image_tools.py
@@ -232,13 +232,17 @@ def images_bytes_to_pdf_bytes(image_bytes):
     # 载入并转换所有图像为 RGB 模式
     image = Image.open(BytesIO(image_bytes))
     # 根据 EXIF 信息自动转正（处理手机拍摄的带 Orientation 标记的图片）
-    ImageOps.exif_transpose(image, in_place=True)
+    image = ImageOps.exif_transpose(image) or image
     # 只在必要时转换
     if image.mode != "RGB":
         image = image.convert("RGB")
 
     # 第一张图保存为 PDF，其余追加
-    image.save(pdf_buffer, format="PDF", save_all=True)
+    image.save(
+        pdf_buffer,
+        format="PDF",
+        # save_all=True
+    )
 
     # 获取 PDF bytes 并重置指针（可选）
     pdf_bytes = pdf_buffer.getvalue()
diff --git a/pyproject.toml b/pyproject.toml
index 2c604849..11a25f92 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,7 +21,7 @@ dependencies = [
     "click>=8.1.7",
     "loguru>=0.7.2",
     "numpy>=1.21.6",
-    "pdfminer.six==20250506",
+    "pdfminer.six==20251230",
     "tqdm>=4.67.1",
     "requests",
     "httpx",