Restore full pipeline: 3-step summarization, formatting, PDF/DOCX generation

processors/pdf_processor.py

@@ -5,10 +5,10 @@ import logging
 from pathlib import Path
 from typing import Dict, Any
 from concurrent.futures import ThreadPoolExecutor, as_completed
-from ..core import FileProcessingError
-from ..config import settings
-from ..services import vram_manager
-from ..services.gpu_detector import gpu_detector
+from core import FileProcessingError
+from config import settings
+from services import vram_manager
+from services.gpu_detector import gpu_detector
 from .base_processor import FileProcessor
 
 try:
@@ -22,6 +22,11 @@ try:
     PDF_OCR_AVAILABLE = True
 except ImportError:
     PDF_OCR_AVAILABLE = False
+    # Provide stub for type hints
+    try:
+        from PIL import Image
+    except ImportError:
+        Image = None  # type: ignore
 
 
 class PDFProcessor(FileProcessor):