fix scope bug

app.py

@@ -63,7 +63,9 @@ def predict(pdf, confidence, generate_file):
     document = fitz.open(pdf.name)
     results = []
     images = []
-    total_redacted_image_areas = 0
+    total_image_areas = 0
+    total_content_areas = 0
+    total_redaction_area = 0
     tmp_dir = tempfile.gettempdir()
     for page_num, page in enumerate(document, start=1):
         image_pixmap = page.get_pixmap()
@@ -103,9 +105,6 @@ def predict(pdf, confidence, generate_file):
         tmp_dir, filename_without_extension, "redacted_pages.pdf"
     )
     if generate_file:
-        total_image_areas = 0
-        total_content_areas = 0
-        total_redaction_area = 0
         pdf = FPDF()
         pdf.set_auto_page_break(0)
         imagelist = sorted(