Update app.py

app.py

@@ -50,7 +50,7 @@ def extract_text_from_pptx(pptx_path):
 ### Step 3: Extract Images from PDF ###
 def extract_images_from_pdf(pdf_path):
     images = []
-    doc = fitz.open(pdf_path)
+    doc = pymupdf.open(pdf_path)
     for i, page in enumerate(doc):
         for img_index, img in enumerate(page.get_images(full=True)):
             xref = img[0]