Update app.py

app.py

@@ -2,6 +2,13 @@ import streamlit as st
 import pandas as pd
 from PyPDF2 import PdfReader
 from difflib import ndiff
+import os
+import matplotlib.pyplot as plt
+from doctr.io import DocumentFile
+from doctr.models import ocr_predictor
+from sentence_transformers import SentenceTransformer
+from sklearn.metrics.pairwise import cosine_similarity
+import fitz
 
 def process_data(pdf_file, threshold, line_diff):
     # Extract text from the PDF file