app updated

app.py

@@ -59,6 +59,9 @@ with st.sidebar:
     # Clear button
     clear_button = st.sidebar.button("Clear Conversation", key="clear")
 
+    # Display pdf
+    displayPDF(uploaded_files)
+
 
 # Initialize chat history
 if "messages" not in st.session_state:

helper/utils.py

@@ -1,6 +1,8 @@
 import os
 from typing import Any, Dict, List, Tuple, Union
 
+import base64
+import streamlit as st
 import numpy as np
 import pandas as pd
 import PyPDF2
@@ -45,6 +47,30 @@ def read_and_textify(
     return [text_list, sources_list]
 
 
+def displayPDF(file: str) -> None:
+    """
+    This function reads a PDF file, encodes it into base64 and then displays it on a Streamlit app using markdown.
+
+    Parameters:
+    - file (str): The file path to the PDF file that needs to be displayed.
+
+    Returns:
+    - None
+    """
+
+    # Opening file from file path
+    with open(file, "rb") as f:
+        # Encoding file content to base64
+        base64_pdf = base64.b64encode(f.read()).decode('utf-8')
+
+    # Embedding PDF in HTML with specific size and type
+    pdf_display = F'<embed src="data:application/pdf;base64,{base64_pdf}" width="700" height="1000" type="application/pdf">'
+
+    # Displaying File in Streamlit app by allowing unsafe HTML
+    st.markdown(pdf_display, unsafe_allow_html=True)
+
+
+
 client = OpenAI(api_key=os.environ["OPENAI_API_KEY"])