Create app.py

app.py

@@ -0,0 +1,50 @@
+import tempfile
+import streamlit as st
+import os
+
+def create_pdf_download_button(pdf_path):
+    # Check if the PDF file exists
+    if not os.path.exists(pdf_path):
+        st.error(f"The PDF file '{os.path.basename(pdf_path)}' was not found.")
+        return
+    
+    # Create a download link
+    st.markdown(
+        f"""
+        <a href="data:application/pdf;base64,{base64_encode_file(pdf_path)}"
+           download="{os.path.basename(pdf_path)}"
+           class="streamlit-button">
+        Download PDF
+        </a>
+        """,
+        unsafe_allow_html=True,
+    )
+
+def base64_encode_file(file_path):
+    # Read the file contents
+    with open(file_path, "rb") as file:
+        encoded_data = base64.b64encode(file.read()).decode()
+    
+    return encoded_data
+
+def main():
+    if "tmp_dir" not in st.session_state:
+        st.session_state.tmp_dir = tempfile.TemporaryDirectory()
+    if "temp_pdf_path" not in st.session_state:
+        st.session_state.temp_pdf_path = None
+    
+    uploaded_file = st.file_uploader("Choose a PDF file", type="pdf")
+    
+    if uploaded_file:
+        pdf_file = uploaded_file
+        temp_pdf_path = os.path.join(st.session_state.tmp_dir, "pdf_file")
+        with open(temp_pdf_path, "wb") as f:
+        f.write(pdf_file.getvalue())
+        st.session_state.temp_pdf_path = temp_pdf_path
+        uploaded_file = None
+    
+        create_pdf_download_button(st.session_state.temp_pdf_path)
+
+
+if __name__ == "__main__":
+    main()